Immunogen sequence: DVVLGFAELE GYLQKQPYFG AVIGRVANRI AKGTFKVDGK EYHLAINKEP NSLHGGVRGF DKVLWTPRVL SNGVQFSRIS PDGEEG. This gene encodes an enzyme that catalyzes the epimerization of hexose sugars such as glucose and galactose. The encoded protein is expres