an NDP-alpha-D-glucose + [(1->4)-alpha-D-glucosyl](n) = [(1->4)-alpha-D-glucosyl](n+1) + a ribonucleoside 5'-diphosphate + H(+)
an ndp-alpha-d-glucose + [(1->4)-alpha-d-glucosyl](n) = [(1->4)-alpha-d-glucosyl](n+1) + a ribonucleoside 5'-diphosphate + h(+)
"NDPglucose-starch glucosyltransferase"
"ndpglucose-starch glucosyltransferase"