guanine /gua·nine/ (gwah´nēn) a purine base, in animal and plant cells usually occurring condensed with ribose or deoxyribose to form guanosine and deoxyguanosine, constituents of nucleic acids. Symbol G.
guanine
gua·nine (gwä n n )n. Abbr. G A purine base that is an essential constituent of both RNA and DNA. |
guanine
[gwan′ēn]
a purine base that is a component of DNA and RNA. In free or uncombined form it occurs in trace amounts in most cells, usually as a product of the enzymatic hydrolysis of nucleic acids and nucleotides. On hydrolysis it is first converted into xanthine and finally into uric acid. See also adenine.
guanine
G; a purine base, one of the fundamental components of nucleic acids (DNA and RNA).
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