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(-) Description

Title :  MAIN PROTEASE OF HCOV-HKU1
 
Authors :  Q. Zhao, C. Chen, S. Li, Y. Zou
Date :  07 May 08  (Deposition) - 16 Sep 08  (Release) - 09 Dec 15  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B,C,D,E,F,G,H
Biol. Unit 1:  A,B,C,D,E,F,G,H  (1x)
Biol. Unit 2:  B (1x),D (1x),G (1x),H (1x)
Biol. Unit 3:  A,C,E,F  (1x)
Keywords :  Main Protease, Atp-Binding, Endonuclease, Exonuclease, Helicase, Membrane, Metal-Binding, Nuclease, Nucleotide-Binding, Nucleotidyltransferase, Protease, Rna Replication, Rna-Binding, Rna- Directed Rna Polymerase, Thiol Protease, Transferase, Transmembrane, Zinc-Finger, Hydrolase-Hydrolase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Q. Zhao, S. Li, F. Xue, Y. Zou, C. Chen, M. Bartlam, Z. Rao
Structure Of The Main Protease From A Global Infectious Human Coronavirus, Hcov-Hku1.
J. Virol. V. 82 8647 2008
PubMed-ID: 18562531  |  Reference-DOI: 10.1128/JVI.00298-08

(-) Compounds

Molecule 1 - 3C-LIKE PROTEINASE
    Chains: B, A, C, D
    EC Number: 3.4.22.-
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PGEX4T-1
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: REP
    Organism Common: HCOV-HKU1
    Organism Scientific: HUMAN CORONAVIRUS
    Organism Taxid: 443239
    Strain: HKU1
 
Molecule 2 - N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~- ((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3- YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE
    Chains: H, F, E, G
    Engineered: YES
    Organism Scientific: SYNTHETIC CONSTRUCT
    Organism Taxid: 32630
    Synthetic: YES

 Structural Features

(-) Chains, Units

  12345678
Asymmetric Unit : ABCDEFGH
Biological Unit 1 (1x): ABCDEFGH
Biological Unit 2 (1x):  B (1x) D (1x)  G (1x)H (1x)
Biological Unit 3 (1x): A C EF  

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 12)

Asymmetric Unit (3, 12)
No.NameCountTypeFull Name
10104Mod. Amino AcidPHENYLMETHANOL
202J4Mod. Amino Acid5-METHYL-1,2-OXAZOLE-3-CARBOXYLIC ACID
3PJE4Mod. Amino Acid(E,4S)-4-AZANYL-5-[(3S)-2-OXIDANYLIDENEPYRROLIDIN-3-YL]PENT-2-ENOIC ACID
Biological Unit 1 (3, 12)
No.NameCountTypeFull Name
10104Mod. Amino AcidPHENYLMETHANOL
202J4Mod. Amino Acid5-METHYL-1,2-OXAZOLE-3-CARBOXYLIC ACID
3PJE4Mod. Amino Acid(E,4S)-4-AZANYL-5-[(3S)-2-OXIDANYLIDENEPYRROLIDIN-3-YL]PENT-2-ENOIC ACID
Biological Unit 2 (3, 3)
No.NameCountTypeFull Name
10101Mod. Amino AcidPHENYLMETHANOL
202J1Mod. Amino Acid5-METHYL-1,2-OXAZOLE-3-CARBOXYLIC ACID
3PJE1Mod. Amino Acid(E,4S)-4-AZANYL-5-[(3S)-2-OXIDANYLIDENEPYRROLIDIN-3-YL]PENT-2-ENOIC ACID
Biological Unit 3 (3, 6)
No.NameCountTypeFull Name
10102Mod. Amino AcidPHENYLMETHANOL
202J2Mod. Amino Acid5-METHYL-1,2-OXAZOLE-3-CARBOXYLIC ACID
3PJE2Mod. Amino Acid(E,4S)-4-AZANYL-5-[(3S)-2-OXIDANYLIDENEPYRROLIDIN-3-YL]PENT-2-ENOIC ACID

