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(-) Description

Title :  CELLOBIOHYDROLASE II (CEL6A) FROM HUMICOLA INSOLENS IN COMPLEX WITH GLUCOSE AND CELLOTETRAOSE
 
Authors :  A. Varrot, G. J. Davies, M. Schulein
Date :  18 Feb 99  (Deposition) - 25 Feb 00  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Hydrolase, Cellulose Degradation, Cellobiohydrolase, Cellulase, Glycoside Hydrolase Family 6 (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. Varrot, M. Schulein, G. J. Davies
Structural Changes Of The Active Site Tunnel Of Humicola Insolens Cellobiohydrolase, Cel6A, Upon Oligosaccharide Binding.
Biochemistry V. 38 8884 1999
PubMed-ID: 10413461  |  Reference-DOI: 10.1021/BI9903998

(-) Compounds

Molecule 1 - CELLOBIOHYDROLASE II
    ChainsA, B
    EC Number3.2.1.91
    EngineeredYES
    Expression SystemASPERGILLUS ORYZAE
    Expression System PlasmidUNDER CONTROL OF THE FUNGAL AMYLASE PROMOTER AND AMYLOGLUCOSIDASE TERMINATOR
    Expression System Taxid5062
    Expression System Vector TypeFUNGAL
    FragmentCATALYTIC CORE DOMAIN
    Organism ScientificHUMICOLA INSOLENS
    Organism Taxid34413
    Other DetailsN-LINKED N-ACETYLGLUCOSAMINE ON RESIDUE ASN 141
    Other Details - SourceFULL-LENGTH ENZYME OVER-EXPRESSED
    SynonymCELLULASE, CEL6A

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 13)

Asymmetric/Biological Unit (5, 13)
No.NameCountTypeFull Name
1BGC2Ligand/IonBETA-D-GLUCOSE
2CTR1Ligand/IonCELLOTRIOSE
3CTT1Ligand/IonBETA-D-GLUCOPYRANOSYL-(1->4)-BETA-D-GLUCOPYRANOSYL-(1->4)-BETA-D-GLUCOPYRANOSYL-(1->4)-BETA-D-GLUCOPYRANOSE
4GOL7Ligand/IonGLYCEROL
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (12, 12)

Asymmetric Unit (12, 12)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASN A:141 , ASP A:145 , ASN A:199 , HOH A:657 , HOH A:675 , HOH A:695 , HOH A:893BINDING SITE FOR RESIDUE NAG A 500
02AC2SOFTWARETRP A:137 , ASP A:139 , SER A:186 , LYS A:399 , PRO A:400 , GLU A:403 , GLY A:432 , HOH A:619 , HOH A:630 , HOH A:684 , HOH A:690BINDING SITE FOR RESIDUE BGC A 602
03AC3SOFTWAREASP A:180 , ASP A:226 , THR A:233 , ASN A:234 , HIS A:271 , GLY A:273 , TRP A:274 , TRP A:277 , ALA A:279 , ASN A:280 , ASN A:310 , TRP A:371 , HOH A:636 , HOH A:646 , HOH A:655 , HOH A:659 , HOH A:696 , HOH A:703 , HOH A:707 , HOH A:782 , HOH A:803BINDING SITE FOR RESIDUE CTT A 600
04AC4SOFTWAREVAL A:316 , SER A:317 , SER A:318 , PRO A:320 , HOH A:857 , HOH A:924BINDING SITE FOR RESIDUE GOL A 604
05AC5SOFTWARETRP A:100 , ALA A:101 , ARG A:106 , HOH A:649 , HOH A:715 , HIS B:110 , ILE B:114BINDING SITE FOR RESIDUE GOL A 605
06AC6SOFTWAREHIS A:110 , HOH A:629 , HOH A:709 , ALA B:101 , ARG B:106 , GLU B:131 , HOH B:747BINDING SITE FOR RESIDUE GOL A 606
07AC7SOFTWAREGLY A:91 , ASN A:92 , PRO A:93 , ARG A:218 , ASN B:159 , GLN B:160 , GLY B:162 , HOH B:781BINDING SITE FOR RESIDUE GOL A 609
08AC8SOFTWARETYR A:415 , ASP A:416 , TYR A:417BINDING SITE FOR RESIDUE GOL A 610
09AC9SOFTWAREASP B:119 , PRO B:120 , ASN B:141 , ASP B:145 , ASN B:199 , HOH B:684 , HOH B:700 , HOH B:733 , HOH B:857BINDING SITE FOR RESIDUE NAG B 500
10BC1SOFTWARETRP B:137 , ASP B:139 , SER B:186 , LYS B:399 , PRO B:400 , GLU B:403 , ALA B:431 , GLY B:432 , HOH B:631 , HOH B:647 , HOH B:661 , HOH B:663BINDING SITE FOR RESIDUE BGC B 603
11BC2SOFTWAREASP B:180 , ASP B:226 , THR B:233 , ASN B:234 , HIS B:271 , GLY B:273 , TRP B:274 , ASN B:280 , ASN B:310 , GLY B:369 , TRP B:371 , HOH B:610 , HOH B:626 , HOH B:649 , HOH B:667 , HOH B:685 , HOH B:689 , HOH B:868BINDING SITE FOR RESIDUE CTR B 601
12BC3SOFTWAREARG B:206 , SER B:213 , HOH B:855BINDING SITE FOR RESIDUE GOL B 608

