PDBsum entry: 1ub2

Oxidoreductase

PDB id

1ub2

Contents

			Protein chain

					700 a.a. *

			Ligands

					HEM

			Waters ×703

* Residue conservation analysis

PDB id:

1ub2

Links
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Name:

Oxidoreductase

Title:

Crystal structure of catalase-peroxidase from synechococcus

Structure:

Catalase-peroxidase. Chain: a. Engineered: yes

Source:

Synechococcus elongatus. Organism_taxid: 1140. Strain: pcc 7942. Expressed in: escherichia coli. Expression_system_taxid: 562.

Biol. unit:

Dimer (from PDB file)

Resolution:

2.40Å

R-factor:

0.199

R-free:

0.232

Authors:

K.Wada,T.Tada

Key ref:

K.Wada and t.tada Crystal structure of catalase-Peroxidase from synechococcus pcc 7942. To be published,

Date:

28-Mar-03

Release date:

28-Mar-04

PROCHECK

	Headers

	References

Protein chain

Q31MN3 (KATG_SYNE7) - Catalase-peroxidase

Seq: Struc:

Seq: Struc:					720 a.a. 700 a.a.*

Key:

PfamA domain

Secondary structure

CATH domain

* PDB and UniProt seqs differ at 32 residue positions (black crosses)



		Enzyme reactions

Enzyme class:

E.C.1.11.1.21 - Catalase peroxidase.

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

Reaction:

1.	Donor + H₂O₂ = oxidized donor + 2 H₂O
2.	2 H₂O₂ = O₂ + 2 H₂O

Donor	+	H(2)O(2)	=	oxidized donor	+	2 × H(2)O

2 × H(2)O(2)	=	O(2)	+	2 × H(2)O

Molecule diagrams generated from .mol files obtained from the KEGG ftp site



		Gene Ontology (GO) functional annotation

Biological process	oxidation-reduction process	3 terms
Biochemical function	oxidoreductase activity	5 terms