Pyrimidine (C4H4N2; /pɪˈrɪ.mɪˌdiːn, paɪˈrɪ.mɪˌdiːn/) is an aromatic, heterocyclic, organic compound similar to pyridine (C5H5N). One of the three diazines... 23 KB (2,105 words) - 06:11, 26 April 2024 |
Pyrimidine biosynthesis occurs both in the body and through organic synthesis. De Novo biosynthesis of a pyrimidine is catalyzed by three gene products... 9 KB (771 words) - 20:20, 4 January 2024 |
The purine bases adenine and guanine and pyrimidine base cytosine occur in both DNA and RNA, while the pyrimidine bases thymine (in DNA) and uracil (in RNA)... 32 KB (3,299 words) - 22:21, 6 May 2024 |
Nucleobase (section Modified pyrimidine nucleobases) of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases. Each of the base pairs in a typical double-helix... 14 KB (1,374 words) - 15:12, 30 January 2024 |
Pyrimidine analogues are antimetabolites which mimic the structure of metabolic pyrimidines. Nucleobase analogues Fluorouracil (5FU), which inhibits thymidylate... 1 KB (83 words) - 02:50, 9 November 2021 |
Uracil (redirect from 2-oxy-4-oxy pyrimidine) demethylated form of thymine. Uracil is a common and naturally occurring pyrimidine derivative. The name "uracil" was coined in 1885 by the German chemist... 29 KB (2,942 words) - 07:58, 6 October 2023 |
a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also gives... 24 KB (2,510 words) - 13:01, 6 February 2024 |
Nucleic acid metabolism (category Pyrimidines) nitrogenous base. The bases found in nucleic acids are either purines or pyrimidines. In the more complex multicellular animals, they are both primarily produced... 13 KB (1,457 words) - 22:06, 24 December 2023 |
In enzymology, a pyrimidine-nucleoside phosphorylase (EC 2.4.2.2) is an enzyme that catalyzes the chemical reaction a pyrimidine nucleoside + phosphate... 2 KB (212 words) - 17:58, 23 January 2024 |
Photolyase (redirect from Deoxyribocyclobutadipyrimidine pyrimidine-lyase) is called photoreactivation. They mainly convert pyrimidine dimers into a normal pair of pyrimidine bases. Photo reactivation, the first DNA repair mechanism... 15 KB (1,773 words) - 12:32, 2 May 2024 |
In enzymology, a pyrimidine-5'-nucleotide nucleosidase (EC 3.2.2.10) is an enzyme that catalyzes the chemical reaction a pyrimidine 5'-nucleotide + H2O... 2 KB (186 words) - 15:38, 26 August 2023 |
Ribosylpyrimidine nucleosidase (redirect from Pyrimidine-nucleoside ribohydrolase) pyrimidine nucleoside + H2O ⇌ {\displaystyle \rightleftharpoons } D-ribose + a pyrimidine base Thus, the two substrates of this enzyme are pyrimidine... 3 KB (270 words) - 15:44, 26 August 2023 |
Pyrimidine phosphorylase may refer to: Thymidine phosphorylase Uridine phosphorylase This article includes a list of related items that share the same... 410 bytes (47 words) - 08:17, 7 November 2019 |
linked through a glycosidic bond to the N9 of a purine or the N1 of a pyrimidine. Nucleotides are the molecular building blocks of DNA and RNA. This list... 10 KB (851 words) - 01:58, 1 December 2023 |
Nucleoside deoxyribosyltransferase (redirect from Nucleoside:purine(pyrimidine) deoxy-D-ribosyltransferase) nucleoside:purine(pyrimidine) deoxy-D-ribosyltransferase. Other names in common use include purine(pyrimidine) nucleoside:purine(pyrimidine) deoxyribosyl... 3 KB (259 words) - 17:58, 23 January 2024 |
Deoxyribonuclease (pyrimidine dimer) (EC 3.1.25.1, endodeoxyribonuclease (pyrimidine dimer), bacteriophage T4 endodeoxyribonuclease V, T4 endonuclease... 2 KB (148 words) - 13:47, 26 August 2023 |
Nucleotide salvage (section Pyrimidines) to nucleotide salvage in particular, in which nucleotides (purine and pyrimidine) are synthesized from intermediates in their degradative pathway. Nucleotide... 7 KB (736 words) - 09:19, 4 May 2023 |
Pyrimidine oxygenase (EC 1.14.99.46, RutA) is an enzyme with systematic name uracil,FMNH2:oxygen oxidoreductase (uracil hydroxylating, ring-opening). This... 2 KB (159 words) - 15:38, 26 August 2023 |
Dimerization (chemistry) (section Pyrimidine dimers) a monomeric structure. Pyrimidine dimers (also known as thymine dimers) are formed by a photochemical reaction from pyrimidine DNA bases when exposed... 13 KB (1,372 words) - 08:00, 3 May 2024 |
governed by physico-chemical processes. RNA is composed of purine and pyrimidine nucleotides, both of which are necessary for reliable information transfer... 3 KB (459 words) - 08:12, 24 October 2023 |
divided into two groups, the single-ringed pyrimidines and the double-ringed purines. In DNA, the pyrimidines are thymine and cytosine; the purines are... 166 KB (17,845 words) - 19:31, 23 March 2024 |
Orotic aciduria (redirect from Orotic aciduria purines-pyrimidines) decreased ability to synthesize pyrimidines. It was the first described enzyme deficiency of the de novo pyrimidine synthesis pathway. Orotic aciduria... 6 KB (583 words) - 17:01, 20 October 2023 |
nitrogenous bases are classified into two parent compounds, purine and pyrimidine. The general structure of a ribonucleotide consists of a phosphate group... 22 KB (2,627 words) - 09:26, 19 June 2023 |
point group D2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine. It is a "deliquescent crystal or wax-like solid with a pungent, sweet... 5 KB (403 words) - 16:22, 9 May 2024 |