ISDA: 2CAG

Deposition Date 1996-06-12

Release Date 1996-12-07

Last Version Date 2024-10-23

Entry Detail

PDB ID:

2CAG

Keywords:

OXIDOREDUCTASE (H2O2 ACCEPTOR)

Title:

CATALASE COMPOUND II

Biological Source:

Source Organism:

Proteus mirabilis (Taxon ID: 584)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.70 Å

R-Value Free:

0.24

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 62 2 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CATALASE COMPOUND II
Gene (Uniprot):katA
Chain IDs:A
Chain Length:484
Number of Molecules:1
Biological Source:Proteus mirabilis

UniProt ID:P42321 Pfam ID:PF00199, PF06628 EC:1.11.1.6

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
OMT	A	MET	S-DIOXYMETHIONINE

Ligand Molecules

HEM

Primary Citation

Ferryl intermediates of catalase captured by time-resolved Weissenberg crystallography and UV-VIS spectroscopy.

Gouet, P, Jouve, H.M, Williams, P.A, Andersson, I, Andreoletti, P, Nussaume, L, Hajdu, J, Gouet, P, Jouve, H.M, Dideberg, O, Fita, I, Silva, A.M, Murthy, M.R.N, Rossmann, M.G.Show

Nat.Struct.Biol. 3 951 956 (1996)

PMID: 8901874 DOI: 10.1038/nsb1196-951

Abstact

Various enzymes use semi-stable ferryl intermediates and free radicals during their catalytic cycle, amongst them haem catalases. Structures for two transient intermediates (compounds I and II) of the NADPH-dependent catalase from Proteus mirabilis (PMC) have been determined by time-resolved X-ray crystallography and single crystal microspectrophotometry. The results show the formation and transformation of the ferryl group in the haem, and the unexpected binding of an anion during this reaction at a site distant from the haem.

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Primary Citation of related structures