[gwah-neen] /ˈgwɑ nin/
a purine base, C 5 H 5 N 5 O, that is a fundamental constituent of DNA and RNA, in which it forms base pairs with cytosine. Symbol: G.
a white almost insoluble compound: one of the purine bases in nucleic acids. Formula: C5H5N5O
1850, from guano, from which the chemical first was isolated, + chemical suffix -ine (2).
guanine gua·nine (gwä’nēn’)
A purine base that is an essential constituent of both RNA and DNA.
A purine base that is a component of DNA and RNA, forming a base pair with cytosine. It also occurs in guano, fish scales, sugar beets, and other natural materials. Chemical formula: C5H5ON5.
noun, Biochemistry. 1. an enzyme, found in liver, brain, spleen, pancreas, and kidney, that converts guanine into xanthine and ammonia. guanine deaminase n. A liver enzyme that catalyzes the conversion of guanine to xanthine. Also called guanase.
- Guanine deoxyribonucleotide
guanine deoxyribonucleotide n. See deoxyguanylic acid.
- Guanine ribonucleotide
guanine ribonucleotide n. See GMP.
[gwah-noh] /ˈgwɑ noʊ/ noun 1. a natural manure composed chiefly of the excrement of sea birds, found especially on islands near the Peruvian coast. 2. any similar substance, as an artificial fertilizer made from fish. /ˈɡwɑːnəʊ/ noun (pl) -nos 1. 2. any similar but artificial substance used as a fertilizer n. c.1600, from Spanish guano […]