2IEM

Solution structure of an oxidized form (Cys51-Cys198) of E. coli Methionine Sulfoxide Reductase A (MsrA)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2iema_	Alpha and beta proteins (a+b)	Ferredoxin-like	Peptide methionine sulfoxide reductase	Peptide methionine sulfoxide reductase	Peptide methionine sulfoxide reductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Peptide methionine sulfoxide reductase	8035562	3001262	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PMSR	e2iemA1	A: a+b two layers	X: Alpha-beta plaits	H: HMA-related	T: Peptide methionine sulfoxide reductase	F: PMSR	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01625	Peptide methionine sulfoxide reductase (PMSR)	Peptide methionine sulfoxide reductase	This enzyme repairs damaged proteins. Methionine sulfoxide in proteins is reduced to methionine.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Peptide methionine sulfoxide reductase msrA	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 L-methionine-(S)-S-oxide reductase activity L-methionine:thioredoxin-disulfide S-oxidoreductase activity peptide-methionine (S)-S-oxide reductase activity	response to oxidative stress response to stimulus response to stress macromolecule modification metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process protein repair cellular response to stimulus cellular response to chemical stimulus cellular response to stress response to oxidative stress response to stimulus response to stress macromolecule modification metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process protein repair cellular response to stimulus cellular response to chemical stimulus cellular response to stress response to chemical cellular response to oxidative stress cellular response to chemical stress	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002569	Peptide methionine sulphoxide reductase MsrA domain	Domain
A	IPR036509	Peptide methionine sulphoxide reductase MsrA superfamily	Homologous Superfamily
A	IPR050162	Methionine Sulfoxide Reductase A	Family

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.