>tr|A0A6P3HX28|A0A6P3HX28_BISBB Thiopurine S-methyltransferase OS=Bison bison bison GN=TPMT MGDSRALLDSEEYPNTEAQKDRVLTLEEWQEKWVNHKTGFHQEQGHQLLKKYLDTFLKGE KALRVFFPLCGKAVEMKWFADRGHSVVGVEISELGIRDFFTEQNLSYSEEPIMEIPGAKI FKSSSGNISLYCCNLFDLPRANIGKFDRIWDRGALVAVNPSDRKRYSDVMLSLTRPGFRY LLSVFSYDPTKHAGPPFYVTDGEVKKLFGSVCNIQCLEKVDVFEERHKSWGIDQIIERLY LFTEK