The bilirubin transporter (bilitranslocase; BLT) of 340 aas and 3 or 4 TMSs. A structural model has been proposed (Roy Choudhury et al. 2015). Strangely, no homologues are present in the NCBI protein database as of July 2016, even from another mammal. A possible distant homologue is a hypothetical protein AUH14_01145 of 333 aas and 1 - 3 TMSs, the Candidatus Rokubacteria bacterium 13_2_20CM_69_15_1] )ACCESSION # OLB08456).
Bilitranslocase of Rattus norvegicus