ATP-binding cassette domain of glucan transporter and related proteins, subfamily C
Glucan exporter ATP-binding protein. In A. tumefaciens cyclic beta-1, 2-glucan must be transported into the periplasmic space to exert its action as a virulence factor. This subfamily belongs to the MRP-like family and is involved in drug, peptide, and lipid export. The MRP-like family, similar to all ABC proteins, have a common four-domain core structure constituted by two membrane-spanning domains each composed of six transmembrane (TM) helices and two nucleotide-binding domains (NBD). ABC transporters are a subset of nucleotide hydrolases that contain a signature motif, Q-loop, and H-loop/switch region, in addition to, the Walker A motif/P-loop and Walker B motif commonly found in a number of ATP- and GTP-binding and hydrolyzing proteins.
Jiyao W et al.(2023). "The conserved domain database in 2023.",