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS B:41 , PHE B:140 , CYS B:142 , GLY B:143 , CYS B:145 , HIS B:163 , GLN B:164 , LEU B:165 , GLU B:166 , GLN B:189 , VAL B:190 , VAL B:191 , GLN B:192BINDING SITE FOR CHAIN H OF N-[(5-METHYLISOXAZOL -3-YL)CARBONYL]ALANYL-L-VALYL-N~1~- ((1R,2Z)-4-(BENZYLOXY)-4-OXO- 1-{[(3R)-2-OXOPYRROLIDIN-3- YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE
2AC2SOFTWAREHIS A:41 , PHE A:140 , CYS A:142 , GLY A:143 , CYS A:145 , HIS A:163 , GLN A:164 , LEU A:165 , GLU A:166 , HIS A:172 , GLN A:189 , VAL A:190 , VAL A:191BINDING SITE FOR CHAIN F OF N-[(5-METHYLISOXAZOL -3-YL)CARBONYL]ALANYL-L-VALYL-N~1~- ((1R,2Z)-4-(BENZYLOXY)-4-OXO- 1-{[(3R)-2-OXOPYRROLIDIN-3- YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE
3AC3SOFTWAREPRO A:96 , TYR A:97 , MET C:25 , THR C:26 , HIS C:41 , PHE C:140 , GLY C:143 , CYS C:145 , HIS C:163 , GLN C:164 , LEU C:165 , GLU C:166 , HIS C:172 , GLN C:189 , VAL C:190 , VAL C:191BINDING SITE FOR CHAIN E OF N-[(5-METHYLISOXAZOL -3-YL)CARBONYL]ALANYL-L-VALYL-N~1~- ((1R,2Z)-4-(BENZYLOXY)-4-OXO- 1-{[(3R)-2-OXOPYRROLIDIN-3- YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE
4AC4SOFTWARETYR B:97 , MET D:25 , THR D:26 , HIS D:41 , PHE D:140 , CYS D:142 , GLY D:143 , SER D:144 , CYS D:145 , HIS D:163 , GLN D:164 , LEU D:165 , GLU D:166 , HIS D:172 , GLN D:189 , VAL D:190 , VAL D:191BINDING SITE FOR CHAIN G OF N-[(5-METHYLISOXAZOL -3-YL)CARBONYL]ALANYL-L-VALYL-N~1~- ((1R,2Z)-4-(BENZYLOXY)-4-OXO- 1-{[(3R)-2-OXOPYRROLIDIN-3- YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3D23)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Gly B:299 -Val B:300
2Ala A:-1 -Ser A:0

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3D23)

(-) PROSITE Motifs  (1, 3)

Asymmetric Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1M_PROPS51442 Coronavirus main protease (M-pro) domain profile.R1A_CVHN13335-3637
 
 		  3A:1-300
B:1-300
D:1-299
R1AB_CVHN13335-3637
 
 		  3A:1-300
B:1-300
D:1-299
Biological Unit 1 (1, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1M_PROPS51442 Coronavirus main protease (M-pro) domain profile.R1A_CVHN13335-3637
 
 		  3A:1-300
B:1-300
D:1-299
R1AB_CVHN13335-3637
 
 		  3A:1-300
B:1-300
D:1-299
Biological Unit 2 (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1M_PROPS51442 Coronavirus main protease (M-pro) domain profile.R1A_CVHN13335-3637
 
 		  2-
B:1-300
D:1-299
R1AB_CVHN13335-3637
 
 		  2-
B:1-300
D:1-299
Biological Unit 3 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1M_PROPS51442 Coronavirus main protease (M-pro) domain profile.R1A_CVHN13335-3637
 
 		  1A:1-300
-
-
R1AB_CVHN13335-3637
 
 		  1A:1-300
-
-

(-) Exons   (0, 0)

(no "Exon" information available for 3D23)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:299
 aligned with R1AB_CVHN1 | P0C6X2 from UniProtKB/Swiss-Prot  Length:7182

    Alignment length:302
                                  3342      3352      3362      3372      3382      3392      3402      3412      3422      3432      3442      3452      3462      3472      3482      3492      3502      3512      3522      3532      3542      3552      3562      3572      3582      3592      3602      3612      3622      3632  
          R1AB_CVHN1   3333 LQSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV 3634
               SCOP domains d3d23a_ A: Coronavirus main proteinase (3Cl-pro   , putative coronavirus nsp2)                                                                                                                                                                                                                                 SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............hhh.eeeeee..eeeeeeee..eeeee.hhhh.---....hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeee.....eeeeeeeeeeee..eeeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhhh......hhhhhhhhhhhh.hhhhhhhhhhhhhh.................hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --M_PRO  PDB: A:1-300 UniProt: 3335-3637                                                                                                                                                                                                                                                                       PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 A   -1 ASSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICS---MNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV  300
                                     8        18        28        38      |  -|       58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298  
                                                                         45  49                                                                                                                                                                                                                                                           


