D-ribulose 5-phosphate + CTP + H(+) => CDP-D-ribulose + diphosphate
d-ribulose 5-phosphate + ctp + h(+) => cdp-d-ribulose + diphosphate
D-ribulose 5-phosphate + CTP + H(+) => CDP-D-ribulose + diphosphate
d-ribulose 5-phosphate + ctp + h(+) => cdp-d-ribulose + diphosphate