, . . , : (: , ; : , , ) ( 6, 7); (D- D-); .
, , . N- , , ( 21). ( 8). .
6. .
7. .
8. .
21
I. * | ||||
Ura (U) | Cyt (C) | Ade (A) | Gua (G) | |
Urd | Cyd | Ado | Guo | |
5'- | -5'- 5'- Urd-5'-P UMP | -5'- 5'- Cyd-5'-P CMP | -5'- 5'- Ado-5'-P AMP | -5'- 5'- Guo-5'-P GMP |
II. * | ||||
Thy (T) | Cyt (C) | Ade (A) | Gua (G) | |
(-) dThd | - dCyd | - dAdo | - dGuo | |
5'- | -5'- dTMP | -5'- dCMP | -5'- dAMP | -5'- dGMP |
* 5'-, -3', 3'-.
, . . , .
, . , , (, ). .
25