1qwm Summary

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Structure of Helicobacter pylori catalase with formic acid bound

The structure was published by Loewen, P.C., Carpena, X., Rovira, C., et al., Obenbreit, S., Nicholls, P., and Fita, I., in 2004 in a paper entitled "Structure of Helicobacter pylori Catalase, with and without Formic Acid Bound, at 1.6 A Resolution" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.6 Å and deposited in 2003.

The experimental data on which the structure is based was also deposited.

This PDB entry contains multiple copies of the structure of KatA catalase.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms homotetramers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A KatA catalase P77872 (1-505) (CATA_HELPY)search Helicobacter pylori 26695search 100% 505 97%
B KatA catalase P77872 (1-505) (CATA_HELPY)search Helicobacter pylori 26695search 100% 505 97%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P77872 (1 - 505) KatA catalase Helicobacter pylori

Chain Structural classification (SCOP) Sequence family (Pfam)
A, B (P77872) Heme-dependent catalasessearch PF00199: Catalasesearch, PF06628: Catalase-related immune-responsivesearch

Chain ID Biological process (GO) Molecular function (GO) Cellular component (GO)
A, B (P77872) response to oxidative stresssearch oxidation-reduction processsearch hydrogen peroxide catabolic processsearch heme bindingsearch catalase activitysearch oxidoreductase activitysearch protein bindingsearch peroxidase activitysearch metal ion bindingsearch cytoplasmsearch

Chain InterPro annotation
A, B Catalase haem-binding sitesearch Catalase immune-responsive domainsearch Catalase core domainsearch Catalase, mono-functional, haem-containingsearch Catalase-like domainsearch Catalase active sitesearch Catalase, mono-functional, haem-containing, clades 1 and 3search