Oh H


▲ FIGURE 2-14 Common structure of nucleotides.

(a) Adenosine 5'-monophosphate (AMP), a nucleotide present in RNA. By convention, the carbon atoms of the pentose sugar in nucleotides are numbered with primes. In natural nucleotides, the 1' carbon is joined by a p linkage to the base (in this case adenine); both the base (blue) and the phosphate on the 5' hydroxyl (red) extend above the plane of the furanose ring.

(b) Ribose and deoxyribose, the pentoses in RNA and DNA, respectively.

HNn 4 sCH

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