Pyrimidine is a nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA. 554-01-8, formula is C5H7N3O, Name is 4-Amino-5-methylpyrimidin-2(1H)-one. Pyrimidine also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Electric Literature of 554-01-8.
Li, Fei;Cui, Xiaoting;Zheng, Yulin;Wang, Qian;Zhou, Yunlei;Yin, Huanshun research published 《 Photoelectrochemical biosensor for DNA formylation based on WS2 nanosheets@polydopamine and MoS2 nanosheets》, the research content is summarized as follows. The photoresponse ability of MoS2 was excellently improved by polydopamine (PDA) coated WS2 composite (WS2@PDA) based on the matched energy band and solid electron donor property of PDA, which significantly blocked the recombination of photogenerated electron-hole pair. Taking the enhanced photoactivity performance of MoS2 and WS2@PDA compound, a simply and sensitively photoelectrochem. biosensor was developed for DNA formation detection, where DNA fragment with 5-formylcytosine (5fC-DNA) was employed as detection target. In the photoactive system, PDA was used as photoactive accelerant and 5fC recognized reagent. After immobilization of MoS2/WS2@PDA, the DNA fragment containing 5-formylcytosine was further captured through the formation of amide bond between the -NH2 of PDA and the -CHO of 5fC, causing the decreased photocurrent due to the electrostatic repulsion effect of neg. DNA to photogenerated electron. The biosensor in this work presented wide linear range for 5fC-DNA detection from 0.005 to 200 nM with low detection limit of 3.7 pM (3σ). The developed method not only showed good detection selectivity, but also can discriminate cytosine, 5-methylcitosine and 5-hydroxymethylcytosine to increase its specificity. The applicability of this work was demonstrated by investigating the effect of environmental pollutants on 5fC expression in genomic DNA of maize and wheat seedling leaves resp.
Electric Literature of 554-01-8, 5-Methylcytosine is a methylated form of the nucleobase cytosine occurring predominantly in cytosine-phosphate-guanine (CpG) islands that are produced by DNA methyltransferases and may regulate gene expression. Like cytosine, the DNA sequence containing 5-methylcytosine (5-mC) is able to be replicated without error and 5-mC can pair with guanine in double stranded DNA. However, DNA sequences containing a high local concentration of 5-mC may be less transcriptionally active than areas with higher ratios of unmodified cytosine.
5-Methylcytosine belongs to the class of organic compounds known as hydroxypyrimidines. These are organic compounds containing a hydroxyl group attached to a pyrimidine ring. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. 5-Methylcytosine exists as a solid, slightly soluble (in water), and a very weakly acidic compound (based on its pKa). Within the cell, 5-methylcytosine is primarily located in the cytoplasm. 5-Methylcytosine can be biosynthesized from cytosine. Outside of the human body, 5-methylcytosine can be found in tea. This makes 5-methylcytosine a potential biomarker for the consumption of this food product.
5-methylcytosine is a pyrimidine that is a derivative of cytosine, having a methyl group at the 5-position. It has a role as a human metabolite. It is a member of pyrimidines and a methylcytosine. It derives from a cytosine.
5-Methylcytosine is a nucleic acid that is found in the DNA and RNA of the cell. It is an important component of methylation, which is the process by which a methyl group is added to a molecule. This process can lead to cellular transformation, a process that can cause cancer. 5-Methylcytosine has also been shown as a molecular pathogenesis factor in infectious diseases such as HIV and herpes simplex virus type 1. The presence of 5-methylcytosine in nuclear DNA has been detected by analytical techniques such as gas chromatography/mass spectrometry (GC/MS). There are many analytical methods, including GC/MS, that can be used to detect 5-methylcytosine in cellular nuclei., 554-01-8.
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia