An enzyme capable of catalyzing racemization, i.e., inversions of asymmetric groups; when more than one center of asymmetry is present, “epimerase” is used ( e.g., hydroxyproline, ribulose phosphate).

* * *

rac·e·mase 'ras-ə-.mās n any of various enzymes that catalyze racemizations and occur esp. in bacteria <alanine \racemase>

* * *

ra·ce·mase (raґsə-mās) a term used in the names of some enzymes of the subclass racemases and epimerases [EC 5.1] to denote those that catalyze inversion of the configuration around the asymmetric carbon atom in a substrate having only one center of asymmetry; thus, racemers are interconverted. Cf. epimerase.

Medical dictionary. 2011.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • racémase — ● racémase nom féminin Enzyme qui catalyse la transformation d un acide aminé de la série L en acide aminé de la série D …   Encyclopédie Universelle

  • Racemase — Eine Racemase ist ein Enzym, das Wasserstoff am einzigen chiralen C Atom einer Verbindung umlagert. Es gehört damit zur Gruppe der Isomerasen.[1] L Alanin [Synonym: (S) Alanin] (links) und D Alanin [Synonym: (R) Alanin] (rechts) sind Konfigurat …   Deutsch Wikipedia

  • racemase — ˈrasəˌmās noun ( s) Etymology: racemic + ase : any of various enzymes that catalyze racemizations and occur especially in bacteria alanine racemase …   Useful english dictionary

  • racemase — noun Any enzyme that catalyzes the stereochemical inversion of the configuration about an asymmetric carbon atom in a substrate having only one center of asymmetry …   Wiktionary

  • Racemase — Ra|ce|ma|se [↑ Racemat u. ↑ ase], die; , n: zur Gruppe der ↑ Isomerasen gehörende Enzyme, die bei Enantiomeren ↑ Racemisierung bewirken …   Universal-Lexikon

  • racemase — rac·e·mase …   English syllables

  • racemase — /ˈræsəmeɪz/ (say rasuhmayz) noun any enzyme which will catalyse the conversion of an optically active compound into its racemic mixture. {Latin racēmus cluster of grapes + ase} …  

  • Glutamate racemase — Identifiers EC number CAS number 9024 08 2 …   Wikipedia

  • Lactate racemase — The lactate racemase enzyme (EC number| is involved in pyruvate metabolism. It is classified under the isomerase, racemase, epimerase, and enzyme acting on hydroxyl acids and derivatives classes of enzymes. [cite web… …   Wikipedia

  • Épimérase et racémase — Les épimérases et les racémases sont des enzymes de type isomérase qui catalysent une inversion de stéréochimie dans les biomolécules[1]. Les racémases catalysent l inversion stéréochimique autour d un atome de carbone asymétrique dans une… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”