MSRA1_NOSS1
ID MSRA1_NOSS1 Reviewed; 163 AA.
AC Q8YXZ4;
DT 02-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 03-AUG-2022, entry version 102.
DE RecName: Full=Peptide methionine sulfoxide reductase MsrA 1;
DE Short=Protein-methionine-S-oxide reductase 1;
DE EC=1.8.4.11;
DE AltName: Full=Peptide-methionine (S)-S-oxide reductase 1;
DE Short=Peptide Met(O) reductase 1;
GN Name=msrA1; OrderedLocusNames=all1062;
OS Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX NCBI_TaxID=103690;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT "Complete genomic sequence of the filamentous nitrogen-fixing
RT cyanobacterium Anabaena sp. strain PCC 7120.";
RL DNA Res. 8:205-213(2001).
CC -!- FUNCTION: Has an important function as a repair enzyme for proteins
CC that have been inactivated by oxidation. Catalyzes the reversible
CC oxidation-reduction of methionine sulfoxide in proteins to methionine
CC (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-disulfide + H2O + L-methionyl-[protein] =
CC [thioredoxin]-dithiol + L-methionyl-(S)-S-oxide-[protein];
CC Xref=Rhea:RHEA:14217, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700,
CC Rhea:RHEA-COMP:12313, Rhea:RHEA-COMP:12315, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:16044, ChEBI:CHEBI:29950, ChEBI:CHEBI:44120,
CC ChEBI:CHEBI:50058; EC=1.8.4.11;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-disulfide + H2O + L-methionine = [thioredoxin]-
CC dithiol + L-methionine (S)-S-oxide; Xref=Rhea:RHEA:19993, Rhea:RHEA-
CC COMP:10698, Rhea:RHEA-COMP:10700, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:29950, ChEBI:CHEBI:50058, ChEBI:CHEBI:57844,
CC ChEBI:CHEBI:58772; EC=1.8.4.11;
CC -!- SIMILARITY: Belongs to the MsrA Met sulfoxide reductase family.
CC {ECO:0000305}.
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DR EMBL; BA000019; BAB73019.1; -; Genomic_DNA.
DR PIR; AC1939; AC1939.
DR AlphaFoldDB; Q8YXZ4; -.
DR SMR; Q8YXZ4; -.
DR STRING; 103690.17130408; -.
DR EnsemblBacteria; BAB73019; BAB73019; BAB73019.
DR KEGG; ana:all1062; -.
DR eggNOG; COG0225; Bacteria.
DR OMA; PYIAYND; -.
DR Proteomes; UP000002483; Chromosome.
DR GO; GO:0033744; F:L-methionine:thioredoxin-disulfide S-oxidoreductase activity; IEA:RHEA.
DR GO; GO:0008113; F:peptide-methionine (S)-S-oxide reductase activity; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.1060.10; -; 1.
DR HAMAP; MF_01401; MsrA; 1.
DR InterPro; IPR002569; Met_Sox_Rdtase_MsrA_dom.
DR InterPro; IPR036509; Met_Sox_Rdtase_MsrA_sf.
DR Pfam; PF01625; PMSR; 1.
DR SUPFAM; SSF55068; SSF55068; 1.
DR TIGRFAMs; TIGR00401; msrA; 1.
PE 3: Inferred from homology;
KW Oxidoreductase; Reference proteome.
FT CHAIN 1..163
FT /note="Peptide methionine sulfoxide reductase MsrA 1"
FT /id="PRO_0000138527"
FT ACT_SITE 21
FT /evidence="ECO:0000250"
SQ SEQUENCE 163 AA; 18524 MW; 49AB056BCDCCE657 CRC64;
MELKIGSTEA PMEKATFGAG CFWGVEAAFR KVKGVVSTSV GYMGGHFPNP CYLDVLSRIT
GHAEVVQIEY DPQLVSYEDL LAVFWDIHDP TTLNRQGPDK GEQYRSVIFF HNEQQAEAAQ
QSKAKVQVSG RFELDIVTEI KHKSEYYLAT EEHQQYFEKQ AKR
