purine nucleotide

См. также в других словарях:

• Purine riboswitch — Purine riboswitches are RNA structures that regulate protein biosynthesis in response to purinescite journal | last = Mandal | first = M | coauthors = Boese B, Barrick JE, Winkler WC, Breaker RR | year = 2003 | title = Riboswitches Control… …   Wikipedia

• Nucleotide — Nucleotides are molecules that, when joined together, make up the structural units of RNA and DNA. In addition, nucleotides participate in cellular signaling (cGMP and cAMP), and are incorporated into important cofactors of enzymatic reactions… …   Wikipedia

• Purine nucleoside phosphorylase — Not to be confused with polynucleotide phosphorylase. purine nucleoside phosphorylase Identifiers EC number 2.4.2.1 CAS number …   Wikipedia

• Nucleotide — Nucléotide Les nucléotides sont des acides désoxyribonucléiques pour l ADN et ribonucléiques pour l ARN. Un nucléotide est composé de 3 parties : un groupement phosphate (ou acide phosphorique), identique pour les nucléotides de l ADN et de… …   Wikipédia en Français

• Nucleotide diphosphatase — Identifiers EC number 3.6.1.9 CAS number 9032 64 8 …   Wikipedia

• Purine metabolism — Many organisms have metabolic pathways to synthesize and break down purines.ynthesisPurines are biologically synthesized as nucleotides (bases attached to ribose 5 phosphate). The committed step is amidophosphoribosyltransferase.Both adenine and… …   Wikipedia

• Nucleotide salvage — A salvage pathway is a pathway in which nucleotides (purine and pyrimidine) are synthesized from intermediates in the degradative pathway for nucleotides. Salvage pathways are used to recover bases and nucleosides that are formed during… …   Wikipedia

• Nucleotide — A subunit of DNA or RNA. To form a DNA or RNA molecule, thousands of nucleotides are joined in a long chain. Each nucleotide is divided into three parts (with apologies to Caesar): {{}}A nitrogenous base (A, G, T, or C in DNA; A, G, U, or C in… …   Medical dictionary

• Purine-nucleoside phosphorylase — In enzymology, a purine nucleoside phosphorylase (EC number|2.4.2.1) is an enzyme that catalyzes the chemical reaction:purine nucleoside + phosphate ightleftharpoons purine + alpha D ribose 1 phosphateThus, the two substrates of this enzyme are… …   Wikipedia

• Purine — One of the two classes of bases in DNA and RNA. The purine bases are guanine (G) and adenine (A). Uric acid, the offending substance in gout, is a purine end product. * * * The parent substance of adenine, guanine, and other naturally occurring p …   Medical dictionary

• Nucléotide — Structure des nucléotides Un nucléotide est une molécule organique composée d une nucléobase, d un pentose et de 1 à 3 groupements phosphates. Certains nucléotides forment la base de l ADN et de l ARN, d autres sont des cofacteurs ou coenzymes.… …   Wikipédia en Français