(R)-mandelonitrile + UDP-alpha-D-glucose <=> (R)-prunasin + UDP + H(+)
(r)-mandelonitrile + udp-alpha-d-glucose <=> (r)-prunasin + udp + h(+)
(R)-mandelonitrile + UDP-alpha-D-glucose <=> (R)-prunasin + UDP + H(+)
(r)-mandelonitrile + udp-alpha-d-glucose <=> (r)-prunasin + udp + h(+)