Isocitric acid

Isocitric acid
Names

IUPAC name 1-Hydroxypropane-1,2,3-tricarboxylic acid
Identifiers
CAS Number	320-77-4^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:30887^Y
ChemSpider	1161^Y
DrugBank	DB01727^N°
ECHA InfoCard	100.005.713
KEGG	C00311^Y
MeSH	Isocitrate
PubChem CID	1198
InChI InChI=1S/C6H8O7/c7-3(8)1-2(5(10)11)4(9)6(12)13/h2,4,9H,1H2,(H,7,8)(H,10,11)(H,12,13)^Y Key: ODBLHEXUDAPZAU-UHFFFAOYSA-N^Y InChI=1/C6H8O7/c7-3(8)1-2(5(10)11)4(9)6(12)13/h2,4,9H,1H2,(H,7,8)(H,10,11)(H,12,13) Key: ODBLHEXUDAPZAU-UHFFFAOYAX
SMILES O=C(O)C(CC(=O)O)C(O)C(=O)O
Properties
Chemical formula	C₆H₈O₇
Molar mass	192.124
Melting point	105 °C (221 °F; 378 K)
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

Isocitric acid is a structural isomer of citric acid. Salts and esters of isocitric acid are known as isocitrates. The isocitrate anion is a substrate of the citric acid cycle. Isocitrate is formed from citrate with the help of the enzyme aconitase, and is acted upon by isocitrate dehydrogenase.

Isocitric acid is commonly used as a marker to detect the authenticity and quality of fruit products, most often citrus juices. In authentic orange juice, for example, the ratio of citric acid to D-isocitric acid is usually less than 130. An isocitric acid value higher than this may be indicative of fruit juice adulteration.^[1]

Interactive pathway map

Click on genes, proteins and metabolites below to link to respective articles. ^{[§ 1]}

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|{{{bSize}}}px|alt=TCA Cycle edit]]

TCA Cycle edit

↑ The interactive pathway map can be edited at WikiPathways: "TCACycle_WP78".

References

↑ Saavedra, L.; Garcia, A.; Barbas, C. (9 June 2000). "Development and validation of a capillary electrophoresis method for direct measurement of isocitric, citric, tartaric and malic acids as adulteration markers in orange juice". Journal of Chromatography A. 881 (1-2): 395–401. PMID 10905722. doi:10.1016/s0021-9673(00)00258-2.

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. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

Isocitric acid

Interactive pathway map

See also

References