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UniProtKB/Swiss-Prot entry Q9K1N8


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name MSRAB_NEIMB
Primary accession number Q9K1N8
Secondary accession numbers None
Integrated into Swiss-Prot on May 2, 2002
Sequence was last modified on October 1, 2000 (Sequence version 1)
Annotations were last modified on    November 25, 2008 (Entry version 56)
Name and origin of the protein
Protein name Peptide methionine sulfoxide reductase msrA/msrB
Synonyms None
Includes Thioredoxin
Peptide methionine sulfoxide reductase msrA
     (Protein-methionine-S-oxide reductase)
     (EC 1.8.4.11)
     (Peptide-methionine (S)-S-oxide reductase)
     (Peptide Met(O) reductase)
Peptide methionine sulfoxide reductase msrB
     (EC 1.8.4.12)
     (Peptide-methionine (R)-S-oxide reductase)
Gene name
Name: msrAB
Synonyms: pilB
OrderedLocusNames: NMB0044
From
Neisseria meningitidis serogroup B [TaxID: 491] [HAMAP proteome]
Taxonomy Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales; Neisseriaceae; Neisseria.
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
STRAIN=MC58 / Serogroup B;
DOI=10.1126/science.287.5459.1809; PubMed=10710307 [NCBI, ExPASy, EBI, Israel, Japan]
Tettelin H., Saunders N.J., Heidelberg J.F., Jeffries A.C., Nelson K.E., Eisen J.A., Ketchum K.A., Hood D.W., Peden J.F., Dodson R.J., Nelson W.C., Gwinn M.L., DeBoy R.T., Peterson J.D., Hickey E.K., Haft D.H., Salzberg S.L., White O., Fleischmann R.D., Dougherty B.A., Mason T.M., Ciecko A., Parksey D.S., Blair E., Cittone H., Clark E.B., Cotton M.D., Utterback T.R., Khouri H.M., Qin H., Vamathevan J.J., Gill J., Scarlato V., Masignani V., Pizza M., Grandi G., Sun L., Smith H.O., Fraser C.M., Moxon E.R., Rappuoli R., Venter J.C.;
"Complete genome sequence of Neisseria meningitidis serogroup B strain MC58.";
Science 287:1809-1815(2000).
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).
  • CATALYTIC ACTIVITY: Peptide-L-methionine + thioredoxin disulfide + H2O = peptide-L-methionine (S)-S-oxide + thioredoxin.
  • CATALYTIC ACTIVITY: L-methionine + thioredoxin disulfide + H2O = L-methionine (S)-S-oxide + thioredoxin.
  • CATALYTIC ACTIVITY: Peptide-L-methionine + thioredoxin disulfide + H2O = peptide-L-methionine (R)-S-oxide + thioredoxin.
  • DOMAIN: Possesses 2 methionine sulfoxide reductase domains (A/MsrA and B/MsrB) and 1 N-terminal thioredoxin domain. The domain B exhibits a thioredoxin dependent methionine sulfoxide reductase activity; the Cys-495 is probably involved in the reduction of MetSO and in formation of the sulfenic acid derivative. The regeneration of Cys-495 is probably done via formation of a disulfide bond with Cys-440 followed by its reduction by thioredoxin.
  • SIMILARITY: In the N-terminal section; belongs to the thioredoxin family.
  • SIMILARITY: In the central section; belongs to the msrA Met sulfoxide reductase family.
  • SIMILARITY: In the C-terminal section; belongs to the msrB Met sulfoxide reductase family.
  • SIMILARITY: Contains 1 thioredoxin domain.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AE002098; AAF40515.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR G81243; G81243.
RefSeq NP_273110.1; -.
3D structure databases
HSSP P14930; 1L1D. [HSSP ENTRY / PDB]
SMR Q9K1N8; 32-182, 375-521.
ModBase Q9K1N8.
Enzyme and pathway databases
BioCyc NMEN122586:NMB_0044-MON; -.
Ontologies
GO
GO:0033743; Molecular function: peptide-methionine (R)-S-oxide reductase activity (inferred from electronic annotation from EC).
GO:0008113; Molecular function: peptide-methionine-(S)-S-oxide reductase activity (inferred from electronic annotation from HAMAP).
GO:0045454; Biological process: cell redox homeostasis (inferred from electronic annotation from InterPro).
GO:0022900; Biological process: electron transport chain (inferred from electronic annotation from UniProtKB-KW).
GO:0006464; Biological process: protein modification process (inferred from electronic annotation from HAMAP).
GO:0006810; Biological process: transport (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.
Family and domain databases
HAMAP MF_01400; fused; 1.
MF_01401; fused; 1.
PBIL [Tree]
InterPro IPR002569; MsrA.
IPR002579; MsrB.
IPR013740; Redoxin.
IPR012335; Thioredoxin_fold.
Graphical view of domain structure.
Gene3D G3DSA:3.30.1060.10; MsrA; 1.
G3DSA:2.170.150.20; MsrB; 1.
G3DSA:3.40.30.10; Thioredoxin_fold; 1.
Pfam PF01625; PMSR; 1.
PF08534; Redoxin; 1.
PF01641; SelR; 1.
Pfam graphical view of domain structure.
ProDom PD004057; DUF25; 1.
PD003489; PMSR; 1.
PD003679; Thioredoxin_like; 1.
[Domain structure / List of seq. sharing at least 1 domain]
TIGRFAMs TIGR00401; msrA; 1.
TIGR00357; MsrB; 1.
PROSITE PS51352; THIOREDOXIN_2; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS Q9K1N8.
ProtoNet Q9K1N8.
Genome annotation databases
GeneID 902147; -.
GenomeReviews AE002098_GR; NMB0044.
KEGG nme:NMB0044; -.
NMPDR fig|122586.1.peg.44; -.
TIGR NMB0044; -.
Phylogenomic databases
HOGENOM Q9K1N8; -.
Other
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Complete proteome; Electron transport; Multifunctional enzyme; Oxidoreductase; Redox-active center; Transport.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   522  522     Peptide methionine sulfoxide reductase msrA/msrB. PRO_0000138510
DOMAIN   17   174  158     Thioredoxin. 
REGION   199   354  156     Peptide methionine sulfoxide reductase A. 
REGION   383   506  124     Peptide methionine sulfoxide reductase B. 
ACT_SITE   207   207        By similarity. 
DISULFID   68    71        Redox-active (By similarity). 
DISULFID   440   495        By similarity. 
Sequence information
Length: 522 AA [This is the length of the unprocessed precursor] Molecular weight: 58015 Da [This is the MW of the unprocessed precursor] CRC64: 535A823EDB76BFD1 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MKHRTFFSLC AKFGCLLALG ACSPKIVDAG AATVPHTLST LKTADNRPAS VYLKKDKPTL 

