4-Hydroxyphenylpyruvic acid
IUPAC 名称
3-hydroxy-2-oxo-3-phenylpropanoic acid
描述
4-Hydroxyphenylpyruvic acid (4-HPPA) is a keto acid. It is a product of the enzyme (R)-4-hydroxyphenyllactate dehydrogenase [EC 1.1.1.222] and is formed during tyrosine metabolism (KEGG). There are two isomers of HPPA, specifically 4HPPA and 3HPPA, of which 4HPPA is the most common. The enzyme 4-hydroxyphenylpyruvic acid dioxygenase (HPD) catalyzes the reaction of 4-hydroxyphenylpyruvic acid to homogentisic acid in the tyrosine catabolism pathway. A deficiency in the catalytic activity of HPD is known to lead to tyrosinemia type III, an autosomal recessive disorder characterized by elevated levels of blood tyrosine and massive excretion of tyrosine derivatives into urine. It has been shown that hawkinsinuria, an autosomal dominant disorder characterized by the excretion of 'hawkinsin,' may also be a result of HPD deficiency (PMID: 11073718). [HMDB]
异构
OC(C(=O)C(O)=O)C1=CC=CC=C1
InChI标识符
InChI=1S/C9H8O4/c10-7(8(11)9(12)13)6-4-2-1-3-5-6/h1-5,7,10H,(H,12,13)
键
ZHLWCBHWYUISFY-UHFFFAOYSA-N