Chain A from PDB  Type:PROTEIN  Length:299
 aligned with R1A_CVHN1 | P0C6U3 from UniProtKB/Swiss-Prot  Length:4471

    Alignment length:302
                                  3342      3352      3362      3372      3382      3392      3402      3412      3422      3432      3442      3452      3462      3472      3482      3492      3502      3512      3522      3532      3542      3552      3562      3572      3582      3592      3602      3612      3622      3632  
           R1A_CVHN1   3333 LQSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV 3634
               SCOP domains d3d23a_ A: Coronavirus main proteinase (3Cl-pro   , putative coronavirus nsp2)                                                                                                                                                                                                                                 SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............hhh.eeeeee..eeeeeeee..eeeee.hhhh.---....hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeee.....eeeeeeeeeeee..eeeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhhh......hhhhhhhhhhhh.hhhhhhhhhhhhhh.................hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --M_PRO  PDB: A:1-300 UniProt: 3335-3637                                                                                                                                                                                                                                                                       PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 A   -1 ASSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICS---MNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV  300
                                     8        18        28        38      |  -|       58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298  
                                                                         45  49                                                                                                                                                                                                                                                           


Chain B from PDB  Type:PROTEIN  Length:301
 aligned with R1AB_CVHN1 | P0C6X2 from UniProtKB/Swiss-Prot  Length:7182

    Alignment length:301
                                  3343      3353      3363      3373      3383      3393      3403      3413      3423      3433      3443      3453      3463      3473      3483      3493      3503      3513      3523      3533      3543      3553      3563      3573      3583      3593      3603      3613      3623      3633 
          R1AB_CVHN1   3334 QSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV 3634
               SCOP domains d3d23b_ B: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2)                                                                                                                                                                                                                                   SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............hhh.eeeeee..eeeeeeee..eeeee.hhhh........hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeee.....eeeeeeeeeeee..eeeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhhh......hhhhhhhhhhhh.hhhhhhhhhhhhhh.................hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -M_PRO  PDB: B:1-300 UniProt: 3335-3637                                                                                                                                                                                                                                                                       PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 B    0 SSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV  300
                                     9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299 


Chain B from PDB  Type:PROTEIN  Length:301
 aligned with R1A_CVHN1 | P0C6U3 from UniProtKB/Swiss-Prot  Length:4471

    Alignment length:301
                                  3343      3353      3363      3373      3383      3393      3403      3413      3423      3433      3443      3453      3463      3473      3483      3493      3503      3513      3523      3533      3543      3553      3563      3573      3583      3593      3603      3613      3623      3633 
           R1A_CVHN1   3334 QSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV 3634
               SCOP domains d3d23b_ B: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2)                                                                                                                                                                                                                                   SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............hhh.eeeeee..eeeeeeee..eeeee.hhhh........hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeee.....eeeeeeeeeeee..eeeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhhh......hhhhhhhhhhhh.hhhhhhhhhhhhhh.................hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -M_PRO  PDB: B:1-300 UniProt: 3335-3637                                                                                                                                                                                                                                                                       PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 B    0 SSGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAGV  300
                                     9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299 


Chain C from PDB  Type:PROTEIN  Length:298
 aligned with R1AB_CVHN1 | P0C6X2 from UniProtKB/Swiss-Prot  Length:7182

    Alignment length:298
                                  3345      3355      3365      3375      3385      3395      3405      3415      3425      3435      3445      3455      3465      3475      3485      3495      3505      3515      3525      3535      3545      3555      3565      3575      3585      3595      3605      3615      3625        
          R1AB_CVHN1   3336 GIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG 3633
               SCOP domains d3d23c_ C: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2)                                                                                                                                                                                                                                SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........hhh.eeeeee..eeeeeeee..eeeee.hhhh........hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeeeee..eeeeeeeeeee.....eeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhh.......hhhhhhhhhhhh.hhhhhhhhhhhhh..................hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE M_PRO  PDB: - UniProt: 3335-3637                                                                                                                                                                                                                                                                           PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 C    2 GIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG  299
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291        


