title: The STAS domain - a link between anion transporters and antisigma-factor antagonists.
authors.forename: L
authors.initials: L
authors.lastname: Aravind
authors.forename: E V
authors.initials: EV
authors.lastname: Koonin
mesh_terms: D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D000838:Anions; D002352:Carrier Proteins / Q000737:chemistry / Q000378:metabolism*; D017124:Conserved Sequence; D017136:Ion Transport; D008969:Molecular Sequence Data; D011487:Protein Conformation; D017386:Sequence Homology, Amino Acid; D012808:Sigma Factor / Q000037:antagonists & inhibitors*
chemical_list: D000838:Anions; D002352:Carrier Proteins; D012808:Sigma Factor