These bacterial 7TM receptor proteins have an intracellular Pfam:PF01966. This entry corresponds to the 7 helix transmembrane domain. These proteins also contain an N-terminal extracellular domain.

1: Application of comparative genomics in the identification and analysis of novel families of membrane-associated receptors in bacteria. Anantharaman V, Aravind L; BMC Genomics 2003;4:34. PMID:12914674