. "In many organisms this activity is catalyzed by a bifunctional enzyme." . "The cytidylyltransferase domain of the bifunctional EC 2.7.7.74/EC 2.7.8.34 (CTP:inositol-1-phosphate cytidylyltransferase/CDP-inositol:inositol-1-phosphate transferase) is absolutely specific for CTP and 1L-myo-inositol 1-phosphate." . "The enzyme is involved in biosynthesis of bis(1L-myo-inositol) 1,3'-phosphate, a widespread organic solute in microorganisms adapted to hot environments." . "The cytidylyltransferase domain of the bifunctional EC 2.7.7.74/EC 2.7.8.34 is absolutely specific for CTP and 1L-myo-inositol 1-phosphate." . . . "1L-myo-inositol 1-phosphate cytidylyltransferase" . "IPCT" . "L-myo-inositol-1-phosphate cytidylyltransferase" . "CTP + 1L-myo-inositol 1-phosphate = diphosphate + CDP-1L-myo-inositol." .