Uracil (/ ˈ j ʊər ə s ɪ l /) (symbol U or Ura) is one of the four nucleotide bases in the nucleic acid RNA.The others are adenine (A), cytosine (C), and guanine (G). In RNA, uracil binds to adenine via two hydrogen bonds.In DNA, the uracil nucleobase is replaced by thymine (T). Uracil is a demethylated form of thymine.. Uracil is a common and naturally occurring pyrimidine derivative. [2]

尿嘧啶 (uracil) ，是一种有机化合物，分子式为c4h4n2o2，分子量为112.087，细灰白色结晶粉末。尿嘧啶是rna特有的碱基，相当于dna中的胸腺嘧啶(t)，是形成rna和维生素b3（陆地生命代谢的重要辅因子）的基本构件之一，是组成rna四种构成的碱基之一。在dna的转录时取代 dna 中的胸腺嘧啶，与腺嘌呤配对。

Uracil | C4H4N2O2 | CID 1174 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards ...

Uracil 是一种嘧啶衍生物，是 RNA 核酸中的四个碱基之一。Uracil 是一种经常发生的 DNA 碱基损伤，由自发或化学诱导的胞嘧啶脱氨引起，在复制水平上具有诱变性。Uracil 可能潜在地改变转录保本度，导致突变蛋白。- 高纯度，全球文献引用。

uracil, a colourless, crystalline organic compound of the pyrimidine family that occurs as a component of ribonucleic acid (), a molecule involved in the transmission of hereditary characteristics. The RNA molecule consists of a sequence of nucleotides, each containing a five-carbon sugar (ribose), a phosphate group, and a nitrogenous base. Uracil is one of four nitrogenous bases found in the ...

3 天之前 · Uracil. The fact that uracil is present in RNA and not DNA contributes to the ability of RNA to be degraded easily. This allows the cell to change which genes are being expressed, as the older RNAs do not stick around for very long.

2002年12月16日 · Uracil in DNA results from deamination of cytosine, resulting in mutagenic U : G mispairs, and misincorporation of dUMP, which gives a less harmful U : A pair. At least four different human DNA ...

2024年1月29日 · This review article delves into the intricate biological activities of uracil, an essential pyrimidine Base pivotal in RNA structures. Examining its involvement in nucleic acid metabolism, various multifunctional roles, spanning from influencing cell proliferation to its antimicrobial and antiviral properties.

Uracil is one of the five main nucleobases found in the nucleic acids DNA and RNA.The others are adenine, cytosine, guanine, and thymine.However, while the other four are found in DNA, Uracil is usually only found in RNA. Uracil (U), thymine (T), and cytosine (C) are pyrimidine derivatives, and guanine (G) and adenine (A) are purine derivatives.. In DNA, thymine and cytosine form hydrogen ...

2025年2月25日 · Uracil (CAS 66-22-8) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers ...