PDBsum entry: 1k9t

Hydrolase

PDB id

1k9t

Contents

			Protein chain

					538 a.a. *

			Ligands

					NAG-NAG-NAG-NAG

			Waters ×761

* Residue conservation analysis

PDB id:

1k9t

Links
- PDBe
- RCSB
- SRS
- MMDB
- JenaLib
- OCA
- PDBWiki
- Proteopedia
- CATH
- SCOP
- FSSP
- HSSP
- PDBSWS
- PQS
- CSA
- PROCOGNATE
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- Whatcheck

Name:

Hydrolase

Title:

Chitinase a complexed with tetra-n-acetylchitotriose

Structure:

Chitinase a. Chain: a. Engineered: yes. Mutation: yes

Source:

Serratia marcescens. Gene: chia. Expressed in: escherichia coli.

Biol. unit:

Dimer (from PQS)

Resolution:

1.80Å

R-factor:

0.189

R-free:

0.221

Authors:

G.Prag,P.A.Tucker,A.B.Oppenheim

Key ref:

G.Prag et al. Complex structures of chitinase a mutant with oligonag provide insight into the enzymatic mechanism. To be published,

Date:

30-Oct-01

Release date:

06-Nov-02

PROCHECK

	Headers

	References

Protein chain

P07254 (CHIA_SERMA) - Chitinase A

Seq: Struc:

Seq: Struc:					563 a.a. 538 a.a.*

Key:

PfamA domain

Secondary structure

CATH domain

* PDB and UniProt seqs differ at 7 residue positions (black crosses)



		Enzyme reactions

Enzyme class:

E.C.3.2.1.14 - Chitinase.

[IntEnz] [ExPASy] [KEGG] [BRENDA]

Reaction:

Hydrolysis of the 1,4-beta-linkages of N-acetyl-D-glucosamine polymers of chitin.



		Gene Ontology (GO) functional annotation

Biological process	metabolic process	4 terms
Biochemical function	catalytic activity	6 terms