synthetase

An enzyme catalyzing the synthesis of a specific substance. S. is limited, in the Enzyme Commission Report, to use as a trivial name for the ligases (EC class 6), which in turn are those synthesizing enzymes that require the cleavage of a pyrophosphate linkage in ATP or a similar compound. Reversal of lyase (EC class 4) reactions, producing a synthesis, is indicated (in trivial name s) by synthase; such reactions do not involve pyrophosphate cleavage. For individual synthetases, see the specific names.

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syn·the·tase 'sin-thə-.tās, -.tāz n an enzyme that catalyzes the linking together of two molecules esp. by using the energy derived from the concurrent splitting off of a pyrophosphate group from a triphosphate (as ATP) called also ligase

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syn·the·tase (sinґthə-tās) a term used in the trivial names of most enzymes of the ligase class [EC 6]; formerly part of the recommended name, it is no longer favored because of confusion with the term synthase and because it emphasizes reaction products rather than substrates. Cf. synthase.

Medical dictionary. 2011.

Look at other dictionaries:

  • synthétase — [ sɛ̃tetaz ] n. f. • 1985; du rad. de synthèse et ase ♦ Biochim. Enzyme catalysant la réunion de deux molécules avec hydrolyse concomitante d A. T. P. ou de pyrophosphate. ● synthétase nom féminin Ligase. synthétase [sɛ̃tetaz] n. f. ÉTYM. 1985;… …   Encyclopédie Universelle

  • Synthetase — Synthétase Les synthétases sont des enzymes de la classe des ligases. Souvent confondues avec les synthases, elles se différencient de ces dernières par l utilisation de l ATP pour catalyser une réaction. Ce document provient de « Synth%C3%A9tase …   Wikipédia en Français

  • synthetase — [sin′thə tās΄, sin′thətāz΄] n. LIGASE …   English World dictionary

  • Synthetase — Als Synthetase werden Enzyme aus der Klasse der Ligasen bezeichnet, welche bei der Ligation Adenosintriphosphat (ATP) spalten. Wie bei der Bezeichnung Synthase für ATP unabhängige Ligasen wird durch diese Benennung die „synthetisierende“… …   Deutsch Wikipedia

  • synthetase — syn•the•tase [[t]ˈsɪn θəˌteɪs, ˌteɪz[/t]] n. 1) biochem. ligase 2) biochem. Also called tRNA synthetase a ligase that assists in translating the genetic code into protein by linking a transfer RNA with a specific amino acid. • Etymology: 1947;… …   From formal English to slang

  • synthetase — /sɪnθəˈteɪz/ (say sinthuh tayz) noun ligase, a non specific name for any enzyme which will catalyse the synthesis of a named product using energy from the breakdown of ATP, as glutamine synthetase. {synthet(ic) + ase} …   Australian English dictionary

  • synthetase — ligazė statusas T sritis chemija apibrėžtis Fermentas, katalizuojantis kondensacijos (sintezės) reakcijas dalyvaujant didžiaenergiams junginiams. atitikmenys: angl. ligase; synthetase rus. лигаза; синтетаза ryšiai: sinonimas – sintetazė …   Chemijos terminų aiškinamasis žodynas

  • synthetase — ligazė statusas T sritis augalininkystė apibrėžtis Fermentas, katalizuojantis sintezės reakcijas, dalyvaujant didžiaenergiams junginiams. atitikmenys: angl. ligase; synthetase rus. лигаза; синтетаза …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • synthetase — ˈsin(t)thəˌtās, āz noun ( s) Etymology: synthetic (I) + ase : an enzyme that catalyzes the union of two molecules with concurrent breakdown of a pyrophosphate bond in a triphosphate (as ATP) glutamine synthetase …   Useful english dictionary

  • synthetase — noun Etymology: synthetic + ase Date: 1947 an enzyme that catalyzes the linking together of two molecules usually using the energy derived from the concurrent splitting off of a pyrophosphate group from a triphosphate (as ATP) called also ligase …   New Collegiate Dictionary

  • Synthétase — Les synthétases sont des enzymes appartenant à la classe des ligases. Souvent confondues avec les synthases, elles se différencient de ces dernières par l utilisation de l ATP pour catalyser une réaction. Portail de la biochimie …   Wikipédia en Français

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