stevioside + UDP-alpha-D-glucose <=> rebaudioside E + UDP + H(+)
stevioside + udp-alpha-d-glucose <=> rebaudioside e + udp + h(+)
stevioside + UDP-alpha-D-glucose <=> rebaudioside E + UDP + H(+)
stevioside + udp-alpha-d-glucose <=> rebaudioside e + udp + h(+)