Guanosine is formed when guanine attaches to the sugar ribose to form a glycosidic linkage. It is involved with the direct preservation and transfer of chemical energy in living systems. Guanosine is present in every cell in the human body.
Guanosine is a purine, meaning that it is a single ring structure. A carbon sugar ring attaches to nitrogen in the base to form an N-glycosylic bond. The nitrogenous bases, which are primarily nonpolar, pack tightly enough to exclude water and form a stable, primarily nonpolar environment in the helix interior.
Obtained courtesy of the Cambridge Structural Database
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