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Variant of oxaloacetate.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.




(Elements & Compounds) chem a salt of oxaloacetic acid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Noun1.oxalacetate - a salt or ester of oxalacetic acid
salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
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As the respiration rate increases, malic acid is withdrawn from the vacuole and imported into the mitochondrial matrix via transporters and metabolized to oxalacetate or pyruvate, which is the acetyl-CoA acceptor in the Krebs cycle (TAIZ & ZEIGER, 2013).
Pyruvate is decarboxylated by pyruvate dehydrogenase (PDH) to acetyl-CoA, which is then condensed with oxalacetate to citrate via the citrate synthase (CS).
The regeneration of oxalacetate in glyoxylate cycle involves malate oxidation, which produces 1 NADH that yields 2.5 ATPs in oxidative phosphorylation (step B-5 in Figure 1).