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