Reviewed, UniProtKB/Swiss-Prot P45213 (MSRAB_HAEIN)

Names and origin

Protein names

Recommended name:
    Peptide methionine sulfoxide reductase msrA/msrB
Including the following 2 domains:
    1- Recommended name:
            Peptide methionine sulfoxide reductase msrA
                Short name=Protein-methionine-S-oxide reductase
              EC=1.8.4.11
        Alternative name(s):
            Peptide-methionine (S)-S-oxide reductase
              Short name=Peptide Met(O) reductase
    2- Recommended name:
            Peptide methionine sulfoxide reductase msrB
              EC=1.8.4.12
        Alternative name(s):
            Peptide-methionine (R)-S-oxide reductase

Gene names

Name:	msrAB
Ordered Locus Names:	HI1455

Organism

Haemophilus influenzae [Complete proteome] [HAMAP]

Taxonomic identifier

727 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Haemophilus

Protein attributes

Sequence length	353 AA.
Sequence status	Complete.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Has an important function as a repair enzyme for proteins that have been inactivated by oxidation. Catalyzes the reversible oxidation-reduction of methionine sulfoxide in proteins to methionine By similarity. HAMAP MF_01400
Catalytic activity	Peptide-L-methionine + thioredoxin disulfide + H2O = peptide-L-methionine (S)-S-oxide + thioredoxin. HAMAP MF_01400 L-methionine + thioredoxin disulfide + H2O = L-methionine (S)-S-oxide + thioredoxin. HAMAP MF_01400 Peptide-L-methionine + thioredoxin disulfide + H2O = peptide-L-methionine (R)-S-oxide + thioredoxin.
Sequence similarities	In the N-terminal section; belongs to the msrA Met sulfoxide reductase family. In the C-terminal section; belongs to the msrB Met sulfoxide reductase family.

Ontologies

Keywords
Molecular function	Oxidoreductase
Technical term	Complete proteome Multifunctional enzyme
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW protein modification process Inferred from electronic annotation. Source: HAMAP
Molecular function	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: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 353	353	Peptide methionine sulfoxide reductase msrA/msrB HAMAP MF_01400		PRO_0000138513
Regions
	Region	43 – 196	154	Peptide methionine sulfoxide reductase A HAMAP MF_01400
	Region	213 – 336	124	Peptide methionine sulfoxide reductase B HAMAP MF_01400
Sites
	Active site	51	1	By similarity
	Active site	325	1	By similarity

Sequences

	Sequence		Length	Mass (Da)
	P45213-1 [UniParc]. Last modified February 1, 1996. Version 1. Checksum: ADBCDDB4D90A8B1E	FASTA	353	39,864
	10 20 30 40 50 60 MKLSKTFLFI TALCCATPTL AIQNSTSSSG EQKMAMENTQ NIREIYLAGG CFWGMEAYME 70 80 90 100 110 120 RIHGVKDAIS GYANGNTEKT SYQMIGLTDH AETVKVTYDA NQISLDKLLK YYFKVIDPTS 130 140 150 160 170 180 VNKQGNDRGR QYRTGIYYQD GADKAVIGQA LAQLQTKYKK PVQIEVQPLK NYIVAEEYHQ 190 200 210 220 230 240 DYLKKNPNGY CHIDITKADE PVIDEKDYPK PSDAELKAKL TPLQYSVTQN KHTERSFSNE 250 260 270 280 290 300 YWDNFQPGIY VDITTGEPVF SSNDKFESGC GWPSFTKPII KDVVHYETDN SFNMQRTEVL 310 320 330 340 350 SRAGNAHLGH VFDDGPKDKG GLRYCINSAS IKFIPLAEME KAGYGYLIQS IKK

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Whole-genome random sequencing and assembly of Haemophilus influenzae Rd." Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F., Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M., McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D., Scott J.D., Shirley R., Liu L.-I. , Glodek A., Kelley J.M., Weidman J.F., Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R., Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D., Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A., Small K.V., Fraser C.M., Smith H.O., Venter J.C. Science 269:496-512(1995) [PubMed: 7542800] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 51907 / DSM 11121 / KW20 / Rd.
[2]	"Two-dimensional map of the proteome of Haemophilus influenzae." Langen H., Takacs B., Evers S., Berndt P., Lahm H.W., Wipf B., Gray C., Fountoulakis M. Electrophoresis 21:411-429(2000) [PubMed: 10675023] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY.

Cross-references

Sequence databases
EMBL GenBank DDBJ	L42023 Genomic DNA. Translation: AAC23103.1.
PIR	E64124.
RefSeq	NP_439606.1.
3D structure databases
SMR	P45213. Positions 41-202, 208-347.
ModBase	Search...
Genome annotation databases
GeneID	950358.
GenomeReviews	Gene locus HI1455 in contig L42023_GR.
KEGG	hin:HI1455.
NMPDR	fig|71421.1.peg.1388.
TIGR	HI1455.
Phylogenomic databases
HOGENOM	HBG715255.
OMA	GIYYTDK.
Enzyme and pathway databases
BioCyc	HINF71421:HI_1455-MONOMER.
BRENDA	1.8.4.11. 109. 1.8.4.12. 109.
Family and domain databases
HAMAP	MF_01400. MsrB. Fused. [Tree] MF_01401. MsrA. Fused. [Tree]
InterPro	IPR002579. Methionine_sulphoxide_MsrB. IPR011057. Mss4-like. IPR002569. Peptide_Met_Sox_Rdtase_MsrA. [Graphical view]
Gene3D	G3DSA:3.30.1060.10. MsrA. 1 hit. G3DSA:2.170.150.20. MsrB. 1 hit.
Pfam	PF01625. PMSR. 1 hit. PF01641. SelR. 1 hit. [Graphical view]
TIGRFAMs	TIGR00401. msrA. 1 hit. TIGR00357. MsrB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

MSRAB_HAEIN

Accession

Primary (citable) accession number: P45213

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 1, 1996
Last sequence update:	February 1, 1996
Last modified:	February 9, 2010
This is version 69 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)