Purine Properties
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Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also...
Nucleobase (section Modified purine nucleobases)have a fused-ring skeletal structure derived of purine, hence they are called purine bases. The purine nitrogenous bases are characterized by their single...
Purine nucleoside phosphorylase, PNP, PNPase or inosine phosphorylase (EC 2.4.2.1) is an enzyme that in humans is encoded by the NP gene. It catalyzes...
Xanthine (redirect from 1H-purine-2,6-diol)archaically xanthic acid; systematic name 3,7-dihydropurine-2,6-dione) is a purine base found in most human body tissues and fluids, as well as in other organisms...
Nucleotide (section Purine ribonucleotide synthesis)linked. Purines, however, are first synthesized from the sugar template onto which the ring synthesis occurs. For reference, the syntheses of the purine and...
Adenine (redirect from 6-Amino-purine)Adenine (/ˈædɪnɪn/) (symbol A or Ade) is a purine nucleobase. It is one of the four nucleobases in the nucleic acids of DNA, the other three being guanine...
Alkaloid (redirect from Purine alkaloid)This group includes terpene-like and steroid-like alkaloids, as well as purine-like alkaloids such as caffeine, theobromine, theacrine and theophylline...
In enzymology, a purine nucleosidase (EC 3.2.2.1) is an enzyme that catalyzes the chemical reaction a purine nucleoside + H2O ⇌{\displaystyle \rightleftharpoons...
Inosine (category Purines)this set of white cells (which cannot operate purine salvage pathways) is selectively targeted by the purine deficiency resulting from inosine monophosphate...
ammonium acid urate. Uric acid is a product of the metabolic breakdown of purine nucleotides, and it is a normal component of urine. High blood concentrations...
Theacrine (redirect from 1,3,7,9-Tetramethyl-7,9-dihydro-1H-purine-2,6,8(3H)-trione)Theacrine, also known as 1,3,7,9-tetramethyluric acid, is a purine alkaloid found in Cupuaçu (Theobroma grandiflorum) and in a Chinese tea known as kucha...- Pyrimidine (section Physical properties)these bases form hydrogen bonds with their complementary purines. Thus, in DNA, the purines adenine (A) and guanine (G) pair up with the pyrimidines thymine...
Molybdenum (redirect from Properties of molybdenum)animals, and in humans, the oxidation of xanthine to uric acid, a process of purine catabolism, is catalyzed by xanthine oxidase, a molybdenum-containing enzyme...
equal to the amount of thymine. Further, a 1:1 stoichiometric ratio of purine and pyrimidine bases (i.e., A+G=T+C) should exist. This pattern is found...
Nucleic acid structure (redirect from Mechanical properties of DNA)One or more phosphate groups. The nitrogen bases adenine and guanine are purine in structure and form a glycosidic bond between their 9 nitrogen and the...
Methylliberine Names Preferred IUPAC name 2-Methoxy-1,7,9-trimethyl-7,9-dihydro-1H-purine-6,8-dione Other names O(2),1,7,9-Tetramethylurate; Tetramethyluric acid;...
Inosinic acid (category Purines)of hypoxanthine and the first nucleotide formed during the synthesis of purine nucleotides. It can also be formed by the deamination of adenosine monophosphate...
A purine riboswitch is a sequence of ribonucleotides in certain messenger RNA (mRNA) that selectively binds to purine ligands via a natural aptamer domain...
Nucleoside deoxyribosyltransferase (redirect from Nucleoside:purine(pyrimidine) deoxy-D-ribosyltransferase)class is nucleoside:purine(pyrimidine) deoxy-D-ribosyltransferase. Other names in common use include purine(pyrimidine) nucleoside:purine(pyrimidine) deoxyribosyl...
Guanosine-5'-triphosphate (GTP) is a purine nucleoside triphosphate. It is one of the building blocks needed for the synthesis of RNA during the transcription...
- look for the oxidative formation of uric acid and other substances of the purine family. Already the chemical relationships of uric acid and nuclein have
- types: 1.Transitions: It is the replacement of one purine in a polynucleotide chain by another purine(A by G or G by A) or one pyrimidine by another pyrimidine(T