dCDP + [thioredoxin]-disulfide + H2O => CDP + [thioredoxin]-dithiol
dcdp + [thioredoxin]-disulfide + h2o => cdp + [thioredoxin]-dithiol
dCDP + [thioredoxin]-disulfide + H2O => CDP + [thioredoxin]-dithiol
dcdp + [thioredoxin]-disulfide + h2o => cdp + [thioredoxin]-dithiol