Chain C from PDB  Type:PROTEIN  Length:298
 aligned with R1A_CVHN1 | P0C6U3 from UniProtKB/Swiss-Prot  Length:4471

    Alignment length:298
                                  3345      3355      3365      3375      3385      3395      3405      3415      3425      3435      3445      3455      3465      3475      3485      3495      3505      3515      3525      3535      3545      3555      3565      3575      3585      3595      3605      3615      3625        
           R1A_CVHN1   3336 GIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG 3633
               SCOP domains d3d23c_ C: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2)                                                                                                                                                                                                                                SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........hhh.eeeeee..eeeeeeee..eeeee.hhhh........hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeeeee..eeeeeeeeeee.....eeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhh.......hhhhhhhhhhhh.hhhhhhhhhhhhh..................hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) M_PRO  PDB: - UniProt: 3335-3637                                                                                                                                                                                                                                                                           PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 C    2 GIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG  299
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291        


Chain D from PDB  Type:PROTEIN  Length:299
 aligned with R1AB_CVHN1 | P0C6X2 from UniProtKB/Swiss-Prot  Length:7182

    Alignment length:299
                                  3344      3354      3364      3374      3384      3394      3404      3414      3424      3434      3444      3454      3464      3474      3484      3494      3504      3514      3524      3534      3544      3554      3564      3574      3584      3594      3604      3614      3624         
          R1AB_CVHN1   3335 SGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG 3633
               SCOP domains d3d23d_ D: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2)                                                                                                                                                                                                                                 SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhh.eeeeee..eeeeeeee..eeeee.hhhhhhhhh...hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeeeee..eeeeeeeeeee.....eeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhh.......hhhhhhhhhhhh.hhhhhhhhhhhhh..................hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE M_PRO  PDB: D:1-299 UniProt: 3335-3637                                                                                                                                                                                                                                                                      PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 D    1 SGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG  299
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290         


Chain D from PDB  Type:PROTEIN  Length:299
 aligned with R1A_CVHN1 | P0C6U3 from UniProtKB/Swiss-Prot  Length:4471

    Alignment length:299
                                  3344      3354      3364      3374      3384      3394      3404      3414      3424      3434      3444      3454      3464      3474      3484      3494      3504      3514      3524      3534      3544      3554      3564      3574      3584      3594      3604      3614      3624         
           R1A_CVHN1   3335 SGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG 3633
               SCOP domains d3d23d_ D: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2)                                                                                                                                                                                                                                 SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhh.eeeeee..eeeeeeee..eeeee.hhhhhhhhh...hhhhhhhhhhhh.eeeee..eee.eeeeeee..eeeeee.........eee.......eeeeeeee..eeeeeeeee..................eeeeee..eeeeeeeeeee.....eeee........................hhhhhhhhhhhhhhh...........hhhhhhhhhhhh.......hhhhhhhhhhhh.hhhhhhhhhhhhh..................hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) M_PRO  PDB: D:1-299 UniProt: 3335-3637                                                                                                                                                                                                                                                                      PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3d23 D    1 SGIVKMVSPTSKIEPCIVSVTYGSMTLNGLWLDDKVYCPRHVICSSSNMNEPDYSALLCRVTLGDFTIMSGRMSLTVVSYQMQGCQLVLTVSLQNPYTPKYTFGNVKPGETFTVLAAYNGRPQGAFHVTMRSSYTIKGSFLCGSCGSVGYVLTGDSVKFVYMHQLELSTGCHTGTDFTGNFYGPYRDAQVVQLPVKDYVQTVNVIAWLYAAILNNCAWFVQNDVCSTEDFNVWAMANGFSQVKADLVLDALASMTGVSIETLLAAIKRLYMGFQGRQILGSCTFEDELAPSDVYQQLAG  299
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290         


Chain E from PDB  Type:PROTEIN  Length:6
                                       
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author ...... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                3d23 E    1 xAVLxx    6
                            |   ||
                            1-02J|
                                5-PJE
                                 6-010


Chain F from PDB  Type:PROTEIN  Length:6
                                       
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author ...... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                3d23 F    1 xAVLxx    6
                            |   ||
                            |   ||
                            1-02J|
                                5-PJE
                                 6-010


