Read More
Date: 22-11-2021
1212
Date: 25-12-2021
1245
Date: 2-9-2021
1868
|
Cytidine Triphosphate Synthesis
Cytidine triphosphate (CTP) is produced by amination of UTP by CTP synthetase (Fig. 1), with glutamine providing the nitrogen. Some of this CTP is dephosphorylated to CDP, which is a substrate for ribonucleotide reductase. The dCDP product can be phosphorylated to dCTP for DNA synthesis or dephosphorylated to dCMP that is deaminated to dUMP.
Figure 1: Synthesis of CTP from UTP. [Note: CTP, required for RNA synthesis, is converted to dCTP for DNA synthesis.] ADP = adenosine diphosphate; Pi = inorganic phosphate.
|
|
دور النظارات المطلية في حماية العين
|
|
|
|
|
العلماء يفسرون أخيرا السبب وراء ارتفاع جبل إيفرست القياسي
|
|
|
|
|
اختتام المراسم التأبينية التي أهدي ثوابها إلى أرواح شهداء المق*ا*و*مة
|
|
|