Deoxyribose, esterification

The actual building blocks for the nucleic acids are the nucleotides, which are formed in an esterification reaction between nucleosides and phosphate three OH functions of ribose, and two of deoxyribose, can undergo esterification ... 

Esterification of the 5 -hydroxyl group of deoxyribose nucleosides, such as cytosine deoxyriboside, with phosphoric acid gives the corresponding... 

Deoxyribonucleic Acid, Since only carbons 3 and 5 of the 2-deoxyribose are available for esterification in DNA, the linkages are all most probably of the 3, 5 -type. Purified phosphodiesterase quantitatively liberates 5 -mononucleotides from thymus DNA 100), On the other hand, no method has as yet been developed for degradation of these nucleic acid to 3 -deoxy-mononucleotides, although the pyrimidine 3, 5 -diphosphates have been isolated from acid hydrolyzates of DNA. Crystalline pancreatic deoxyribonuclease rapidly degrades DNA to very low molecular weight polynucleotides, but identification of many of these products reveals no certain route for the action of the enzyme 168),... 

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