ID 2.7.7.74 DE 1L-myo-inositol 1-phosphate cytidylyltransferase. AN IPCT. AN L-myo-inositol-1-phosphate cytidylyltransferase. CA 1D-myo-inositol 3-phosphate + CTP + H(+) = CDP-1L-myo-inositol + CA diphosphate. CC -!- In many organisms this activity is catalyzed by a bifunctional CC enzyme. CC -!- The cytidylyltransferase domain of the bifunctional CC EC 2.7.7.74/EC 2.7.8.34 is absolutely specific for CTP and 1L-myo- CC inositol 1-phosphate. CC -!- The enzyme is involved in biosynthesis of bis(1L-myo-inositol) CC 1,3'-phosphate, a widespread organic solute in microorganisms adapted CC to hot environments. DR O67379, DIPPS_AQUAE; O29976, DIPPS_ARCFU; Q8U1Z6, DIPPS_PYRFU; DR Q1AWQ0, DIPPS_RUBXD; Q5JDA9, DIPPS_THEKO; //