单词 | pyrimidine base |
释义 | > as lemmaspyrimidine base pyrimidine base n. a base with a structure related to pyrimidine; spec. each of the nucleotide-forming bases cytosine, thymine, and uracil; cf. purine base n. at purine n. Compounds 2. ΚΠ 1903 Science 8 May 742/2 Nucleic acid derived from the plant cell differs from that of the animal cell with variation in the characters of the pyrimidin base present in its molecule. 1924 Nature 12 Apr. 524/1 In these bodies [sc. the nucleic acids] a carbohydrate group is associated with a phosphoric acid group and also with a purin or pyrimidin base. 1952 Sci. News 24 43 The DNA isolated from different organs of the same animal species seems to be constant in composition with respect to the relative amounts of purine and pyrimidine bases but differs from samples obtained from other species. 1992 C. A. Smith & E. J. Wood Biosynthesis vii. 139 So-called salvage pathways exist by which the purine and pyrimidine bases..can be rescued from further breakdown and excretion and reincorporated into nucleotides. < as lemmas |
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