ABC-type (ATP-binding cassette-type) ATPase, characterized by the presence of two similar ATP-binding domains. Does not undergo phosphorylation during the transport process. A eukaryotic enzyme that imports guanine and tryptophan (it contains a single ATP-binding site).
Dreesen, T.D., Johnson, D.H and Henikoff, S. The brown protein of Drosophila melanogaster is similar to the white protein and to components of active transport complexes. Mol. Cell Biol.8 (1988) 5206–5215. [PMID: 3149712]
Tearle, R.G., Belote, J.M., McKeown, M., Baker, B.S. and Howells, A.J. Cloning and characterization of the scarlet gene of Drosophila melanogaster. Genetics122 (1989) 595–606. [PMID: 2503416]
Griffiths, J.K. and Sansom, C.E. The Transporter Factsbook, Academic Press, San Diego, 1998.