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msrA [2019-07-03 11:23:41]
peptide methionine sulfoxide reductase
function
regeneration of methionine and restoration of protein function after oxidative damage
product
peptide methionine sulfoxide reductase
Genomic Context
categories
[category|SW 4|Lifestyles] → [category|SW 4.3|Coping with stress] → [category|SW 4.3.8|Resistance against oxidative and electrophile stress]Gene
Coordinates
2,287,529 2,288,062
The protein
Catalyzed reaction/ biological activity
Peptide-L-methionine + thioredoxin disulfide + H2O = peptide-L-methionine (S)-S-oxide + thioredoxin (according to Swiss-Prot)Structure
[PDB|2GT3] (from E. coli, 45% identity) [pubmed|17157315]Expression and Regulation
Operons
genes
[gene|389245FDE13226D65DF117E28B5DA346DC856860|msrA]-[gene|BF8A3C916C4B673D30AEF7C330C9BD5A487AB0EA|msrB]
description
[Pubmed|18662407]
sigma factors
[protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|18662407,17289755], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]regulatory mechanism
[protein|2C6386E9A63F410558D168798D077DF91590F454|Spx]: activation, oxidized [protein|2C6386E9A63F410558D168798D077DF91590F454|Spx] binds [protein|5996A5C25E108A3C4562686BF34A59CB14FD56EB|RpoA] and enhances [protein|389245FDE13226D65DF117E28B5DA346DC856860|MsrA]-[protein|BF8A3C916C4B673D30AEF7C330C9BD5A487AB0EA|MsrB] operon transcription [Pubmed|18662407], in [regulon|2C6386E9A63F410558D168798D077DF91590F454|Spx regulon]regulation
induced by oxidative stress ([protein|search|Spx])view in new tabBiological materials
Mutant
MGNA-A894 (yppP::erm), available at the [https://shigen.nig.ac.jp/bsub/resource/strainGeneDisrupted/detail/894 NBRP B. subtilis, Japan]BKE21690 ([gene|389245FDE13226D65DF117E28B5DA346DC856860|msrA]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE21690 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATACTGGTGCCTCCTTTGT, downstream forward: _UP4_TAAATGGCGTACAATAAAGABKK21690 ([gene|389245FDE13226D65DF117E28B5DA346DC856860|msrA]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK21690 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATACTGGTGCCTCCTTTGT, downstream forward: _UP4_TAAATGGCGTACAATAAAGAReferences