Chain G from PDB  Type:PROTEIN  Length:6
                                       
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author ...... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                3d23 G    1 xAVLxx    6
                            |   ||
                            |   ||
                            1-02J|
                                5-PJE
                                 6-010


Chain H from PDB  Type:PROTEIN  Length:6
                                       
               SCOP domains ------ SCOP domains
               CATH domains ------ CATH domains
               Pfam domains ------ Pfam domains
         Sec.struct. author ...... Sec.struct. author
                 SAPs(SNPs) ------ SAPs(SNPs)
                    PROSITE ------ PROSITE
                 Transcript ------ Transcript
                3d23 H    1 xAVLxx    6
                            |   ||
                            |   ||
                            1-02J|
                                5-PJE
                                 6-010
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 4)

Asymmetric Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3D23)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3D23)

(-) Gene Ontology  (46, 76)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (R1A_CVHN1 | P0C6U3)
molecular function
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    GO:0003968    RNA-directed 5'-3' RNA polymerase activity    Catalysis of the reaction: nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1); uses an RNA template, i.e. the catalysis of RNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time.
    GO:0004197    cysteine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008234    cysteine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0003676    nucleic acid binding    Interacting selectively and non-covalently with any nucleic acid.
    GO:0008242    omega peptidase activity    Catalysis of the removal of terminal peptide residues that are substituted, cyclized or linked by isopeptide bonds (peptide linkages other than those of alpha-carboxyl to alpha-amino groups).
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0036459    thiol-dependent ubiquitinyl hydrolase activity    Catalysis of the thiol-dependent hydrolysis of an ester, thioester, amide, peptide or isopeptide bond formed by the C-terminal glycine of ubiquitin.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0030683    evasion or tolerance by virus of host immune response    Any process, either active or passive, by which a virus avoids the effects of the host organism's immune response. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0039595    induction by virus of catabolism of host mRNA    The process in which a virus increases the frequency, rate or extent of the breakdown of host messenger RNA (mRNA).
    GO:0039520    induction by virus of host autophagy    Any process in which a virus activates or increases the frequency, rate or extent of autophagy in the host.
    GO:0039648    modulation by virus of host protein ubiquitination    Any process in which a virus modulates the frequency, rate or extent of protein ubiquitination in the host organism. Ubiquitination is the process in which one or more ubiquitin groups are added to a protein.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0039548    suppression by virus of host IRF3 activity    Any process in which a virus stops, prevents, or reduces the activity of host IRF3 (interferon regulatory factor-3), a transcription factor in the RIG-I/MDA-5 signaling pathway. Viral infection triggers phosphorylation of cytoplasmic IRF3, which allows IRF3 to form a homodimer, migrate to the nucleus, and activate transcription of IFN-alpha and IFN-beta genes.
    GO:0039579    suppression by virus of host ISG15 activity    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host ubiquitin-like protein ISG15 activity. ISG15 is a ubiquitin-like protein that is conjugated to lysine residues on various target proteins. Viruses escape from the antiviral activity of ISG15 by using different mechanisms; the influenza B virus NS1 protein for instance blocks the covalent linkage of ISG15 to its target proteins by directly interacting with ISG15. The papain-like protease from the coronavirus cleaves ISG15 derivatives.
    GO:0039657    suppression by virus of host gene expression    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of gene expression in the host organism. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA (for protein-coding genes) and the translation of that mRNA into protein. Some protein processing events may be included when they are required to form an active form of a product from an inactive precursor form.
    GO:0039503    suppression by virus of host innate immune response    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of the innate immune response of the host organism, the host's first line of defense.
    GO:0039502    suppression by virus of host type I interferon-mediated signaling pathway    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of type I interferon-mediated signaling in the host organism. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
    GO:0001172    transcription, RNA-templated    The cellular synthesis of RNA on a template of RNA.
    GO:0019079    viral genome replication    Any process involved directly in viral genome replication, including viral nucleotide metabolism.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
    GO:0019082    viral protein processing    Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a viral protein.
cellular component
    GO:0030430    host cell cytoplasm    The cytoplasm of a host cell.
    GO:0033644    host cell membrane    Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0044220    host cell perinuclear region of cytoplasm    The host cell cytoplasm situated near, or occurring around, the host nucleus.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

