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(-) Description

Title :  CRYSTAL STRUCTURE OF MG(II)-COMPLEX OF RNASE III ENDONUCLEASE DOMAIN FROM AQUIFEX AEOLICUS AT 2.30 ANGSTROM RESOLUTION
 
Authors :  J. Blaszczyk, J. Gan, X. Ji
Date :  03 Nov 03  (Deposition) - 30 Mar 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  C,D  (1x)
Keywords :  Ribonuclease, Rnase Iii, Double-Stranded Rna, Rna Interference, Endonuclease Domain, Endonucleolytic Cleavage, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Blaszczyk, J. Gan, J. E. Tropea, D. L. Court, D. S. Waugh, X. Ji
Noncatalytic Assembly Of Ribonuclease Iii With Double-Stranded Rna.
Structure V. 12 457 2004
PubMed-ID: 15016361  |  Reference-DOI: 10.1016/J.STR.2004.02.004
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - RIBONUCLEASE III
    ChainsA, B, C, D
    EC Number3.1.26.3
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPKM803
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentN-TERMINAL ENDONUCLEASE DOMAIN (RESIDUES 1-147)
    GeneRNC, AQ_946
    Organism ScientificAQUIFEX AEOLICUS
    Organism Taxid63363
    SynonymRNASE III

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABCD
Biological Unit 1 (1x)AB  
Biological Unit 2 (1x)  CD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 4)

Asymmetric Unit (1, 4)
No.NameCountTypeFull Name
1MG4Ligand/IonMAGNESIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1MG-1Ligand/IonMAGNESIUM ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:40 , ASP A:107 , GLU A:110 , HOH A:1004 , HOH A:1056 , HOH A:1136BINDING SITE FOR RESIDUE MG A 761
2AC2SOFTWAREGLU B:240 , ASP B:307 , GLU B:310 , HOH B:1007 , HOH B:1245 , HOH B:1319BINDING SITE FOR RESIDUE MG B 762
3AC3SOFTWAREGLU C:440 , ASP C:507 , GLU C:510 , HOH C:1008 , HOH C:1015 , HOH C:1039BINDING SITE FOR RESIDUE MG C 763
4AC4SOFTWAREGLU D:640 , ASP D:707 , GLU D:710 , HOH D:1123 , HOH D:1302BINDING SITE FOR RESIDUE MG D 764

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1RC5)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1RC5)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1RC5)

(-) PROSITE Motifs  (2, 8)

Asymmetric Unit (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RNASE_3_2PS50142 Ribonuclease III family domain profile.RNC_AQUAE4-121
 
 
 
  4A:4-121
B:204-321
C:404-521
D:604-721
2RNASE_3_1PS00517 Ribonuclease III family signature.RNC_AQUAE37-45
 
 
 
  4A:37-45
B:237-245
C:437-445
D:637-645
Biological Unit 1 (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RNASE_3_2PS50142 Ribonuclease III family domain profile.RNC_AQUAE4-121
 
 
 
  2A:4-121
B:204-321
-
-
2RNASE_3_1PS00517 Ribonuclease III family signature.RNC_AQUAE37-45
 
 
 
  2A:37-45
B:237-245
-
-
Biological Unit 2 (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RNASE_3_2PS50142 Ribonuclease III family domain profile.RNC_AQUAE4-121
 
 
 
  2-
-
C:404-521
D:604-721
2RNASE_3_1PS00517 Ribonuclease III family signature.RNC_AQUAE37-45
 
 
 
  2-
-
C:437-445
D:637-645

(-) Exons   (0, 0)

(no "Exon" information available for 1RC5)

(-) 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:148
 aligned with RNC_AQUAE | O67082 from UniProtKB/Swiss-Prot  Length:221

    Alignment length:148
                             1                                                                                                                                                  
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139        
            RNC_AQUAE     - -MKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGR 147
               SCOP domains d1rc5a_ A: RNase III endonuclease catalytic domain                                                                                                   SCOP domains
               CATH domains 1rc5A00 A:0-147  [code=1.10.1520.10, no name defined]                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhh....hhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----RNASE_3_2  PDB: A:4-121 UniProt: 4-121                                                                                -------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------RNASE_3_1------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rc5 A   0 GMKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGR 147
                                     9        19        29        39        49        59        69        79        89        99       109       119       129       139        

Chain B from PDB  Type:PROTEIN  Length:149
 aligned with RNC_AQUAE | O67082 from UniProtKB/Swiss-Prot  Length:221

    Alignment length:149
                             1                                                                                                                                                   
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139         
            RNC_AQUAE     - -MKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGRV 148
               SCOP domains d1rc5b_ B: RNase III endonuclease catalytic domain                                                                                                    SCOP domains
               CATH domains 1rc5B00 B:200-348  [code=1.10.1520.10, no name defined]                                                                                               CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhhh....hhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----RNASE_3_2  PDB: B:204-321 UniProt: 4-121                                                                              --------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------RNASE_3_1------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rc5 B 200 GMKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGRH 348
                                   209       219       229       239       249       259       269       279       289       299       309       319       329       339         

Chain C from PDB  Type:PROTEIN  Length:149
 aligned with RNC_AQUAE | O67082 from UniProtKB/Swiss-Prot  Length:221

