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(-) Description

Title :  MUTANT D416A OF THE CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS IN COMPLEX WITH METHYL-CELLOBIOSYL-4-DEOXY-4-THIO-BETA-D-CELLOBIOSIDE
 
Authors :  A. Varrot, T. Frandsen, H. Driguez, G. J. Davies
Date :  13 May 02  (Deposition) - 12 Feb 03  (Release) - 19 Oct 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase, Cellulose Degradation, Cellobiohydrolase, Cellulase, Glycoside Hydrolase Family 6, Thiooligosaccharide (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Varrot, T. Frandsen, H. Driguez, G. J. Davies
Structure Of The Humicola Insolens Cellobiohydrolase Cel6A D416A Mutant In Complex With A Non-Hydrolysable Substrate Analogue, Methyl Cellobiosyl-4-Thio-Beta-Cellobioside, At 1. 9 A
Acta Crystallogr. , Sect. D V. 58 2201 2002
PubMed-ID: 12454501  |  Reference-DOI: 10.1107/S0907444902017006

(-) Compounds

Molecule 1 - CELLOBIOHYDROLASE II
    Chains: A
    EC Number: 3.2.1.91
    Engineered: YES
    Expression System: ASPERGILLUS ORYZAE
    Expression System Taxid: 5062
    Fragment: CATALYTIC CORE DOMAIN, RESIDUES 89-450
    Mutation: YES
    Organism Scientific: HUMICOLA INSOLENS
    Organism Taxid: 34413
    Other Details: N-LINKED N-ACETYLGLUCOSAMINE ON RESIDUE ASN 141
    Other Details - Source: UNDER CONTROL OF THE FUNGAL AMYLASEURCE 6 PROMOTER AND AMYLOGLUCOSIDASE TERMINATOR
    Synonym: CELLULASE, CEL6A

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 7)

Asymmetric/Biological Unit (5, 7)
No.NameCountTypeFull Name
1BGC2Ligand/IonBETA-D-GLUCOSE
2MGL1Ligand/IonO1-METHYL-GLUCOSE
3NA2Ligand/IonSODIUM ION
4NAG1Ligand/IonN-ACETYL-D-GLUCOSAMINE
5SGC1Ligand/Ion4-DEOXY-4-THIO-BETA-D-GLUCOPYRANOSE

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:157 , TYR A:329 , HOH A:2051BINDING SITE FOR RESIDUE NA A 505
2AC2SOFTWAREGLU A:286 , HOH A:2154BINDING SITE FOR RESIDUE NA A 506
3AC3SOFTWAREASN A:141 , ASP A:145 , ASN A:199 , HOH A:2040 , HOH A:2100 , HOH A:2261BINDING SITE FOR CHAIN A OF SUGAR BOUND TO ASN A 141 RESIDUES 500 TO 500
4AC4SOFTWARETRP A:137 , ASP A:139 , TYR A:174 , ARG A:179 , ASN A:234 , HIS A:271 , GLY A:273 , TRP A:274 , ALA A:309 , ASN A:310 , GLY A:369 , TRP A:371 , LYS A:399 , PRO A:400 , GLU A:403 , ASP A:405 , GLY A:432 , HOH A:2120 , HOH A:2166 , HOH A:2205 , HOH A:2222 , HOH A:2264 , HOH A:2265 , HOH A:2266 , HOH A:2267 , HOH A:2268 , HOH A:2269 , HOH A:2270BINDING SITE FOR CHAIN A OF POLYSACCHARIDE RESIDUES 501 TO 504

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:181 -A:240
2A:372 -A:419

(-) Cis Peptide Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1Asn A:164 -Pro A:165
2Ser A:324 -Pro A:325
3Gln A:361 -Pro A:362
4Lys A:426 -Pro A:427
5Asn A:447 -Pro A:448

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1GZ1)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GLYCOSYL_HYDROL_F6_1PS00655 Glycosyl hydrolases family 6 signature 1.GUX6_HUMIN198-214  1A:172-188
2GLYCOSYL_HYDROL_F6_2PS00656 Glycosyl hydrolases family 6 signature 2.GUX6_HUMIN246-255  1A:220-229

(-) Exons   (0, 0)

(no "Exon" information available for 1GZ1)

(-) Sequences/Alignments

Asymmetric/Biological 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:362
 aligned with GUX6_HUMIN | Q9C1S9 from UniProtKB/Swiss-Prot  Length:476

