P65450 (MSRB_SALTI) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Peptide methionine sulfoxide reductase MsrB
EC=1.8.4.12

Alternative name(s):
Peptide-methionine (R)-S-oxide reductase

Gene names

Name:	msrB
Ordered Locus Names:	STY1824, t1170

Organism

Salmonella typhi [Complete proteome] [HAMAP]

Taxonomic identifier

90370 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Salmonella

Protein attributes

Sequence length	137 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Catalytic activity	Peptide-L-methionine + thioredoxin disulfide + H2O = peptide-L-methionine (R)-S-oxide + thioredoxin. HAMAP MF_01400
Cofactor	Binds 1 zinc ion per subunit. The zinc ion is important for the structural integrity of the protein By similarity.
Sequence similarities	Belongs to the MsrB Met sulfoxide reductase family.
Sequence caution	The sequence AAO68827.1 differs from that shown. Reason: Erroneous initiation. The sequence CAD02063.1 differs from that shown. Reason: Erroneous initiation.

Ontologies

Keywords
Ligand	Metal-binding Zinc
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Molecular function	metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW peptide-methionine (R)-S-oxide reductase activity Inferred from electronic annotation. Source: EC peptide-methionine-(S)-S-oxide reductase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 137	137	Peptide methionine sulfoxide reductase MsrB HAMAP MF_01400		PRO_0000140293
Sites
	Active site	118	1	Nucleophile By similarity
	Metal binding	46	1	Zinc By similarity
	Metal binding	49	1	Zinc By similarity
	Metal binding	95	1	Zinc By similarity
	Metal binding	98	1	Zinc By similarity

Sequences

	Sequence		Length	Mass (Da)
	P65450 [UniParc]. Last modified October 11, 2004. Version 1. Checksum: 90F79ABD5B4283CF	FASTA	137	15,471
	10 20 30 40 50 60 MANQPSAEEL KKKLSEMQFY VTQDRGTEPP FTGRLLHNKR DGVYHCLVCD TPLFHSHTKY 70 80 90 100 110 120 DSGCGWPSFY QPVSEEAIRY IDDFSHGMQR VEIRCGNCDA HLGHVFPDGP QPTGERYCVN 130 SASLAFSDEK NGDQLKG

References

[1]	"Complete genome sequence of a multiple drug resistant Salmonella enterica serovar Typhi CT18." Parkhill J., Dougan G., James K.D., Thomson N.R., Pickard D., Wain J., Churcher C.M., Mungall K.L., Bentley S.D., Holden M.T.G., Sebaihia M., Baker S., Basham D., Brooks K., Chillingworth T., Connerton P., Cronin A., Davis P. , Davies R.M., Dowd L., White N., Farrar J., Feltwell T., Hamlin N., Haque A., Hien T.T., Holroyd S., Jagels K., Krogh A., Larsen T.S., Leather S., Moule S., O'Gaora P., Parry C., Quail M.A., Rutherford K.M., Simmonds M., Skelton J., Stevens K., Whitehead S., Barrell B.G. Nature 413:848-852(2001) [PubMed: 11677608] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: CT18.
[2]	"Comparative genomics of Salmonella enterica serovar Typhi strains Ty2 and CT18." Deng W., Liou S.-R., Plunkett G. III, Mayhew G.F., Rose D.J., Burland V., Kodoyianni V., Schwartz D.C., Blattner F.R. J. Bacteriol. 185:2330-2337(2003) [PubMed: 12644504] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 700931 / Ty2.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AL627271 Genomic DNA. Translation: CAD02063.1. Different initiation. AE014613 Genomic DNA. Translation: AAO68827.1. Different initiation.
PIR	AF0711.
3D structure databases
ProteinModelPortal	P65450.
SMR	P65450. Positions 4-128.
ModBase	Search...
Proteomic databases
PRIDE	P65450.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GenomeReviews	Gene locus t1170 in contig AE014613_GR. Gene locus STY1824 in contig AL513382_GR.
KEGG	stt:t1170. sty:STY1824.
PATRIC	18541548. VBISalEnt120419_1836.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG715255.
OMA	LFESATK.
ProtClustDB	PRK00222.
Enzyme and pathway databases
BioCyc	SENT209261:T1170-MONOMER. SENT220341:STY1824-MONOMER.
Family and domain databases
HAMAP	MF_01400. MsrB. [Tree]
InterPro	IPR002579. Methionine_sulphoxide_MsrB. IPR011057. Mss4-like. [Graphical view]
Gene3D	G3DSA:2.170.150.20. MsrB. 1 hit.
KO	K07305.
Pfam	PF01641. SelR. 1 hit. [Graphical view]
SUPFAM	SSF51316. Mss4_like. 1 hit.
TIGRFAMs	TIGR00357. TIGR00357. 1 hit.
ProtoNet	Search...

Entry information

Entry name

MSRB_SALTI

Accession

Primary (citable) accession number: P65450
Secondary accession number(s): Q8XGD3

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 11, 2004
Last sequence update:	October 11, 2004
Last modified:	January 25, 2012
This is version 49 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program