(-) SS Bonds  (4, 4)

Asymmetric/Biological Unit
No.Residues
1A:181 -A:240
2A:372 -A:419
3B:181 -B:240
4B:372 -B:419

(-) Cis Peptide Bonds  (10, 10)

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
6Asn B:164 -Pro B:165
7Ser B:324 -Pro B:325
8Gln B:361 -Pro B:362
9Lys B:426 -Pro B:427
10Asn B:447 -Pro B:448

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2BVW)

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GLYCOSYL_HYDROL_F6_1PS00655 Glycosyl hydrolases family 6 signature 1.GUX6_HUMIN198-214
 
  2A:172-188
B:172-188
2GLYCOSYL_HYDROL_F6_2PS00656 Glycosyl hydrolases family 6 signature 2.GUX6_HUMIN246-255
 
  2A:220-229
B:220-229

(-) Exons   (0, 0)

(no "Exon" information available for 2BVW)

(-) 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:361
 aligned with GUX6_HUMIN | Q9C1S9 from UniProtKB/Swiss-Prot  Length:476

    Alignment length:361
                                   125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355       365       375       385       395       405       415       425       435       445       455       465       475 
           GUX6_HUMIN   116 NGNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVETLSEIRAANQAGANPPYAAQIVVYDLPDRDCAAAASNGEWAIANNGANNYKGYINRIREILISFSDVRTILVIEPDSLANMVTNMNVAKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSISSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYDYHCGLEDALKPAPEAGQWFQAYFEQLLRNANPPF 476
               SCOP domains d2bvwa_ A: Cellobiohydrolase II (Cel6)                                                                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains 2bvwA00 A:90-450 7-stranded glycosidases (cellulases)                                                                                                                                                                                                                                                                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............hhhhhhhhhh.hhh...hhhhhhhhhhhh....eee..hhhhh.hhhhhhhhhhhhhh........eeeee..................hhh.hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhh....hhhhhhhhhhhhhhhhhhhh.....eeeeee.........hhhhhhhhhhhhhhhhh......eeeeee..............hhh.......hhhhhhhhhhhhhhh....eeeee.....................................eeeee....................hhhh...............hhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------GLYCOSYL_HYDROL_F-------------------------------GLYCOSYL_H----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bvw A  90 NGNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVQTLSEIREANQAGANPQYAAQIVVYDLPDRDCAAAASNGEWAIANNGVNNYKAYINRIREILISFSDVRTILVIEPDSLANMVTNMNVPKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSVSSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYDYHCGLEDALKPAPEAGQWFNEYFIQLLRNANPPF 450
                                    99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449 

Chain B from PDB  Type:PROTEIN  Length:360
 aligned with GUX6_HUMIN | Q9C1S9 from UniProtKB/Swiss-Prot  Length:476

    Alignment length:360
                                   126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476
           GUX6_HUMIN   117 GNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVETLSEIRAANQAGANPPYAAQIVVYDLPDRDCAAAASNGEWAIANNGANNYKGYINRIREILISFSDVRTILVIEPDSLANMVTNMNVAKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSISSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYDYHCGLEDALKPAPEAGQWFQAYFEQLLRNANPPF 476
               SCOP domains d2bvwb_ B: Cellobiohydrolase II (Cel6)                                                                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 2bvwB00 B:91-450 7-stranded glycosidases (cellulases)                                                                                                                                                                                                                                                                                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ............hhhhhhhhh..hhh...hhhhhhhhhhhh....eee..hhh...hhhhhhhhhhhhhh........eeeee..................hhh.hhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhh....hhhhhhhhhhhhhhhhhhhh.....eeeeee.........hhhhhhhhhhhhhhhhh......eeeeee..............hhh.......hhhhhhhhhhhhhhh....eeeee.....................................eeeee....................hhhh...............hhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------GLYCOSYL_HYDROL_F-------------------------------GLYCOSYL_H----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2bvw B  91 GNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVQTLSEIREANQAGANPQYAAQIVVYDLPDRDCAAAASNGEWAIANNGVNNYKAYINRIREILISFSDVRTILVIEPDSLANMVTNMNVPKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSVSSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYDYHCGLEDALKPAPEAGQWFNEYFIQLLRNANPPF 450
                                   100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450

   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, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2BVW)

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (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

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        GUX6_HUMIN | Q9C1S91bvw 1gz1 1oc5 1oc6 1oc7 1ocb 1ocj 1ocn 4i5r 4i5u

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