>3-alpha-(or 20-beta)-hydroxysteroid dehydrogenase
MSGRLIGKVALVSGGARGMGASHVRAMVAEGAKVVFGDILDEEGKAVAAELADAARYVHL
DVTQPAQWTAAVDTAVTAFGGLHVLVNNAGILNIGTIEDYALTEWQRILDVNLTGVFLGI
RAVVKPMKEAGRGSIINISSIEGLAGTVACHGYTATKFAVRGLTKSTALELGPSGIRVNS
IHPGLVKTPMTDWVPEDIFQTALGRAAEPVEVSNLVVYLASDESSYSTGAEFVVDGGTVA
GLAHNDFGAVEVSSQPEWVT