        70         80         90        100        110        120 
IKFWASWCPL CLSELGQTEK WAQDAKFSSA NLITVASPGF LHEKKDGDFQ KWYAGLNYPK 

       130        140        150        160        170        180 
LPVVTDNGGT IAQSLNISVY PSWALIGKDS DVQRIVKGSI NEAQALALIR DPNADLGSLK 

       190        200        210        220        230        240 
HSFYKPDTQK KDSKIMNTRT IYLAGGCFWG LEAYFQRIDG VVDAVSGYAN GNTKNPSYED 

       250        260        270        280        290        300 
VSYRHTGHAE TVKVTYDADK LSLDDILQYF FRVVDPTSLN KQGNDTGTQY RSGVYYTDPA 

       310        320        330        340        350        360 
EKAVIAAALK REQQKYQLPL VVENEPLKNF YDAEEYHQDY LIKNPNGYCH IDIRKADEPL 

       370        380        390        400        410        420 
PGKTKTAPQG KGFDAATYKK PSDAELKRTL TEEQYQVTQN SATEYAFSHE YDHLFKPGIY 

       430        440        450        460        470        480 
VDVVSGEPLF SSADKYDSGC GWPSFTRPID AKSVTEHDDF SYNMRRTEVR SHAADSHLGH 

       490        500        510        520 
VFPDGPRDKG GLRYCINGAS LKFIPLEQMD AAGYGALKGK VK 

Q9K1N8 in FASTA format

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Tools Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
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