luteolin + UDP-alpha-D-glucose <=> isoorientin + UDP + H(+)
luteolin + udp-alpha-d-glucose <=> isoorientin + udp + h(+)
luteolin + UDP-alpha-D-glucose <=> isoorientin + UDP + H(+)
luteolin + udp-alpha-d-glucose <=> isoorientin + udp + h(+)