    Alignment length:149
                             1                                                                                                                                                   
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139         
            RNC_AQUAE     - -MKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGRV 148
               SCOP domains d1rc5c_ C: RNase III endonuclease catalytic domain                                                                                                    SCOP domains
               CATH domains 1rc5C00 C:400-548  [code=1.10.1520.10, no name defined]                                                                                               CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhh....hhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----RNASE_3_2  PDB: C:404-521 UniProt: 4-121                                                                              --------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------RNASE_3_1------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rc5 C 400 GMKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGRH 548
                                   409       419       429       439       449       459       469       479       489       499       509       519       529       539         

Chain D from PDB  Type:PROTEIN  Length:148
 aligned with RNC_AQUAE | O67082 from UniProtKB/Swiss-Prot  Length:221

    Alignment length:148
                             1                                                                                                                                                  
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139        
            RNC_AQUAE     - -MKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGR 147
               SCOP domains d1rc5d_ D: RNase III endonuclease catalytic domain                                                                                                   SCOP domains
               CATH domains 1rc5D00 D:600-747  [code=1.10.1520.10, no name defined]                                                                                              CATH domains
           Pfam domains (1) -------------------------------------Ribonuclease_3-1rc5D01 D:637-721                                                     -------------------------- Pfam domains (1)
           Pfam domains (2) -------------------------------------Ribonuclease_3-1rc5D02 D:637-721                                                     -------------------------- Pfam domains (2)
           Pfam domains (3) -------------------------------------Ribonuclease_3-1rc5D03 D:637-721                                                     -------------------------- Pfam domains (3)
           Pfam domains (4) -------------------------------------Ribonuclease_3-1rc5D04 D:637-721                                                     -------------------------- Pfam domains (4)
         Sec.struct. author ......hhhhhhh....hhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----RNASE_3_2  PDB: D:604-721 UniProt: 4-121                                                                              -------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------RNASE_3_1------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1rc5 D 600 GMKMLEQLEKKLGYTFKDKSLLEKALTHVSYSKKEHYETLEFLGDALVNFFIVDLLVQYSPNKREGFLSPLKAYLISEEFFNLLAQKLELHKFIRIKRGKINETIIGDVFEALWAAVYIDSGRDANFTRELFYKLFKEDILSAIKEGR 747
                                   609       619       629       639       649       659       669       679       689       699       709       719       729       739        

   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

(-) CATH Domains  (1, 4)

Asymmetric Unit

(-) Pfam Domains  (1, 4)

Asymmetric Unit

(-) Gene Ontology  (14, 14)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (RNC_AQUAE | O67082)
molecular function
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
    GO:0003725    double-stranded RNA binding    Interacting selectively and non-covalently with double-stranded RNA.
    GO:0004519    endonuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
    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:0004518    nuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids.
    GO:0004525    ribonuclease III activity    Catalysis of the endonucleolytic cleavage of RNA with 5'-phosphomonoesters and 3'-OH termini; makes two staggered cuts in both strands of dsRNA, leaving a 3' overhang of 2 nt.
biological process
    GO:0090502    RNA phosphodiester bond hydrolysis, endonucleolytic    The chemical reactions and pathways involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.
    GO:0006396    RNA processing    Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.
    GO:0006397    mRNA processing    Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
    GO:0016075    rRNA catabolic process    The chemical reactions and pathways resulting in the breakdown of rRNA, ribosomal RNA, a structural constituent of ribosomes.
    GO:0006364    rRNA processing    Any process involved in the conversion of a primary ribosomal RNA (rRNA) transcript into one or more mature rRNA molecules.
    GO:0008033    tRNA processing    The process in which a pre-tRNA molecule is converted to a mature tRNA, ready for addition of an aminoacyl group.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        RNC_AQUAE | O670821i4s 1jfz 1rc7 1yyk 1yyo 1yyw 1yz9 2ez6 2nue 2nuf 2nug 4m2z 4m30

(-) Related Entries Specified in the PDB File

1di2 1DI2 IS THE CRYSTAL STRUCTURE OF A DOUBLE-STRANDED RNA- BINDING DOMAIN FROM XENOPUS LAEVIS COMPLEXED WITH DOUBLE- STRANDED RNA
1i4s 1I4S IS THE CRYSTAL STRUCTURE OF UNLIGATED RNASE III ENDONUCLEASE DOMAIN FROM AQUIFEX AEOLICUS
1jfz 1JFZ IS THE CRYSTAL STRUCTURE OF A MN(II)-COMPLEX OF RNASE III ENDONUCLEASE DOMAIN FROM AQUIFEX AEOLICUS
1o0w 1O0W IS THE CRYSTAL STRUCTURE OF UNLIGATED RIBONUCLEASE III FROM THERMOTOGA MARITIMA
1rc7 CRYSTAL STRUCTURE OF RNASE III MUTANT E110K FROM AQUIFEX AEOLICUS COMPLEXED WITH DS-RNA AT 2.15 ANGSTROM RESOLUTION
1stu 1STU IS THE NMR SOLUTION STRUCTURE OF A DOUBLE-STRANDED RNA -BINDING DOMAIN FROM DROSOPHILA STAUFEN PROTEIN