3BQG | pdb_00003bqg

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Peptide methionine sulfoxide reductase	8081986	4001312	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Peptide methionine sulfoxide reductase	8081987	3001262	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PMSR	e3bqgA1	A: a+b two layers	X: Alpha-beta plaits	H: HMA-related	T: Peptide methionine sulfoxide reductase	F: PMSR	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.1060.10	Alpha Beta	2-Layer Sandwich	Peptide Methionine Sulfoxide Reductase	Chain A	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Peptide methionine sulfoxide reductase msrA/msrB	oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity oxidoreductase activity, acting on a sulfur group of donors, disulfide as acceptor catalytic activity, acting on a protein catalytic activity peptide-methionine (R)-S-oxide reductase activity L-methionine (S)-S-oxide reductase activity peptide-methionine (S)-S-oxide reductase activity	cellular response to stimulus response to oxidative stress cellular response to chemical stimulus response to stimulus cellular response to stress response to stress response to chemical cellular response to oxidative stress cellular process cellular response to chemical stress	cellular anatomical structure intracellular anatomical structure cytoplasm

Chains	Accession	Name	Type
A	IPR002569	Peptide methionine sulphoxide reductase MsrA domain	Domain
A	IPR036509	Peptide methionine sulphoxide reductase MsrA superfamily	Homologous Superfamily
A	IPR013766	Thioredoxin domain	Domain
A	IPR011057	Mss4-like superfamily	Homologous Superfamily
A	IPR050162	Methionine Sulfoxide Reductase A	Family
A	IPR013740	Redoxin	Domain
A	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
A	IPR002579	Peptide methionine sulphoxide reductase MrsB domain	Domain

Modified Residue(s)
Chain	Residue(s)	Description
A	CSO	Parent Component: CYS RESID: AA0205 PSI-MOD : L-cysteine sulfenic acid MOD:00210

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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