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