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(-) Description

Title :  CRYSTAL STRUCTURE OF A FAMILY GH19 CHITINASE FROM BRYUM CORONATUM IN COMPLEX WITH (GLCNAC)4 AT 1.0 A RESOLUTION
 
Authors :  T. Numata, N. Umemoto, T. Ohnuma, T. Fukamizo
Date :  21 Aug 13  (Deposition) - 26 Mar 14  (Release) - 26 Mar 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Chitinase, Hydrolase, Carbohydrate (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. Ohnuma, N. Umemoto, T. Nagata, S. Shinya, T. Numata, T. Taira, T. Fukamizo
Crystal Structure Of A "Loopless" Gh19 Chitinase In Complex With Chitin Tetrasaccharide Spanning The Catalytic Center
Biochim. Biophys. Acta 2014
PubMed-ID: 24582745  |  Reference-DOI: 10.1016/J.BBAPAP.2014.02.013

(-) Compounds

Molecule 1 - CHITINASE A
    Chains: A
    EC Number: 3.2.1.14
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-22B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: UNP RESIDUES 24-228
    Gene: BCCHIA
    Mutation: YES
    Organism Scientific: BRYUM CORONATUM
    Organism Taxid: 216087

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 8)

Asymmetric/Biological Unit (2, 8)
No.NameCountTypeFull Name
1EDO4Ligand/Ion1,2-ETHANEDIOL
2NAG4Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREALA A:10 , ARG A:49 , PRO A:154 , ASP A:198 , HOH A:418 , HOH A:460 , HOH A:611BINDING SITE FOR RESIDUE EDO A 305
2AC2SOFTWAREALA A:10 , ALA A:89 , SER A:152 , HOH A:419 , HOH A:542 , HOH A:573 , HOH A:582BINDING SITE FOR RESIDUE EDO A 306
3AC3SOFTWAREASP A:45 , ASP A:79 , THR A:80 , SER A:82 , THR A:83 , PRO A:86 , CYS A:87 , GLY A:196 , HOH A:481BINDING SITE FOR RESIDUE EDO A 307
4AC4SOFTWAREARG A:19 , PRO A:21 , THR A:24 , ASP A:79 , TYR A:105 , HOH A:451 , HOH A:462 , HOH A:565BINDING SITE FOR RESIDUE EDO A 308
5AC5SOFTWAREGLN A:60 , ALA A:61 , GLY A:63 , PHE A:67 , GLU A:70 , GLN A:71 , ILE A:99 , GLN A:100 , LEU A:101 , SER A:102 , TRP A:103 , ASN A:106 , PHE A:139 , ILE A:163 , ASN A:164 , LEU A:167 , GLU A:168 , GLN A:180 , ASN A:183 , HOH A:412 , HOH A:420 , HOH A:449 , HOH A:458 , HOH A:475 , HOH A:480 , HOH A:508 , HOH A:519 , HOH A:538 , HOH A:540 , HOH A:543 , HOH A:561BINDING SITE FOR CHAIN A OF POLYSACCHARIDE RESIDUES 301 TO 304

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:78 -A:87
2A:169 -A:205

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Ser A:152 -Pro A:153

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3WH1)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3WH1)

(-) Exons   (0, 0)

(no "Exon" information available for 3WH1)

(-) 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:203
 aligned with A9ZSX9_9BRYO | A9ZSX9 from UniProtKB/TrEMBL  Length:228

    Alignment length:204
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224    
         A9ZSX9_9BRYO    25 SWTSFVTPAVFEGWFPNRNPFYTYDGLVSASNGYPEFGTTGSLDDQKRELAAFLGNINQESGGLQFIQEQNPQSDYCDTSSTQYPCAAGKQYYGRGPIQLSWNYNYGEAGADLGLDLLNNPDLVAQDSTVAWRTALWFWMKRDCHGAITASPPSFSGTIRIINGGLECNQPAGSIGNMQMENRVTYYTQFCQTLGVDPGTDLRC 228
               SCOP domains d3wh1a_ A: automated matches                                                                                                                                                                                 SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhh.hhhhhhhhh.......hhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhh..........-............................hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3wh1 A   2 SWTSFVTPAVFEGWFPNRNPFYTYDGLVSASNGYPEFGTTGSLDDQKRELAAFLGNINQASGGLQFIQEQNP-SDYCDTSSTQYPCAAGKQYYGRGPIQLSWNYNYGEAGADLGLDLLNNPDLVAQDSTVAWRTALWFWMKRDCHGAITASPPSFSGTIRIINGGLECNQPAGSIGNMQMENRVTYYTQFCQTLGVDPGTDLRC 205
                                    11        21        31        41        51        61        71 | |    81        91       101       111       121       131       141       151       161       171       181       191       201    
                                                                                                  73 |                                                                                                                                  
                                                                                                    75
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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) (23004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3WH1)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3WH1)

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (A9ZSX9_9BRYO | A9ZSX9)
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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    Ser A:152 - Pro A:153   [ RasMol ]  
 

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 Related Entries

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

UniProtKB/TrEMBL
        A9ZSX9_9BRYO | A9ZSX9: 4ij4

(-) Related Entries Specified in the PDB File

4ij4