>4xwy_A mol:protein length:275 Sepiapterin reductase MHHHHHHENLYFQGMEGGLGRAVCLLTGASRGFGRTLAPLLASLLSPGSVLVLSARNDE ALRQLEAELGAERSGLRVVRVPADLGAEAGLQQLLGALRELPRPKGLQRLLLINNAGSL GDVSKGFVDLSDSTQVNNYWALNLTSMLCLTSSVLKAFPDSPGLNRTVVNISSLCALQP FKGWALYCAGKAARDMLFQVLALEEPNVRVLNYAPGPLDTDMQQLARETSVDPDMRKGL QELKAKGKLVDCKVSAQKLLSLLEKDEFKSGAHVDFYDK