ATP-binding cassette domain of an uncharacterized transporter
This subgroup is related to the subfamily A transporters involved in drug resistance, nodulation, lipid transport, and bacteriocin and lantibiotic immunity. In eubacteria and archaea, the typical organization consists of one ABC and one or two integral membranes. ABC transporters are a large family of proteins involved in the transport of a wide variety of different compounds, like sugars, ions, peptides and more complex organic molecules. The nucleotide binding domain shows the highest similarity between all members of the family. 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.",