Transmembrane ascorbate-dependent reductase CYB561 MEGGAAAATP TALPYYVAFS QLLGLTLVAM TGAWLGLYRG GIAWESDLQF NAHPLCMVIG LIFLQGNALL VYRVFRNEAK RTTKVLHGLL HIFALVIALV GLVAVFDYHR KKGYADLYSL HSWCGILVFV LYFVQWLVGF SFFLFPGASF SLRSRYRPQH IFFGATIFLL SVGTALLGLK EALLFNLGKS GWSQNNYSHP PWCLHITPAP