Oxalosuccinic acid

Oxalosuccinic acid
Names

IUPAC name 1-Oxopropane-1,2,3-tricarboxylic acid
Identifiers
CAS Number	1948-82-9^Y
ChEBI	CHEBI:7815^N
ChemSpider	947^N
Jmol interactive 3D	Image
KEGG	C05379^N
PubChem	972
InChI InChI=1S/C6H6O7/c7-3(8)1-2(5(10)11)4(9)6(12)13/h2H,1H2,(H,7,8)(H,10,11)(H,12,13)^N Key: UFSCUAXLTRFIDC-UHFFFAOYSA-N^N InChI=1/C6H6O7/c7-3(8)1-2(5(10)11)4(9)6(12)13/h2H,1H2,(H,7,8)(H,10,11)(H,12,13) Key: UFSCUAXLTRFIDC-UHFFFAOYAK
SMILES C(C(C(=O)C(=O)O)C(=O)O)C(=O)O
Properties
Chemical formula	C₆H₆O₇
Molar mass	190.108
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

Oxalosuccinic acid is a substrate of the citric acid cycle. It is acted upon by isocitrate dehydrogenase. Salts and esters of oxalosuccinic acid are known as oxalosuccinates.

Oxalosuccinic acid/oxalosuccinate is an unstable 6-carbon intermediate in the tricarboxylic acid cycle. It's an alpha-keto compound, formed during the oxidative decarboxylation of isocitrate to alpha-ketoglutarate, which is catalyzed by the enzyme isocitrate dehydrogenase. Oxalosuccinate never leaves the active site of the enzyme, however it's unstable and immediately undergoes decarboxylation to produce the 5-carbon compound, alpha-ketoglutarate.

Citric acid cycle metabolic pathway
			Oxaloacetate			Malate			Fumarate			Succinate			Succinyl-CoA


Acetyl-CoA				NADH + H⁺	NAD⁺			H₂O		FADH₂	FAD		CoA + ATP(GTP)	P_i + ADP(GDP)
	+	H₂O														NADH + H⁺ + CO₂
		CoA														NAD⁺
					H₂O		H₂O			NAD(P)⁺	NAD(P)H + H⁺			CO₂


			Citrate			cis-Aconitate			Isocitrate			Oxalosuccinate			α-Ketoglutarate

This article is issued from Wikipedia - version of the Wednesday, July 29, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.