1m6k Summary

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Structure of the OXA-1 class D beta-lactamase

The structure was published by Sun, T., Nukaga, M., Mayama, K., Braswell, E.H., and Knox, J.R., in 2003 in a paper entitled "Comparison of beta-lactamases of classes A and D: 1.5A crystallographic structure of the class D OXA-1 oxacillinase" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.5 Å and deposited in 2002.

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

This PDB entry contains multiple copies of the structure of beta-lactamase OXA-1.

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 homodimers.

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 beta-lactamase OXA-1 P13661 (26-276) (BLO1_ECOLX)search Escherichia colisearch 100% 251 99%
B beta-lactamase OXA-1 P13661 (26-276) (BLO1_ECOLX)search Escherichia colisearch 100% 251 99%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P13661 (26 - 276) beta-lactamase OXA-1 Escherichia coli

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A, B (P13661) beta-Lactamase/D-ala carboxypeptidasesearch DD-peptidase/beta-lactamase superfamilysearch PF00905: Penicillin binding protein transpeptidase domainsearch

Chain ID Molecular function (GO) Biological process (GO)
A, B (P13661) beta-lactamase activitysearch penicillin bindingsearch hydrolase activitysearch antibiotic catabolic processsearch response to antibioticsearch

Chain InterPro annotation
A, B Penicillin-binding protein, transpeptidasesearch Beta-lactamase, class-D active sitesearch Beta-lactamase/transpeptidase-likesearch