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(-) Description

Title :  CRYSTAL STRUCTURE OF THE CELLULASE CEL9M OF C. CELLULOLYTICUM
 
Authors :  G. Parsiegla, A. Belaich, J. P. Belaich, R. Haser
Date :  22 Mar 01  (Deposition) - 30 Oct 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym./Biol. Unit :  A
Keywords :  Cellullase, Alpha Barrel, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Parsiegla, A. Belaich, J. P. Belaich, R. Haser
Crystal Structure Of The Cellulase Cel9M Enlightens Structure/Function Relationships Of The Variable Catalytic Modules In Glycoside Hydrolases.
Biochemistry V. 41 11134 2002
PubMed-ID: 12220178  |  Reference-DOI: 10.1021/BI025816M
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CELLULASE CEL9M
    Chains: A
    EC Number: 3.2.1.4
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: CATALYTIC MODULE
    Organism Scientific: CLOSTRIDIUM CELLULOLYTICUM
    Organism Taxid: 1521

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (4, 4)
No.NameCountTypeFull Name
1CA1Ligand/IonCALCIUM ION
2NI1Ligand/IonNICKEL (II) ION
3SO41Ligand/IonSULFATE ION
4ZN1Ligand/IonZINC ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:208 , ASP A:211 , ASP A:212 , ASP A:257 , HOH A:1282 , HOH A:1287BINDING SITE FOR RESIDUE CA A 1263
2AC2SOFTWARECYS A:22 , CYS A:38 , HIS A:39 , HIS A:55BINDING SITE FOR RESIDUE ZN A 1264
3AC3SOFTWAREALA A:1 , HIS A:4 , ASP A:343 , HOH A:1497BINDING SITE FOR RESIDUE NI A 1265
4AC4SOFTWARETRP A:256 , TRP A:304 , ARG A:308 , HOH A:1289 , HOH A:1488BINDING SITE FOR RESIDUE SO4 A 1266

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1IA6)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1IA6)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1IA6)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1IA6)

(-) Exons   (0, 0)

(no "Exon" information available for 1IA6)

(-) 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:423
 aligned with Q9EYQ2_9FIRM | Q9EYQ2 from UniProtKB/TrEMBL  Length:526

    Alignment length:431
                                    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       400       410       420       430       440       450       460 
         Q9EYQ2_9FIRM    31 AGTHDYSTALKDSIIFFDANKCGPQAGENNVFDWRGACHTTDGSDVGVDLTGGYHDAGDHVKFGLPQGYSAAILGWSLYEFKESFDATGNTTKMLQQLKYFTDYFLKSHPNSTTFYYQVGEGNADHTYWGAPEEQTGQRPSLYKADPSSPASDILSETSAALTLMYLNYKNIDSAYATKCLNAAKELYAMGKANQGVGNGQSFYQATSFGDDLAWAATWLYTATNDSTYITDAEQFITLGNTMNENKMQDKWTMCWDDMYVPAALRLAQITGKQIYKDAIEINFNYWKTQVTTTPGGLKWLSNWGVLRYAAAESMVMLVYCKQNPDQSLLDLAKKQVDYILGDNPANMSYIIGYGSNWCIHPHHRAANGYTYANGDNAKPAKHLLTGALVGGPDQNDKFLDDANQYQYTEVALDYNAGLVGVLAGAIKFFG 461
               SCOP domains d1ia6a_ A: Nonprocessive cellulase Cel9M                                                                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1ia6A00 A:1-431  [code=1.50.10.10, no name defined]                                                                                                                                                                                                                                                                                                                                                                                             CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhh.........................................eehhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh......eeeee.hhhhhh....hhhhh.......eee.....hhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhh.hhhhhhhhhhhhh------hhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..............hhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhh.....................hhhhhh....--.............................hhhhhh.hhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ia6 A   1 AGTHDYSTALKDSIIFFDANKCGPQAGENNVFDWRGACHTTDGSDVGVDLTGGYHDAGDHVKFGLPQGYSAAILGWSLYEFKESFDATGNTTKMLQQLKYFTDYFLKSHPNSTTFYYQVGEGNADHTYWGAPEEQTGQRPSLYKADPSSPASDILSETSAALTLMYLNYKNIDSAYATKCLNAAKELYAMGKANQGVGNGQSFYQATSFGDDLAWAATWLYTATNDSTYITDAEQFITL------NKMQDKWTMCWDDMYVPAALRLAQITGKQIYKDAIEFNFNYWKTQVTTTPGGLKWLSNWGVLRYAAAESMVMLVYCKQNPDQSLLDLAKKQVDYILGDNPANMSYIIGYGSNWCIHPHHRAANGYTYA--DNAKPAKHLLTGALVGGPDQNDKFLDDANQYQYTEVALDYNAGLVGVLAGAIKFFG 431
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230        |-     | 250       260       270       280       290       300       310       320       330       340       350       360       370  |  | 380       390       400       410       420       430 
                                                                                                                                                                                                                                                                        239    246                                                                                                                            373  |                                                       
                                                                                                                                                                                                                                                                                                                                                                                                                 376
   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: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1IA6)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (Q9EYQ2_9FIRM | Q9EYQ2)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    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.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
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: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.

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  3.2.1.4
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 Related Entries

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

UniProtKB/TrEMBL
        Q9EYQ2_9FIRM | Q9EYQ2: 1ia7

(-) Related Entries Specified in the PDB File

1clc CELLULASE OF GH FAMILY 9
1ia7 CELLULASE CEL9M OF C. CELLULOLYTICUM IN COMPLEX WITH CELLOBIOSE
1js4 CELLULASE OF GH FAMILY 9