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 => d-ribulose 5-phosphate + ctp + h(+)