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1 fixation and increased ATP yield (1 ATP per oxaloacetate).
2 he enzyme (converting phosphoenolpyruvate to oxaloacetate).
3 tamate abrogated inhibition of Complex II by oxaloacetate.
4 ion of malate supplied from the cytoplasm to oxaloacetate.
5 e capacity to accommodate the TCA metabolite oxaloacetate.
6 ysed reversible interconversion of malate to oxaloacetate.
7 l-CoA to pyruvate to yield propionyl-CoA and oxaloacetate.
8 -CoA to pyruvate, yielding propionyl-CoA and oxaloacetate.
9 ear high enough to abolish any channeling of oxaloacetate.
10 ehydrogenase specifically oxidizes malate to oxaloacetate.
11 izing 2-methylcitrate from propionyl-CoA and oxaloacetate.
12 ghly specific for the oxidation of malate to oxaloacetate.
13 itself or its temperature-labile substrate, oxaloacetate.
14 drogenase does not exhibit any channeling of oxaloacetate.
15 activity and was blocked by the CS substrate oxaloacetate.
16 citrate, succinate, alpha-ketoglutarate, and oxaloacetate.
17 etyl-coenzyme A, in its ternary complex with oxaloacetate.
18 ent the negatively charged carboxyl group in oxaloacetate.
19 yl transfer to pyruvate substrate to produce oxaloacetate.
20 but only AOX1A is additionally activated by oxaloacetate.
21 ibution from either plasma glucose or muscle oxaloacetate.
22 m and an active site variant in complex with oxaloacetate.
23 pyruvate with CO(2) (as HCO(3) (-)), forming oxaloacetate.
24 action mechanism promotes decarboxylation of oxaloacetate.
25 miting step in the biosynthesis of AcCoA and oxaloacetate.
26 K) kinetic isotope effect observed on C-4 of oxaloacetate [(13)(V/K) = 1.0117 +/- 0.0005] indicates t
27 ic enzyme (275%); elevated concentrations of oxaloacetate (150%), malate (250%), citrate (140%), and
29 ne with (k(cat)/K(m)(pyruvate))/(k(cat)/K(m)(oxaloacetate)) = 6.1 x 10(-9) to one with that ratio = 2
30 ized by succinate + glutamate generated more oxaloacetate (a potent inhibitor of succinate dehydrogen
31 cosubstrates, 2-oxoglutarate, pyruvate, and oxaloacetate, Ab-ArAT4 possesses strong substrate prefer
32 e mitochondria energized by succinate alone, oxaloacetate accumulates and inhibits succinate dehydrog
33 mino acid sequence identity to the confirmed oxaloacetate acetyl hydrolase (OAH), an enzyme that belo
34 ough several different biochemical pathways, oxaloacetate acetylhydrolase (OAH)-catalyzed hydrolytic
36 exhibited a 52 +/- 7% reduction in cytosolic oxaloacetate, an 83 +/- 4% reduction in malonyl-CoA leve
37 MgATP-dependent carboxylation of pyruvate to oxaloacetate, an important anaplerotic reaction in mamma
38 tate with pyruvate, alpha-ketoglutarate, and oxaloacetate and (ii) mercaptopicolinate and pyruvate.
40 bisubstrate adduct indicate that each of the oxaloacetate and acetyl-CoA substrates is bound to an in
42 routes glutamine metabolism to generate both oxaloacetate and acetyl-CoA, enabling persistent tricarb
43 and MgATP-dependent cleavage of citrate into oxaloacetate and acetyl-CoA, representing a key step in
44 lving a reductive glyoxylate pathway without oxaloacetate and alpha-ketoglutarate-implying that the e
49 peroxide dismutase 1 (SOD1) (G93A) mice with oxaloacetate and evaluated their neuromuscular function
50 ates determined at varying concentrations of oxaloacetate and fixed concentrations of oxamate reveale
51 inase (GOT2), catalyzes the reaction between oxaloacetate and glutamate generating aspartate and alph
54 es the cell with only one pathway, involving oxaloacetate and l-glutamate, for de novo synthesis of h
55 ve determined the ternary complex bound with oxaloacetate and magnesium, revealing some of the conser
56 tion of 2SNAC, resulting in its breakdown to oxaloacetate and N-acetylcysteine, which is deacetylated
57 ed production of the TCA cycle intermediates oxaloacetate and NADPH, and impaired oxygen consumption.
