Tributyltin-binding protein type 1 has a distinctive lipocalin-like structure and is involved in the excretion of tributyltin in Japanese flounder, Paralichthys olivaceus.
Satone H, Oshima Y, Shimasaki Y, Tawaratsumida T, Oba Y, Takahashi E, Kitano T, Kawabata S, Kakuta Y, Honjo T. Aquat Toxicol. 2008 Dec 11; 90(4):292-9. Epub 2008 Sep 13.