sigA
168
[wiki|RNA polymerase] major [wiki|sigma factor] SigA
locus
BSU_25200
Molecular weight
42.80 kDa
pI
4.63
function
transcription
product
[wiki|RNA polymerase] major [wiki|sigma factor] SigA
essential
yes
synonyms
sigA, rpoD, crsA
Outlinks
Genomic Context
Categories containing this gene/protein
List of homologs in different organisms, belongs to COG0568 (Galperin et al., 2021)
This gene is a member of the following regulons
Gene
Coordinates
2,600,214 2,601,329
Phenotypes of a mutant
essential [Pubmed|12682299]
The protein
Protein family
[wiki|Sigma-70 factor family] (according to UniProt)
Structure
[PDB|3IYD] ([wiki|RNA polymerase] from ''E. coli'', 69% identity) [Pubmed|19903881]
[AF|P06224]
Modification
phosphorylated on Arg-365 [Pubmed|31221751]
[wiki|Localization]
cytoplasm [Pubmed|25313396]
Expression and Regulation
Operons
genes
[gene|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA]
description
[Pubmed|3919021]
sigma factors
[protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA]: sigma factor, [Pubmed|3298998], in [regulon|protein:360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA regulon]
[protein|DC3449D5F195E5C2E9E14FEC95396C8F1FDF73B4|sigH]: sigma factor, [Pubmed|3127379], in [regulon|protein:DC3449D5F195E5C2E9E14FEC95396C8F1FDF73B4|sigH regulon]
[protein|7024E4162A6D827069F882FDEACA696EBC05DD40|sigD]: sigma factor, [Pubmed|3919021], in [regulon|protein:7024E4162A6D827069F882FDEACA696EBC05DD40|sigD regulon]
additional information
An [wiki|antisense RNA] is predicted for [gene|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA] [PubMed|20525796]
genes
[gene|398924959D6C82918617C4B050F72D5E78EE12E9|yqxD]-[gene|F7B53E8AC92DAD15544C6208C2A5B41BABA73D6D|dnaG]-[gene|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA]
description
[Pubmed|3298998]
regulation
enzymatic activity is inhibited by (p)ppGpp during the 'stringent response
regulatory mechanism
[protein|2C54FE2ADC82FF414D732018C90649D477A925AD|spo0A]: repression, [Pubmed|14651647], in [regulon|protein:2C54FE2ADC82FF414D732018C90649D477A925AD|spo0A regulon]
sigma factors
[protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA]: sigma factor, [Pubmed|3298998], in [regulon|protein:360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA regulon]
[protein|DC3449D5F195E5C2E9E14FEC95396C8F1FDF73B4|sigH]: sigma factor, [Pubmed|3127379], in [regulon|protein:DC3449D5F195E5C2E9E14FEC95396C8F1FDF73B4|sigH regulon]
additional information
An [wiki|ncRNA|antisense RNA] is predicted for [gene|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|sigA] [PubMed|20525796]
labs
[wiki|Charles Moran], Emory University, NC, USA [http://www.microbiology.emory.edu/moran_c.html homepage]
References
Reviews
Original Publications
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Time of last update: 2024-11-22 20:14:07
Author of last update: Jstuelk