Azinepurine; benzotetrazine; pyrazino[2,3-d]pyrimidine; a two-ring heterocyclic compound found as a component of pteroic acid and the pteroylglutamic acids (folic acids, pteropterin, etc.); simple p. derivatives ( e.g., xanthopterin, leucopterin) occur as pigments in butterfly wings, whence the name.

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pter·i·dine 'ter-ə-.dēn n a yellow crystalline bicyclic base C6H4N4 that is a structural constituent esp. of various animal pigments

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pter·i·dine (terґĭ-dēn) a bicyclic aromatic nitrogenous compound or the class of compounds containing such a ring structure. Most naturally occurring pteridine derivatives are pterins.

Medical dictionary. 2011.

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  • Ptéridine — Général Nom IUPAC ptéridine No CAS …   Wikipédia en Français

  • Pteridine —   [zu griechisch pterón »Flügel« (nach ihrem Vorkommen in den Pigmenten von Schmetterlingsflügeln)], Gruppe von Verbindungen, denen das Ringgerüst des Pteridins zugrunde liegt. Weit verbreitete Naturstoffe sind v. a. die vom 2 Amino 4… …   Universal-Lexikon

  • Pteridine — Pteridin, die Stammverbindung der Pteridine Als Pteridine bezeichnet man Derivate des Stammheterocyclus Pteridin. Darunter fallen biologisch wichtige Moleküle, so Folsäure und Biopterin. In den Flavinen findet man eine benzo anellierte Pteridin… …   Deutsch Wikipedia

  • Pteridine — Chembox new ImageFile=Pteridin Pteridine.svg ImageSize= IUPACName=pteridine OtherNames= Section1= Chembox Identifiers CASNo=91 18 9 PubChem=1043 SMILES=C1=CN=C2C(=N1)C=NC=N2 MeSHName= Section2= Chembox Properties Formula=C6H4N4 MolarMass=132.123… …   Wikipedia

  • pteridine — noun Etymology: International Scientific Vocabulary pterin + idine Date: 1943 a yellow crystalline bicyclic base C6H4N4; broadly any of a class of compounds (as the pterins) that have the bicyclic ring system of pteridine and include especially… …   New Collegiate Dictionary

  • pteridine — pteridinas statusas T sritis chemija apibrėžtis Heterociklinis junginys. formulė C₆H₄N₄ atitikmenys: angl. pteridine rus. птеридин …   Chemijos terminų aiškinamasis žodynas

  • Pteridine reductase — In enzymology, a pteridine reductase (EC number| is an enzyme that catalyzes the chemical reaction:5,6,7,8 tetrahydrobiopterin + 2 NADP+ ightleftharpoons biopterin + 2 NADPH + 2 H+Thus, the two substrates of this enzyme are 5,6,7,8… …   Wikipedia

  • Pteridine oxidase — In enzymology, a pteridine oxidase (EC number| is an enzyme that catalyzes the chemical reaction:2 amino 4 hydroxypteridine + O2 ightleftharpoons 2 amino 4,7 dihydroxypteridine + (?)Thus, the two substrates of this enzyme are 2 amino 4… …   Wikipedia

  • pteridine — n. [Gr. pteron, wing; eidos, like] Tetrazanaphthaline derivatives, widespread in nature; important in natural pigmentation …   Dictionary of invertebrate zoology

  • pteridine — (= pyrazino2,3 dpyrimidine) Nitrogen containing compound composed of two six membered rings (pyrazine and pyrimidine rings). Structural component of folic acid and riboflavin and parent compound of pterins such as xanthopterin, a yellow pigment… …   Dictionary of molecular biology

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