| 单词 | 5-methylcytosine |
| 释义 | > as lemmas5-methylcytosine 5-methylcytosine n. a methylated form of the pyrimidine base cytosine that is involved in the control of transcription in eukaryotes. ΚΠ 1903 Amer. Chem. Jrnl. 29 495 The natural assumption is that the analogous thymine..results from the decomposition of a corresponding base, the as yet undiscovered 5-methylcytosine. 1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) x. 583 Vertebrate DNAs contain 5-methylcytosine.., which has the same relation to cytosine that thymine has to uracil and likewise has no effect on base-pairing. 2000 Mutation Res. 462 137 Thymine produced at these sites by the hydrolytic deamination of 5-methylcytosine is removed by thymine-DNA glycosylase. < as lemmas |
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