dTDP-beta-L-mycarose + erythronolide B = 3-O-alpha-L-mycarosylerythronolide B + dTDP + H(+)
dtdp-beta-l-mycarose + erythronolide b = 3-o-alpha-l-mycarosylerythronolide b + dtdp + h(+)
"erythronolide mycarosyltransferase"
"erythronolide mycarosyltransferase"