58 complex ferricyanide, and 3) the keto-acids oxaloacetate and pyruvate (and phosphoenolpyruvate, a me
59 malate or that cannot convert malate to both oxaloacetate and pyruvate are also avirulent and protect
60 mitochondria enables the generation of both oxaloacetate and pyruvate for tricarboxylic acid (TCA) c
61 s and identified a high futile cycle between oxaloacetate and pyruvate, indicating a highly active in
63 nitor the PC-catalyzed formation of [4-(13)C]oxaloacetate and subsequent transfer of (13)CO(2) from o
64 oor or moderate KDM5B inhibitors, except for oxaloacetate and succinate, which were shown to compete
65 0 forms a hydrogen bond with the carbonyl of oxaloacetate and the alcohols of the citryl-coenzyme A a
66 led pyruvate leads to formation of [1,2-13C2]oxaloacetate and to multiply labeled glutamate and succi
67 Structural analyses of the complexes with oxaloacetate and with a bisubstrate adduct indicate that
68 A Glu198Gln variant are incubated with DHAP, oxaloacetate, and ammonium chloride, conditions under wh
69 d vesicles catalyzed the exchange of malate, oxaloacetate, and aspartate for phosphate plus a proton
70 y the TCA intermediates alpha-ketoglutarate, oxaloacetate, and pyruvate, confirming that in infected
72 olase (OAH)-catalyzed hydrolytic cleavage of oxaloacetate appears to be an especially important route
73 In the aerobic regime, 75% of mitochondrial oxaloacetate arises from anaplerotic carboxylation of py
75 is essential for the conversion of malate to oxaloacetate as part of the proper functioning of the Kr
78 iet, HFD-fed mice displayed higher levels of oxaloacetate, aspartate, and malate, along with increase
79 ubsite, and uncouples the decarboxylation of oxaloacetate at subsite 2 from the formation of ATP at s
81 dehydrogenase (MDH) to assess the chances of oxaloacetate being channeled between the MDH and CS acti
82 d with the specific example of channeling of oxaloacetate between Escherichia coli aspartate aminotra
85 through carbonyl bond polarization, not just oxaloacetate binding in the active site, is required for
89 the enzyme fumarase and further oxidized to oxaloacetate by malate dehydrogenase with the accompanyi
94 olpyruvate carboxylase [PEPC; orthophosphate:oxaloacetate carboxy-lyase (phosphorylating), EC 4.1.1.3
95 olpyruvate carboxylase [PEPC; orthophosphate:oxaloacetate carboxy-lyase (phosphorylating), EC 4.1.1.3
97 athway for the interconversion of malate and oxaloacetate catalyzed by the enzyme malate dehydrogenas
99 ated by a carbamylated lysine, except in the oxaloacetate complex in which the product's carboxylate
102 on the enzymatic conversion of glyoxylate to oxaloacetate coupled to the reduction of oxidized nicoti
104 ervation with carboxyltransferase domains in oxaloacetate decarboxylase and transcarboxylase, the str
105 ceptor domain from the Klebsiella pneumoniae oxaloacetate decarboxylase are extracted with 5 M urea o
106 ichment analyses identify an operon encoding oxaloacetate decarboxylase as diagnostic for the tongue-
108 ge amounts of aspartate aminotransferase and oxaloacetate decarboxylase, as competing enzymes for the
111 bject to enzymatic decarboxylation; however, oxaloacetate decarboxylases (ODx) were so far not identi
113 n of the two enzymes required are described; oxaloacetate decarboxylating malic dehydrogenase is also
114 atase to convert fumarate to malate and uses oxaloacetate decarboxylating malic dehydrogenase to conv
115 phogluconate aldolase exhibiting alternative oxaloacetate decarboxylation activity that modulates day
116 pe and V-type ATPases and SMF generation via oxaloacetate decarboxylation are among the most highly e
119 indicative of a glyoxylate-induced state of oxaloacetate deficiency, acetate overload, and ketoacido
120 ansfer preceding hydride transfer (malate to oxaloacetate direction), (2) the existence of two transi
121 xpressed to access the one-step synthesis of oxaloacetate directly from phosphoenolpyruvate without p
122 (alpha)-H cleavage, ketimine hydrolysis, and oxaloacetate dissociation to the rate limitation with th
123 cetyl cysteine or the TCA cycle intermediate oxaloacetate efficiently rescues Gln starvation-induced
124 ial-derived malate levels, reduced cytosolic oxaloacetate, elevated MDH1 levels, and a high cytoplasm
126 tterns of Asp and Thr suggested formation of oxaloacetate exclusively via the phosphoenolpyruvate car
