cl00604

Sulphate Transporter and Anti-Sigma factor antagonist domain found in the C-terminal region of sulphate transporters as well as in bacterial and archaeal proteins involved in the regulation of sigma factors; The STAS (Sulphate Transporter and Anti-Sigma factor antagonist) domain is found in the C-terminal region of sulphate transporters as well as in bacterial and archaeal proteins involved in the regulation of sigma factors, like anti-anti-sigma factors and "stressosome" components. The sigma factor regulators are involved in protein-protein interaction which is regulated by phosphorylation.