Annotations: 3E0M

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	SelR	e3e0mA1	A: beta complex topology	X: ETN0001 domain-like (From Homology)	H: ETN0001 domain-like	T: Mss4-like	F: SelR	ECOD (1.6)
A	PMSR	e3e0mA3	A: a+b two layers	X: Alpha-beta plaits	H: HMA-related	T: Peptide methionine sulfoxide reductase	F: PMSR	ECOD (1.6)
B	SelR	e3e0mB2	A: beta complex topology	X: ETN0001 domain-like (From Homology)	H: ETN0001 domain-like	T: Mss4-like	F: SelR	ECOD (1.6)
B	PMSR	e3e0mB1	A: a+b two layers	X: Alpha-beta plaits	H: HMA-related	T: Peptide methionine sulfoxide reductase	F: PMSR	ECOD (1.6)
C	SelR	e3e0mC2	A: beta complex topology	X: ETN0001 domain-like (From Homology)	H: ETN0001 domain-like	T: Mss4-like	F: SelR	ECOD (1.6)
C	PMSR	e3e0mC1	A: a+b two layers	X: Alpha-beta plaits	H: HMA-related	T: Peptide methionine sulfoxide reductase	F: PMSR	ECOD (1.6)
D	SelR	e3e0mD2	A: beta complex topology	X: ETN0001 domain-like (From Homology)	H: ETN0001 domain-like	T: Mss4-like	F: SelR	ECOD (1.6)
D	PMSR	e3e0mD1	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)
A	2.170.150.20	Mainly Beta	Beta Complex	Metal Binding Protein, Guanine Nucleotide Exchange Factor	Chain A	CATH (4.3.0)
B	3.30.1060.10	Alpha Beta	2-Layer Sandwich	Peptide Methionine Sulfoxide Reductase	Chain A	CATH (4.3.0)
B	2.170.150.20	Mainly Beta	Beta Complex	Metal Binding Protein, Guanine Nucleotide Exchange Factor	Chain A	CATH (4.3.0)
C	3.30.1060.10	Alpha Beta	2-Layer Sandwich	Peptide Methionine Sulfoxide Reductase	Chain A	CATH (4.3.0)
C	2.170.150.20	Mainly Beta	Beta Complex	Metal Binding Protein, Guanine Nucleotide Exchange Factor	Chain A	CATH (4.3.0)
D	3.30.1060.10	Alpha Beta	2-Layer Sandwich	Peptide Methionine Sulfoxide Reductase	Chain A	CATH (4.3.0)
D	2.170.150.20	Mainly Beta	Beta Complex	Metal Binding Protein, Guanine Nucleotide Exchange Factor	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01625	Peptide methionine sulfoxide reductase (PMSR)	Peptide methionine sulfoxide reductase	-	Family
A, B, C, D	PF01641	SelR domain (SelR)	SelR domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Peptide methionine sulfoxide reductase msrA/msrB 1	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 peptide-methionine (R)-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 primary metabolic process protein metabolic process macromolecule metabolic process protein modification process protein repair	cell periphery plasma membrane membrane cellular anatomical entity
E, F, G	Short peptide SHMAEI	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR028427	Peptide methionine sulfoxide reductase MsrB	Family
A, B, C, D	IPR002569	Peptide methionine sulphoxide reductase MsrA domain	Domain
A, B, C, D	IPR036509	Peptide methionine sulphoxide reductase MsrA superfamily	Homologous Superfamily
A, B, C, D	IPR011057	Mss4-like superfamily	Homologous Superfamily
A, B, C, D	IPR002579	Peptide methionine sulphoxide reductase MrsB domain	Domain

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.