ALD is an alias for the gene, ATP binding cassette subfamily D member 1, in humans. Other names include: ATP-binding cassette sub-family D member 1; Adrenoleukodystrophy proteinP; ABC42; ATP-binding cassette, sub-family D (ALD), member 1. The encoded protein has an amino acid length of 745 and a mass of 82.9 kDa. ALD is a member of the ABC transporter superfamily, ABCD family, Peroxisomal fatty acyl CoA transporter (TC 3.A.1.203) subfamily. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog.