>2YXB_1|Chain A|Coenzyme B12-dependent mutase|Aeropyrum pernix (272557) MSSLQSTRERVLGTPRRRYKVLVAKMGLDGHDRGAKVVARALRDAGFEVVYTGLRQTPEQVAMAAVQEDVDVIGVSILNGAHLHLMKRLMAKLRELGADDIPVVLGGTIPIPDLEPLRSLGIREIFLPGTSLGEIIEKVRKLAEEKRMREEAEASEQVGQA