Chain A,B,C,D   (R1AB_CVHN1 | P0C6X2)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    GO:0003968    RNA-directed 5'-3' RNA polymerase activity    Catalysis of the reaction: nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1); uses an RNA template, i.e. the catalysis of RNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time.
    GO:0004197    cysteine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008234    cysteine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0004519    endonuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
    GO:0004527    exonuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids by removing nucleotide residues from the 3' or 5' end.
    GO:0016896    exoribonuclease activity, producing 5'-phosphomonoesters    Catalysis of the hydrolysis of ester linkages within ribonucleic acids by removing nucleotide residues from the 3' or 5' end to yield 5' phosphomonoesters.
    GO:0004386    helicase activity    Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a DNA or RNA helix.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0004518    nuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids.
    GO:0003676    nucleic acid binding    Interacting selectively and non-covalently with any nucleic acid.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0016779    nucleotidyltransferase activity    Catalysis of the transfer of a nucleotidyl group to a reactant.
    GO:0008242    omega peptidase activity    Catalysis of the removal of terminal peptide residues that are substituted, cyclized or linked by isopeptide bonds (peptide linkages other than those of alpha-carboxyl to alpha-amino groups).
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0036459    thiol-dependent ubiquitinyl hydrolase activity    Catalysis of the thiol-dependent hydrolysis of an ester, thioester, amide, peptide or isopeptide bond formed by the C-terminal glycine of ubiquitin.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0090503    RNA phosphodiester bond hydrolysis, exonucleolytic    The chemical reactions and pathways involving the hydrolysis of terminal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.
    GO:0030683    evasion or tolerance by virus of host immune response    Any process, either active or passive, by which a virus avoids the effects of the host organism's immune response. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0039595    induction by virus of catabolism of host mRNA    The process in which a virus increases the frequency, rate or extent of the breakdown of host messenger RNA (mRNA).
    GO:0039520    induction by virus of host autophagy    Any process in which a virus activates or increases the frequency, rate or extent of autophagy in the host.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0039648    modulation by virus of host protein ubiquitination    Any process in which a virus modulates the frequency, rate or extent of protein ubiquitination in the host organism. Ubiquitination is the process in which one or more ubiquitin groups are added to a protein.
    GO:0090305    nucleic acid phosphodiester bond hydrolysis    The nucleic acid metabolic process in which the phosphodiester bonds between nucleotides are cleaved by hydrolysis.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0039579    suppression by virus of host ISG15 activity    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host ubiquitin-like protein ISG15 activity. ISG15 is a ubiquitin-like protein that is conjugated to lysine residues on various target proteins. Viruses escape from the antiviral activity of ISG15 by using different mechanisms; the influenza B virus NS1 protein for instance blocks the covalent linkage of ISG15 to its target proteins by directly interacting with ISG15. The papain-like protease from the coronavirus cleaves ISG15 derivatives.
    GO:0039644    suppression by virus of host NF-kappaB transcription factor activity    Any process in which a virus stops, prevents, or reduces the activity of host NF-kappaB activity.
    GO:0039657    suppression by virus of host gene expression    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of gene expression in the host organism. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA (for protein-coding genes) and the translation of that mRNA into protein. Some protein processing events may be included when they are required to form an active form of a product from an inactive precursor form.
    GO:0039503    suppression by virus of host innate immune response    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of the innate immune response of the host organism, the host's first line of defense.
    GO:0039502    suppression by virus of host type I interferon-mediated signaling pathway    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of type I interferon-mediated signaling in the host organism. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
    GO:0001172    transcription, RNA-templated    The cellular synthesis of RNA on a template of RNA.
    GO:0019079    viral genome replication    Any process involved directly in viral genome replication, including viral nucleotide metabolism.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
    GO:0019082    viral protein processing    Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a viral protein.
cellular component
    GO:0030430    host cell cytoplasm    The cytoplasm of a host cell.
    GO:0044172    host cell endoplasmic reticulum-Golgi intermediate compartment    A complex system of membrane-bounded compartments located between host cell endoplasmic reticulum (ER) and the host Golgi complex, with a distinctive membrane protein composition; involved in ER-to-Golgi transport.
    GO:0033644    host cell membrane    Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0044220    host cell perinuclear region of cytoplasm    The host cell cytoplasm situated near, or occurring around, the host nucleus.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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  R1A_CVHN1 | P0C6U3
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  R1AB_CVHN1 | P0C6X2
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