Structure of a nucleoside
triphosphate (= nucleotide)
In
Figure (a) the base is attached to the 1'-C
of the sugar, and the inorganic phosphate to
the 5'-C. The pentose (5-carbon) sugar is
identifiable as a deoxyribose by the absence
of an -O- from the hydroxyl group on the 2'-C
as compared with the RNA nucleotide at right.