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Title :   STRUCTURE OF THE CHITINASE FROM JACK BEAN

Authors :   M. Hahn, M. Hennig, B. Schlesier, W. Hohne

Date :   10 Jan 00 (Deposition) - 29 Aug 00 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.80

Chains :   Asym./Biol. Unit : A

Keywords :   Hydrolase, Family 19 Glycosidase, Alpha Helical Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Hahn, M. Hennig, B. Schlesier, W. Hohne
Structure Of Jack Bean Chitinase
Acta Crystallogr. , Sect. D V. 56 1096 2000
PubMed-ID: 10957628 | Reference-DOI: 10.1107/S090744490000857X
(for further references see the PDB file header)

Molecule 1 - CLASS II CHITINASE
	Chains	:	A
	EC Number	:	3.2.1.14
	Organ	:	SEED
	Organism Common	:	JACK BEAN
	Organism Scientific	:	CANAVALIA ENSIFORMIS
	Organism Taxid	:	3823

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (1, 1)

No.	Name	Count	Type	Full Name
1	SO4	1	Ligand/Ion	SULFATE ION

Asymmetric Unit (1, 1)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ARG A:19 , SER A:31 , TYR A:32 , ASN A:52 , HOH A:2026 , HOH A:2155 , HOH A:2166	BINDING SITE FOR RESIDUE SO4 A1244

Asymmetric/Biological Unit

No.	Residues
1	A:24	-	A:86
2	A:98	-	A:104
3	A:203	-	A:235

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

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

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

(no "Exon" information available for 1DXJ)

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:242
 aligned with O81934_CANEN | O81934 from UniProtKB/TrEMBL  Length:270

    Alignment length:242
                                    38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268  
         O81934_CANEN    29 DVGSVIDASLFDQLLKHRNDPACEGKGFYSYNAFVTAARSFGGFGTTGDTNTRKREVAAFLAQTSHETTGGAAGSPDGPYAWGYCFVTERDKSNKYCDPGTPCPAGKSYYGRGPIQLTHNYNYAQAGRALGVDLINNPDLVARDAVISFKTAIWFWMTPQGNKPSCHDVITNRWTPSAADVAANRTPGFGVITNIINGGIECGRGPSPASGDRIGFYKRYCDVLHLSYGPNLNCRDQRPFGG 270
               SCOP domains d1dxja_ A: Plant class II chitinase                                                                                                                                                                                                                SCOP domains
               CATH domains 1dxjA01 A:2-88,A:145-242  [code=1.10.530.10, no name defined]                          1dxjA02 A:89-144 Endochitinase, domain 2                1dxjA01 A:2-88,A:145-242  [code=1.10.530.10, no name defined]                                     - CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhh.hhhhhhhhh..............hhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhh.........hhhhh....................................hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhh......hhhhhhh.....hhhhhhh....hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh................. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1dxj A   2 DVGSVIDASLFDQLLKHRNDPACEGKGFYSYNAFVTAARSFGGFGTTGDTNTRKREVAAFLAQTSHETTGGAAGSPDGPYAWGYCFVTERDKSNKYCDPGTPCPAGKSYYGRGPIQLTHNYNYAQAGRALGVDLINNPDLVARDAVISFKTAIWFWMTPQGNKPSCHDVITNRWTPSAADVAANRTPGFGVITNIINGGIECGRGPSPASGDRIGFYKRYCDVLHLSYGPNLNCRDQRPFGG 243
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241

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 '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

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

Fold: Lysozyme-like (1361)

Superfamily: Lysozyme-like (1361)

Family: Family 19 glycosidase (12)

Protein domain: Plant class II chitinase (3)

Jack bean (Canavalia ensiformis) [TaxId: 3823] (1)

d1dxja_

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Endochitinase; domain 2 (16)

Homologous Superfamily: Endochitinase, domain 2 (16)

Jack bean (Canavalia ensiformis) (1)

1dxjA02

A:89-144

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Lysozyme (1131)

Homologous Superfamily: [code=1.10.530.10, no name defined] (605)

Jack bean (Canavalia ensiformis) (1)

1dxjA01

A:2-88,A:145-242

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

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (O81934_CANEN | O81934)

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.

Asymmetric/Biological Unit
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1cns	CRYSTAL STRUCTURE OF CHITINASE AT 1.91A RESOLUTION (ENDOCHITINASE 2, EC 3.2.1.14)
1ctn	CHITINASE A (E.C.3.2.1.14) (PH 5.5, 4 DEGREES C) FROM SERRATIA MARCESCENS
1d2k	C. IMMITIS CHITINASE 1 AT 2. 2 ANGSTROMS RESOLUTION

Description

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