>tr|A0A0A0MRM6|A0A0A0MRM6_HUMAN Cytochrome b5 reductase 4 OS=Homo sapiens OX=9606 GN=CYB5R4 PE=1 SV=1 MDWIRLTKSGKDLTGLKGRLIEVTEEELKKHNKKDDCWICIRGFVYNVSPYMEYHPGGED ELMRAAGSDGTELFDQVHRWVNYESMLKECLVGRMAIKPAVLKGKLWHL