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(+) <=> cdp-d-ribose + diphosphate