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(-) Description

Title :  CRYSTAL STRUCTURE AND ENZYMATIC PROPERTIES OF A BACTERIAL FAMILY 19 CHITINASE REVEAL DIFFERENCES WITH PLANT ENZYMES
 
Authors :  I. A. Hoell, B. Dalhus, E. B. Heggset, S. I. Aspmo, V. G. H. Eijsink
Date :  04 Apr 06  (Deposition) - 04 Oct 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Hydrolase, Plant Enzymes (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  I. A. Hoell, B. Dalhus, E. B. Heggset, S. I. Aspmo, V. G. H. Eijsink
Crystal Structure And Enzymatic Properties Of A Bacterial Family 19 Chitinase Reveal Differences With Plant Enzymes
Febs J. V. 273 4889 2006
PubMed-ID: 17010167  |  Reference-DOI: 10.1111/J.1742-4658.2006.05487.X

(-) Compounds

Molecule 1 - SECRETED CHITINASE
    Chains: A, B
    EC Number: 3.2.1.14
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PETM11
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Fragment: RESIDUES 41-244
    Organism Scientific: STREPTOMYCES COELICOLOR
    Organism Taxid: 1902
    Strain: A3 (2)
    Synonym: CHITINASE G

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (1x): A 
Biological Unit 2 (1x):  B

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 4)
No.NameCountTypeFull Name
1ZN4Ligand/IonZINC ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:184 , HOH A:2175 , HOH A:2176BINDING SITE FOR RESIDUE ZN A1216
2AC2SOFTWAREHIS A:67 , GLU A:182 , HOH A:2177 , HOH A:2178BINDING SITE FOR RESIDUE ZN A1217
3AC3SOFTWAREASP B:137 , HOH B:2127 , HOH B:2128BINDING SITE FOR RESIDUE ZN B1216
4AC4SOFTWAREHIS B:67 , GLU B:182 , HOH B:2130 , HOH B:2131BINDING SITE FOR RESIDUE ZN B1217

(-) SS Bonds  (4, 4)

Asymmetric Unit
No.Residues
1A:87 -A:95
2A:183 -A:215
3B:87 -B:95
4B:183 -B:215

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2CJL)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2CJL)

(-) Exons   (0, 0)

(no "Exon" information available for 2CJL)

(-) 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:204
 aligned with Q8CK55_STRCO | Q8CK55 from UniProtKB/TrEMBL  Length:244

    Alignment length:204
                                    50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240    
         Q8CK55_STRCO    41 FVVSEAQFDQMFPSRNSFYTYSGLTAALSAYPGFSNTGSDTVKKQEAAAFLANVGHETGGLVYVVEQNTANYPHYCDASQPYGCPAGNDKYYGRGPVQLSWNFNYKAAGDALGIDLLNNPDLVQNDSAVAWKTGLWYWNTQTGPGTMTPHDAMVNGAGFGETIRSINGSLECDGGNPGQVQSRIDNYERFTQLLGVEPGGNLSC 244
               SCOP domains d2cjla_ A: automated matches                                                                                                                                                                                 SCOP domains
               CATH domains ----------------------------------------------------------------2cjlA02 A:76-136 Endochitinase, domain 2                     ------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhhhhh.......hhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhh........hhhhhhhhh........................hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhh......hhhhhhhh..hhhhhhhhh.........hhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2cjl A  12 FVVSEAQFDQMFPSRNSFYTYSGLTAALSAYPGFSNTGSDTVKKQEAAAFLANVGHETGGLVYVVEQNTANYPHYCDASQPYGCPAGNDKYYGRGPVQLSWNFNYKAAGDALGIDLLNNPDLVQNDSAVAWKTGLWYWNTQTGPGTMTPHDAMVNGAGFGETIRSINGSLECDGGNPGQVQSRIDNYERFTQLLGVEPGGNLSC 215
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211    


Chain B from PDB  Type:PROTEIN  Length:204
 aligned with Q8CK55_STRCO | Q8CK55 from UniProtKB/TrEMBL  Length:244

    Alignment length:204
                                    50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240    
         Q8CK55_STRCO    41 FVVSEAQFDQMFPSRNSFYTYSGLTAALSAYPGFSNTGSDTVKKQEAAAFLANVGHETGGLVYVVEQNTANYPHYCDASQPYGCPAGNDKYYGRGPVQLSWNFNYKAAGDALGIDLLNNPDLVQNDSAVAWKTGLWYWNTQTGPGTMTPHDAMVNGAGFGETIRSINGSLECDGGNPGQVQSRIDNYERFTQLLGVEPGGNLSC 244
               SCOP domains d2cjlb_ B: automated matches                                                                                                                                                                                 SCOP domains
               CATH domains ----------------------------------------------------------------2cjlB02 B:76-136 Endochitinase, domain 2                     ------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhhhhh.......hhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhh........hhhhhhhhh........................hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhh......hhhhhhhh..hhhhhhhhh.........hhhhhhhhhhhhhhhhhhh.......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2cjl B  12 FVVSEAQFDQMFPSRNSFYTYSGLTAALSAYPGFSNTGSDTVKKQEAAAFLANVGHETGGLVYVVEQNTANYPHYCDASQPYGCPAGNDKYYGRGPVQLSWNFNYKAAGDALGIDLLNNPDLVQNDSAVAWKTGLWYWNTQTGPGTMTPHDAMVNGAGFGETIRSINGSLECDGGNPGQVQSRIDNYERFTQLLGVEPGGNLSC 215
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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, 2)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (4, 4)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q8CK55_STRCO | Q8CK55)
molecular function
    GO:0004568    chitinase activity    Catalysis of the hydrolysis of (1->4)-beta linkages of N-acetyl-D-glucosamine (GlcNAc) polymers of chitin and chitodextrins.
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:0016998    cell wall macromolecule catabolic process    The chemical reactions and pathways resulting in the breakdown of macromolecules that form part of a cell wall.
    GO:0006032    chitin catabolic process    The chemical reactions and pathways resulting in the breakdown of chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.

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