phosphonoformate + CTP <=> CMP-5'-phosphonoformate + diphosphate
phosphonoformate + ctp <=> cmp-5'-phosphonoformate + diphosphate
phosphonoformate + CTP <=> CMP-5'-phosphonoformate + diphosphate
phosphonoformate + ctp <=> cmp-5'-phosphonoformate + diphosphate