    Alignment length:362
                                   124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474  
           GUX6_HUMIN   115 YNGNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVETLSEIRAANQAGANPPYAAQIVVYDLPDRDCAAAASNGEWAIANNGANNYKGYINRIREILISFSDVRTILVIEPDSLANMVTNMNVAKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSISSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYDYHCGLEDALKPAPEAGQWFQAYFEQLLRNANPPF 476
               SCOP domains d1gz1a_ A: Cellobiohydrolase II (Cel6)                                                                                                                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1gz1A00 A:89-450 7-stranded glycosidases (cellulases)                                                                                                                                                                                                                                                                                                                      CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........ee..hhhhhhhhhhhhhhhh.hhhhhhhhhhhh.....eee.hhhhh.hhhhhhhhhhhhhhhh.....eeeeeee.................hhhhhhhhhhhhhhhhhhhhhhhh....eeeee....hhhhhhh..hhhhhhhhhhhhhhhhhhhhhh....eeeeee........hhhhhhhhhhhhhhhhhhh.....eeeeee.............hhhhh.....hhhhhhhhhhhhhhhh....eeeee.....................................eeeee...................hhhhhh.............hhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------GLYCOSYL_HYDROL_F-------------------------------GLYCOSYL_H----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1gz1 A  89 YAGNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVQTLSEIREANQAGANPQYAAQIVVYDLPDRDCAAAASNGEWAIANNGVNNYKAYINRIREILISFSDVRTILVIEPDSLANMVTNMNVPKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSVSSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYAYHCGLEDALKPAPEAGQWFNEYFIQLLRNANPPF 450
                                    98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318       328       338       348       358       368       378       388       398       408       418       428       438       448
   Legend:   → Mismatch (orange background)
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1GZ1)

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (GUX6_HUMIN | Q9C1S9)
molecular function
    GO:0016162    cellulose 1,4-beta-cellobiosidase activity    Catalysis of the hydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose and cellotetraose, releasing cellobiose from the non-reducing ends of the chains.
    GO:0030248    cellulose binding    Interacting selectively and non-covalently with cellulose.
    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:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
    GO:0004553    hydrolase activity, hydrolyzing O-glycosyl compounds    Catalysis of the hydrolysis of any O-glycosyl bond.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
    GO:0030245    cellulose catabolic process    The chemical reactions and pathways resulting in the breakdown of cellulose, a linear beta1-4 glucan of molecular mass 50-400 kDa with the pyranose units in the -4C1 conformation.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0000272    polysaccharide catabolic process    The chemical reactions and pathways resulting in the breakdown of a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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 Related Entries

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

UniProtKB/Swiss-Prot
        GUX6_HUMIN | Q9C1S9: 1bvw 1oc5 1oc6 1oc7 1ocb 1ocj 1ocn 2bvw 4i5r 4i5u

(-) Related Entries Specified in the PDB File

1bvw CELLOBIOHYDROLASE II (CEL6A) FROM HUMICOLA INSOLENS
1hgw CEL6A D175A MUTANT
1hgy CEL6A D221A MUTANT
1oc5 D405N MUTANT OF THE CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS IN COMPLEX WITH METHYL-CELLOBIOSYL-4-DEOXY-4-THIO-BETA-D- CELLOBIOSIDE
1oc6 STRUCTURE NATIVE OF THE D405N MUTANT OF THE CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS AT 1.5 ANGSTROM RESOLUTION
1oc7 D405N MUTANT OF THE CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS IN COMPLEX WITH METHYL-TETRATHIO-ALPHA-D-CELLOPENTOSIDE AT 1 .1 ANGSTROM RESOLUTION
1ocb STRUCTURE OF THE WILD-TYPE CELLOBIOHYDROLASE CEL6A FROM HUMICOLAS INSOLENS IN COMPLEX WITH A FLUORESCENT SUBSTRATE
1ocj MUTANT D416A OF THE CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS IN COMPLEX WITH A THIOPENTASACCHARIDE AT 1.3 ANGSTROM RESOLUTION
1ocn MUTANT D416A OF THE CELLOBIOHYDROLASE CEL6A FROM HUMICOLA INSOLENS IN COMPLEX WITH A CELLOBIO-DERIVED ISOFAGOMINE AT 1.3 ANGSTROM RESOLUTION
1qjw CEL6A (Y169F) WITH A NON-HYDROLYSABLE CELLOTETRAOSE
1qk0 CEL6A (Y169F) WITH A NON-HYDROLYSABLE CELLOTETRAOSE
1qk2 WILD TYPE CEL6A WITH A NON-HYDROLYSABLE CELLOTETRAOSE
2bvw CELLOBIOHYDROLASE II (CEL6A) FROM HUMICOLA INSOLENS IN COMPLEX WITH GLUCOSE AND CELLOTETRAOSE