UniProt functional annotation for O32727

UniProt code: O32727.

Organism: Geobacillus stearothermophilus (Bacillus stearothermophilus).
Taxonomy: Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Geobacillus.
 
Function: Binds to sigma F and blocks its ability to form an RNA polymerase holoenzyme (E-sigma F). Phosphorylates SpoIIAA on a serine residue. This phosphorylation may enable SpoIIAA to act as an anti- anti-sigma factor that counteracts SpoIIAB and thus releases sigma F from inhibition. {ECO:0000255|HAMAP-Rule:MF_00637}.
 
Catalytic activity: Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl- [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA- COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616, ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.1; Evidence={ECO:0000255|HAMAP-Rule:MF_00637};
Catalytic activity: Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L- threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060, Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013, ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216; EC=2.7.11.1; Evidence={ECO:0000255|HAMAP-Rule:MF_00637};
Similarity: Belongs to the anti-sigma-factor family. {ECO:0000255|HAMAP-Rule:MF_00637}.

Annotations taken from UniProtKB at the EBI.