127 as a complete, albeit bifurcated, TCA cycle; oxaloacetate flows to succinate both through citrate/alp
128 erate reductive power (NADPH) and to restore oxaloacetate for continued TCA cycle function (anapleros
129 ter, respectively, whereas those for GTP and oxaloacetate (for the phosphoenolpyruvate formation acti
130 bound PEP, brought subtle effects, lowering oxaloacetate formation rate but enhancing PEP formation
133 phorylation), substrate channeling (e.g., of oxaloacetate from malate dehydrogenase to citrate syntha
135 ial pyruvate metabolism; (e) the transfer of oxaloacetate from the cytosol to the mitochondria is lar
138 ed, and that for the physiological substrate oxaloacetate has been diminished, through the replacemen
139 a metabolite of plant photorespiration, into oxaloacetate in a highly efficient carbon-, nitrogen-, a
140 ces the rate of enzymatic decarboxylation of oxaloacetate in the carboxyl transferase domain of pyruv
141 etyl-CoA (3 micromol/l), which combines with oxaloacetate in the citrate synthase reaction and lowers
142 bound in the ASH domain, with an additional oxaloacetate in the CSH domain, which could function in
145 orm, CA5b, which is critical in replenishing oxaloacetate in the mitochondrial tricarboxylic acid (TC
147 ow that the glucose metabolites pyruvate and oxaloacetate inactivate HIF-1alpha decay in a manner sel
150 AP as well as glyceraldehyde 3-phosphate and oxaloacetate inhibited activity of both yeast and human
151 zed O(2) flux likely due at least in part to oxaloacetate inhibition of succinate dehydrogenase.
156 Synthesis of phosphoenolpyruvate (PEP) from oxaloacetate is an absolute requirement for gluconeogene
157 d (ii) intrinsic inhibition of Complex II by oxaloacetate is an inherent mechanism that protects agai
158 e presence of oxamate, the apparent K(m) for oxaloacetate is artificially suppressed (from 15 to 4-5
160 ation rate, which suggests that an excess of oxaloacetate is converted to aspartate and reintroduced
163 H) catalyzed oxidation/reduction of L-malate/oxaloacetate is pH-dependent due to the proton generated
165 lycolysis; (c) the majority of the cytosolic oxaloacetate is synthesized via anaplerotic carboxylatio
166 random, suggesting that the enol tautomer of oxaloacetate is the product; this expectation was confir
167 to the discovery that PA4872 decarboxylates oxaloacetate (kcat = 7500 s(-1) and Km = 2.2 mM) and 3-m
169 dentified (2R)-ethyl, (3S)-methylmalate, and oxaloacetate [likely to bind as the hydrate, C(2)(OH)(2)
170 tabolic end products of lignin (pyruvate and oxaloacetate) must enter the tricarboxylic acid (TCA) cy
171 c enzyme in the phosphoenolpyruvate-pyruvate-oxaloacetate node that is a central switch point for car
174 he crystal structure of AaCS, complexed with oxaloacetate (OAA) and the inhibitor carboxymethyldethia
175 recognition of phosphoenolpyruvate (PEP) and oxaloacetate (OAA) by cytosolic phosphoenolpyruvate carb
180 y intriguing condensation of acetyl-CoA with oxaloacetate (OAA) to form citryl-CoA and the subsequent
181 uconeogenesis by conversion of mitochondrial oxaloacetate (OAA) to phosphoenolpyruvate, regulates glu
182 cinate dehydrogenase oxidizes malate to enol-oxaloacetate (OAA), a metabolically inactive form of OAA
187 gative charge of the substrate side-chain of oxaloacetate or alpha-ketomalonate, charge repulsion wou
189 talysis, such as the conversion of malate to oxaloacetate or the activation of the toxin 3-nitropropi
192 zes of amino acids derived from pyruvate and oxaloacetate, polyamine precursors, and compatible solut
193 pathways, including pyruvate, glutamate and oxaloacetate pools, and urea production from arginine, w
198 analyses with succinate, fumarate, L-malate, oxaloacetate, pyruvate and D- and L-2HG support the kine
199 ate, succinate, 2-hydroxyglutarate, citrate, oxaloacetate, pyruvate, isocitrate, and lactate using a
201 catalyzes the readily reversible reaction of oxaloacetate reversible malate using either NADH or NADP
203 that in glucose grown cells, both the malate/oxaloacetate shuttle and a glycerol-3-phosphate dehydrog
207 es identified in PCS, destabilization of the oxaloacetate substrate carbonyl and stabilization of the
208 ained decarboxylase activity for the smaller oxaloacetate substrate, which is not inhibited by excess
