Alpha-Ketoisocaproic acid

α-Ketoisocaproic acid
IUPAC name	4-methyl-2-oxopentanoic acid
Other names	4-methyl-2-oxovaleric acid
Identifiers
CAS number	816-66-0 Y
PubChem	3527278
MeSH	Alpha-ketoisocaproic+acid
SMILES	O=C(C(=O)O)CC(C)C
InChI	1/C6H10O3/c1-4(2)3-5(7)6(8)9/h4H,3H2,1-2H3,(H,8,9)
InChI key	BKAJNAXTPSGJCU-UHFFFAOYAG
ChemSpider ID	69
Properties
Molecular formula	C6H10O3
Molar mass	130.14
Y (what is this?)  (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

α-Ketoisocaproic acid is an intermediate in the metabolism of leucine.

v • d • e Amino acid metabolism metabolic intermediates K→acetyl-CoA lysine→ Saccharopine · Allysine · α-Aminoadipic acid · α-Aminoadipate · Glutaryl-CoA · Glutaconyl-CoA · Crotonyl-CoA · β-Hydroxybutyryl-CoA leucine→ α-Ketoisocaproic acid · Isovaleryl-CoA · 3-Methylcrotonyl-CoA · 3-Methylglutaconyl-CoA · HMG-CoA tryptophan→alanine→ N'-Formylkynurenine · Kynurenine · Anthranilic acid · 3-Hydroxykynurenine · 3-Hydroxyanthranilic acid · 2-Amino-3-carboxymuconic semialdehyde · 2-Aminomuconic semialdehyde · 2-Aminomuconic acid · Glutaryl-CoA G G→pyruvate→citrate glycine→serine→ 3-Phosphoglyceric acid glycine→creatine: Glycocyamine · Phosphocreatine · Creatinine G→glutamate→ α-ketoglutarate histidine→ Urocanic acid · Imidazol-4-one-5-propionic acid · Formiminoglutamic acid · Glutamate-1-semialdehyde proline→ 1-Pyrroline-5-carboxylic acid arginine→ Ornithine · Putrescine · Agmatine other cysteine+glutamate→glutathione: γ-Glutamylcysteine G→propionyl-CoA→ succinyl-CoA valine→ α-Ketoisovaleric acid · Isobutyryl-CoA · Methacrylyl-CoA · 3-Hydroxyisobutyryl-CoA · 3-Hydroxyisobutyric acid · 2-Methyl-3-oxopropanoic acid isoleucine→ 2,3-Dihydroxy-3-methylpentanoic acid · 2-Methylbutyryl-CoA · Tiglyl-CoA · 2-Methylacetoacetyl-CoA methionine→ generation of homocysteine: S-Adenosyl methionine · S-Adenosyl-L-homocysteine · Homocysteine conversion to cysteine: Cystathionine · alpha-Ketobutyric acid+Cysteine threonine→ α-Ketobutyric acid propionyl-CoA→ Methylmalonyl-CoA G→fumarate phenylalanine→tyrosine→ 4-Hydroxyphenylpyruvic acid · Homogentisic acid · 4-Maleylacetoacetate G→oxaloacetate see urea cycle Other Cysteine metabolism Cysteine sulfinic acid see also enzymes, disorders

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