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(-) Description

Title :  HUMICOLA INSOLENS ENDOCELLULASE CEL7B (EG 1) E197A MUTANT
 
Authors :  G. J. Davies, O. Moraz, H. Driguez, M. Schulein
Date :  03 Feb 00  (Deposition) - 04 Feb 00  (Release) - 29 Jan 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.75
Chains :  Asym./Biol. Unit :  A
Keywords :  Endoglucanase, Cellulose Degradation, Hydrolase, Glycosidase, Glycoprotein, Glycosynthase, Glycoside Hydrolase Family 7 (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. F. Mackenzie, G. Sulzenbacher, C. Divne, T. A. Jones, H. F. Woldike, M. Schulein, S. G. Withers, G. J. Davies
Crystal Structure Of The Family 7 Endoglucanase I (Cel7B) From Humicola Insolens At 2. 2 A Resolution And Identification Of The Catalytic Nucleophile By Trapping Of The Covalent Glycosyl-Enzyme Intermediate.
Biochem. J. V. 335 409 1998
PubMed-ID: 9761741
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ENDOGLUCANASE I
    Chains: A
    EC Number: 3.2.1.4
    Engineered: YES
    Expression System: ASPERGILLUS ORYZAE
    Expression System Taxid: 5062
    Mutation: YES
    Organism Scientific: HUMICOLA INSOLENS
    Organism Taxid: 34413
    Other Details: PYROGLUTAMATE POST-TRANSLATIONAL MODIFICATION AT RESIDUE 1, N-LINKED N-ACETYLGLUCOSAMINE ON RESIDUE ASNS 89 AND 247
    Synonym: CELLULASE, FAMILY 7 ENDOGLUCANASE, ENDO-1,4-BETA-GLUCANASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric/Biological Unit (2, 3)
No.NameCountTypeFull Name
1NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
2PCA1Mod. Amino AcidPYROGLUTAMIC ACID

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASN A:89 , HOH A:2590 , HOH A:2592 , HOH A:2593 , HOH A:2594 , HOH A:2595BINDING SITE FOR MONO-SACCHARIDE NAG A 801 BOUND TO ASN A 89
2AC2SOFTWAREASN A:247 , ASN A:300 , LYS A:301 , GLU A:302 , HOH A:2588BINDING SITE FOR MONO-SACCHARIDE NAG A 800 BOUND TO ASN A 247

(-) SS Bonds  (9, 9)

Asymmetric/Biological Unit
No.Residues
1A:18 -A:24
2A:51 -A:73
3A:63 -A:69
4A:140 -A:365
5A:172 -A:195
6A:176 -A:194
7A:215 -A:234
8A:223 -A:228
9A:239 -A:315

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1DYM)

(-) Exons   (0, 0)

(no "Exon" information available for 1DYM)

(-) 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:398
 aligned with GUN1_HUMIN | P56680 from UniProtKB/Swiss-Prot  Length:402

    Alignment length:398
                                    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       300       310       320       330       340       350       360       370       380       390        
           GUN1_HUMIN     1 QKPGETKEVHPQLTTFRCTKRGGCKPATNFIVLDSLSHPIHRAEGLGPGGCGDWGNPPPKDVCPDVESCAKNCIMEGIPDYSQYGVTTNGTSLRLQHILPDGRVPSPRVYLLDKTKRRYEMLHLTGFEFTFDVDATKLPCGMNSALYLSEMHPTGAKSKYNPGGAYYGTGYCDAQCFVTPFINGLGNIEGKGSCCNEMDIWEANSRASHVAPHTCNKKGLYLCEGEECAFEGVCDKNGCGWNNYRVNVTDYYGRGEEFKVNTLKPFTVVTQFLANRRGKLEKIHRFYVQDGKVIESFYTNKEGVPYTNMIDDEFCEATGSRKYMELGATQGMGEALTRGMVLAMSIWWDQGGNMEWLDHGEAGPCAKGEGAPSNIVQVEPFPEVTYTNLRWGEIGSTY 398
               SCOP domains d1dyma_ A: Cellobiohydrolase I (cellulase, Endoglucanase I, CBH1)                                                                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains -1dymA00 A:2-398 1,4-Beta-D-Glucan Cellobiohydrolase I, subunit A                                                                                                                                                                                                                                                                                                                                              CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eeeeeeee...eeeeeeeeeee.hhhh.eee......................hhhhhhhheee....hhhhh.eeee..eeeee...........eeeee...............eeeeeee........eeeeeee.............hhhhhh........ee..ee..ee.....eee..eeeeeee....eeeeee.......eeehhhhhh............hhhhhh....ee......ee....eeeeeeeee.....eeeeeeeeee..eee................hhhhhhhh.hhhhhhhhhhhhhhhhhhhh.eeeeeee......hhhhhhhhhh.......hhhhhhhhh...eeeeeeeeee...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1dym A   1 xKPGETKEVHPQLTTFRCTKRGGCKPATNFIVLDSLSHPIHRAEGLGPGGCGDWGNPPPKDVCPDVESCAKNCIMEGIPDYSQYGVTTNGTSLRLQHILPDGRVPSPRVYLLDKTKRRYEMLHLTGFEFTFDVDATKLPCGMNSALYLSEMHPTGAKSKYNPGGAYYGTGYCDAQCFVTPFINGLGNIEGKGSCCNAMDIWEANSRASHVAPHTCNKKGLYLCEGEECAFEGVCDKNGCGWNNYRVNVTDYYGRGEEFKVNTLKPFTVVTQFLANRRGKLEKIHRFYVQDGKVIESFYTNKEGVPYTNMIDDEFCEATGSRKYMELGATQGMGEALTRGMVLAMSIWWDQGGNMEWLDHGEAGPCAKGEGAPSNIVQVEPFPEVTYTNLRWGEIGSTY 398
                            |       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       300       310       320       330       340       350       360       370       380       390        
                            |                                                                                                                                                                                                                                                                                                                                                                                                             
                            1-PCA
   Legend:   → Mismatch (orange background)
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  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, 1)

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

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (GUN1_HUMIN | P56680)
molecular function
    GO:0008810    cellulase activity    Catalysis of the endohydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose, lichenin and cereal beta-D-glucans.
    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
        GUN1_HUMIN | P56680: 1a39 1oji 1ojj 1ojk 2a39

(-) Related Entries Specified in the PDB File

1a39 HUMICOLA INSOLENS ENDOCELLULASE EGI S37W, P39W DOUBLE-MUTANT
2a39 HUMICOLA INSOLENS ENDOCELLULASE EGI NATIVE STRUCTURE