TRAP transporter solute receptor, DctP family (IPR004682)

Short name: TRAP_DctP

Overlapping homologous superfamilies

Family relationships


Substrate-binding proteins (SBPs) are extracytoplasmic proteins involved in substrate recognition for several different bacterial transporters. This entry includes a subset of the DctP family of the substrate-binding proteins. They are part of the DctP-TRAP (tripartite ATP-independent periplasmic) transporter. Proteins in this family include DctP from R. capsulatus, SiaP from Haemophilus influenzae [PMID: 20584082] and DctB from Bacillus subtilis [PMID: 10708364].

The tripartite ATP-independent periplasmic (TRAP) transporters are substrate-binding protein (SBP)-dependent secondary transporters found in prokaryotes. They consist of a substrate-binding protein (SBP) of the DctP or TAXI families and two integral membrane proteins that form the DctQ and DctM protein families [PMID: 20584082].

GO terms

Biological Process

GO:0055085 transmembrane transport

Molecular Function

No terms assigned in this category.

Cellular Component

GO:0030288 outer membrane-bounded periplasmic space

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.