A. ÄÍÊ äÍÒÔ

 

 

5’ Bn-1 O CH2     H O 3’ | + HO-P=O | O 5’| Bn O CH2 H OH 3’
OH | g HO-P=O | O | b HO-P=O | O | a HO-P=O | O | Bn+1 O CH2 5’     H OH 3’

 

5’ Bn-1 O CH2     H O 3’ | HO-P=O | O Bn O CH2 + PPi