HMM Summary Page: TIGR02122

FunctionTRAP transporter solute receptor, TAXI family
Trusted Cutoff84.35
Domain Trusted Cutoff84.35
Noise Cutoff69.25
Domain Noise Cutoff69.25
Isology Typesubfamily
HMM Length320
Mainrole CategoryTransport and binding proteins
Subrole CategoryUnknown substrate
Gene Ontology TermGO:0005215: transporter activity molecular_function
GO:0006810: transport biological_process
AuthorHaft DH
Entry DateFeb 12 2004 9:32AM
Last ModifiedFeb 14 2011 3:27PM
CommentThis family is one of at least three major families of extracytoplasmic solute receptor (ESR) for TRAP (Tripartite ATP-independent Periplasmic Transporter) transporters. The others are the DctP (TIGR00787) and SmoM (PF03480) families. These transporters are secondary (driven by an ion gradient) but composed of three polypeptides, although in some species the 4-TM and 12-TM integral membrane proteins are fused. Substrates for this transporter family are not fully characterized but, besides C4 dicarboxylates, may include mannitol and other compounds.
ReferencesRM 11524131 RT The tripartite ATP-independent periplasmic (TRAP) transporters of bacteria and archaea. RA Kelly DJ, Thomas GH. RL FEMS Microbiol Rev. 2001 Aug;25(4):405-24.
Genome PropertyGenProp0176: TRAP-T (tripartite ATP-independent periplasmic transporters) family transporters (HMM)