malate

- m. dehydrogenase an enzyme that catalyzes, through NAD+ or NADP+, the dehydrogenation of m. to oxaloacetate or its decarboxylation to pyruvate and CO2. At least six m. dehydrogenases are known, distinguished by their products, use of NAD+ or NADP+, and specificity of substrate (one acts on d-m., the rest act on l-m.); one is an enzyme in the tricarboxylic acid cycle. SYN: malic acid dehydrogenase, malic dehydrogenase, malic enzyme, pyruvic-malic carboxylase.
- m. synthase an enzyme catalyzing the reversible condensation of acetyl-CoA with glyoxylate and water to form l-m. and coenzyme A; an enzyme in the glyoxylate cycle. SYN: glyoxylate transacetylase, m.-condensing enzyme.

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ma·late 'mal-.āt, 'mā-.lāt n a salt or ester of malic acid

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ma·late (maґlāt) (malґāt) an ionic form of malic acid.

Medical dictionary. 2011.

Look at other dictionaries:

  • Malate — (O−OC CH2 CH(OH) COO−) is the ionized form of Malic Acid. It is an important chemical compound in biochemistry. In the C4 carbon fixation process, malate is a source of CO2 in the Calvin cycle. In the Citric Acid Cycle, (S) malate is an… …   Wikipedia

  • Malate — Ma late, n. [L. malum apple: cf. F. malate. See {Malic}.] (Chem.) A salt of malic acid. [1913 Webster] …   The Collaborative International Dictionary of English

  • malate — ou malata adj. et n. (Madag.) Se dit d une personne descendant d un pirate. || Subst. Un(e) malate ou un(e) malata …   Encyclopédie Universelle

  • Malāte — Malāte, apfelsaure Salze, z. B. Natriummalat, apfelsaures Natron …   Meyers Großes Konversations-Lexikon

  • Malate —   [zu lateinisch malum »Apfel«] Plural, Salze und Ester der Apfelsäure …   Universal-Lexikon

  • malate — [mal′āt΄, mā′lāt΄] n. a salt or ester of malic acid …   English World dictionary

  • Malate — Strukturformel   D Äpfelsäure         L Äpfelsäure …   Deutsch Wikipedia

  • Malate — Acide malique Ne pas confondre avec l acide maléique Acide malique Général Nom IUPAC acide hydroxybutanedioïque …   Wikipédia en Français

  • malate — malatas statusas T sritis chemija formulė (R,M)OOCCH(OH)CH₂COO(M,R) atitikmenys: angl. malate rus. малат ryšiai: sinonimas – hidroksibutandioatas …   Chemijos terminų aiškinamasis žodynas

  • malate — noun Date: 1794 a salt or ester of malic acid …   New Collegiate Dictionary

  • malate — The ion from malic acid, a component of the citric acid cycle …   Dictionary of molecular biology

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