Human S15A3 full length protein-synthetic nanodisc

Proton oligopeptide cotransporter. Transports free histidine and certain di- and tripeptides (By similarity).[UniProtKB/Swiss-Prot Function]. Human S15A3 full length protein-synthetic nanodisc. Protein function: Proton-coupled amino-acid transporter that transports free histidine and certain di- and tripeptides, and is involved in innate immune response. Also able to transport carnosine (PubMed:31073693). Involved in the detection of microbial pathogens by toll-like receptors (TLRs) and NOD-like receptors (NLRs), probably by mediating transport of bacterial peptidoglycans across the endolysosomal membrane: catalyzes the transport of certain bacterial peptidoglycans, such as muramyl dipeptide (MDP), the NOD2 ligand. [The UniProt Consortium]