209 Burkholderia species utilize acetyl-CoA and oxaloacetate, substrates for citrate synthase in the TCA
210 ble alpha-ketoglutarate, but not pyruvate or oxaloacetate, suggesting an important role for reductive
211 decrease in malic acid, and lower amounts of oxaloacetate, suggesting that malate metabolism plays an
213 In Methanothermobacter thermautotrophicus, oxaloacetate synthesis is a major and essential CO(2)-fi
214 is presented that, in Methanosarcina barkeri oxaloacetate synthesis, an essential and major CO(2) fix
218 results and the existence of an alternative oxaloacetate synthesizing enzyme phosphoenolpyruvate car
219 This methanogenic archaeon possesses two oxaloacetate-synthesizing enzymes, pyruvate carboxylase
221 tenuated by addition of the energy substrate oxaloacetate, the activator of pyruvate dehydrogenase, d
223 gATP, the oxamate-induced decarboxylation of oxaloacetate, the phosphorylation of MgADP by carbamoyl
224 determined for the forward reaction to form oxaloacetate, the reverse reaction to form MgATP, the ox
225 sion reduced TCA cycle activity and diverted oxaloacetate, the substrate of CS, into production of th
226 gest that activation of the first substrate, oxaloacetate, through carbonyl bond polarization, not ju
228 th the portion of the citric acid cycle from oxaloacetate to alpha-ketoglutarate via cis-aconitate.
229 An efficient prebiotic transformation of oxaloacetate to aspartate via N-carbamoyl aspartate enab
231 lyase, ultimately regenerating mitochondrial oxaloacetate to complete this non-canonical TCA cycle.
232 e base, its failure to further condense with oxaloacetate to form a sulfur-less analog of citryl-coen
234 (PEPCK), forward TCA cycle flux of [4-(13)C]oxaloacetate to generate (13)CO(2) at isocitrate dehydro
235 eir decarboxylation enables the reduction of oxaloacetate to malate and of fumarate to succinate, whe
236 rease the rate of the coupled L-aspartate to oxaloacetate to malate sequence only if the direct metab
237 f the enzymatic conversion of hyperpolarized oxaloacetate to malate, the two signal components are se
238 atalyzed by pyruvate carboxylase will supply oxaloacetate to mitochondrial aspartate aminotransferase
242 , the malate dehydrogenase 1 (MDH1)-mediated oxaloacetate-to-malate flux is reversed and elevated in
244 can be productively metabolized by glutamate oxaloacetate transaminase (GOT) to maintain cellular ene
245 s work demonstrated the ability of glutamate oxaloacetate transaminase (GOT) to metabolize neurotoxic
246 e, and associated enzymes, such as glutamate-oxaloacetate transaminase (GOT1), glutamate-pyruvate tra
247 uced significant increase in serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruva
248 role for glutamate metabolism and glutamate oxaloacetate transaminase 1 (GOT1)-dependent redox balan
252 C-transformed cells depend on both glutamate-oxaloacetate transaminase and glutamate dehydrogenase to
256 to the mitochondria and cytoplasm, glutamate oxaloacetate transaminases (GOT), and malate dehydrogena
257 ansported via malate, which when oxidized to oxaloacetate, transfers an electron pair to reduce NAD t
258 t understanding would not have predicted the oxaloacetate transforming activity of Ser101Leu102 or th
261 sults suggest that the beneficial effects of oxaloacetate treatment in SOD1(G93A) mice may reflect th
265 ing cataplerotic decarboxylation of [4-(13)C]oxaloacetate via phosphoenolpyruvate carboxykinase (PEPC
266 se (DET0724-0727) and pyruvate conversion to oxaloacetate via pyruvate carboxylase (DET0119-0120).
272 bstrate analog: the gem-diol of 3,3-difluoro-oxaloacetate) was determined for the purpose of identify
274 protein could account for the channeling of oxaloacetate we observed with the yeast fusion protein.
275 late through protocatechuate to pyruvate and oxaloacetate were demonstrated in cells or cell extracts
276 -hydroxyoctadecadienoic acid, glutamine, and oxaloacetate were higher after the WG diet than after th
277 oglutarate, succinate, fumarate, malate, and oxaloacetate) were tested for their influence on AOX1A,
278 boxylase were less effective competitors for oxaloacetate when precipitated citrate synthase and mito
280 liberated enzymatically by transamination to oxaloacetate with aspartate aminotransferase and then de
282 IL23A expression by yielding acetyl-CoA and oxaloacetate, with the latter one supporting glycolysis