ATP-binding cassette sub-family B member 9 (ABCB9)

ATP-dependent low-affinity peptide transporter which translocates a wide spectrum of peptides from the cytosol into the lysosomal lumen. Displays a wide peptide length specificity from 6-mer around 59-mer peptides with an optimum of 23-mers.

Favors positively charged, aromatic or hydrophobic residues in the N- and C-terminal positions whereas negatively charged residues as well as asparagine and methionine aren't favored. .