>cd03234 ABCG_White The White subfamily represents ABC transporters homologous to the Drosophila white gene, which acts as a dimeric importer for eye pigment precursors. The eye pigmentation of Drosophila is developed from the synthesis and deposition in the cells of red pigments, which are synthesized from guanine, and brown pigments, which are synthesized from tryptophan. The pigment precursors are encoded by the white, brown, and scarlet genes, respectively. Evidence from genetic and biochemical studies suggest that the White and Brown proteins function as heterodimers to import guanine, while the White and Scarlet proteins function to import tryptophan. However, a recent study also suggests that White may be involved in the transport of a metabolite, such as 3-hydroxykynurenine, across intracellular membranes. Mammalian ABC transporters belonging to the White subfamily (ABCG1, ABCG5, and ABCG8) have been shown to be involved in the regulation of lipid-trafficking mechanisms in

Probab=94.69  E-value=0.017  Score=35.23  Aligned_cols=35  Identities=20%  Similarity=0.481  Sum_probs=27.9

Q ss_pred             CCCCC-CCCCCCCCCCEECCCCCCCCHHHHHHHHHH
Q ss_conf             11002-355702154100367566662489999999
Q gi|254780615|r  137 IKVID-LISPYQKGGKIGLFGGAGVGKTVLIMELIN  171 (478)
Q Consensus       137 IkaID-~l~pig~Gqr~gIfgg~GvGKT~l~~~~i~  171 (478)
T Consensus        20 ~~vL~~vs~~i~~Ge~~~ilGpnGsGKSTLl~~i~G   55 (226)
T cd03234          20 ARILNDVSLHVESGQVMAILGSSGSGKTTLLDAISG   55 (226)
T ss_pred             EEEEECCEEEEECCCEEEEECCCCCHHHHHHHHHHC
T ss_conf             899889778991880999998999609999999967