| Version |
2.5 |
| Creation Date |
2005-11-16 15:48:42 |
| Update Date |
2009-06-19 19:36:30 |
| Accession Number |
HMDB00130 |
| Secondary Accession Numbers |
Not Available |
| Common Name |
Homogentisic acid |
| Description |
An intermediate of the metabolic breakdown of tyrosine and phenylalanine; it occurs in the urine in cases of alkaptonuria. (OMIN 203500)
Homogentisic acid is the primary precursor of melanin synthesis in Vibrio cholerae. |
| Synonyms |
- (2,5-dihydroxyphenyl)-Acetate
- (2,5-dihydroxyphenyl)-Acetic acid
- 2,5-Dihydroxy-a-toluate
- 2,5-Dihydroxy-a-toluic acid
- 2,5-Dihydroxy-alpha-toluate
- 2,5-Dihydroxy-alpha-toluic acid
- 2,5-Dihydroxy-benzeneacetate
- 2,5-Dihydroxy-benzeneacetic acid
- 2,5-Dihydroxyphenylacetate
- 2,5-Dihydroxyphenylacetic acid
- Alcapton
- Homogentisate
- Homogentisate acid
- Homogentisinate
- Homogentisinic acid;Melanic acid.
|
| Chemical IUPAC Name |
2-(2,5-dihydroxyphenyl)acetic acid |
| Chemical Formula |
C8H8O4 |
| Chemical Structure |
 |
| Chemical Taxonomy |
| Kingdom |
|
| Super Class |
|
| Class |
|
| Sub Class |
- Miscellaneous catecholamines
|
| Family |
|
| Species |
- phenol or hydroxyhetarene
- carboxylic acid
- aromatic compound
|
| Biofunction |
- Component of Phenylalanine metabolism
- Component of Tyrosine metabolism
|
| Application |
| — |
| Source |
|
|
| Average Molecular Weight |
168.147 |
| Monoisotopic Molecular Weight |
168.042252 |
| Isomeric SMILES |
OC(=O)CC1=C(O)C=CC(O)=C1 |
| Canonical SMILES |
OC(=O)CC1=C(O)C=CC(O)=C1 |
| KEGG Compound ID |
C00544  |
| BioCyc ID |
Not Available |
| BiGG ID |
1485308  |
| Wikipedia Link |
Homogentisic acid  |
| NuGOwiki Link |
HMDB00130  |
| Metagene Link |
HMDB00130  |
| METLIN ID |
331  |
| PubChem Compound |
780  |
| PubChem Substance |
2799  |
| ChEBI ID |
5755  |
| CAS Registry Number |
451-13-8 |
| InChI Identifier |
InChI=1/C8H8O4/c9-6-1-2-7(10)5(3-6)4-8(11)12/h1-3,9-10H,4H2,(H,11,12) |
| Synthesis Reference |
Not Available |
| Melting Point (Experimental) |
153 oC |
| Experimental Water Solubility |
850 mg/mL at 25 oC [BEILSTEIN]
Source: PhysProp
|
| Predicted Water Solubility |
8.10 mg/mL [Predicted by ALOGPS]
Calculated using ALOGPS
|
| Physiological Charge |
-1 |
| State |
Solid |
| Experimental LogP/Hydrophobicity |
0.86 [SANGSTER (1994)]
Source: PhysProp
|
| Predicted LogP/Hydrophobicity |
0.81 [Predicted by ALOGPS]; 0.887 [Predicted by PubChem via XLOGP]
Calculated using ALOGPS
|
| Material Safety Data Sheet (MSDS) |
|
| MOL File |
Show |
| SDF File |
Show |
| PDB File |
Show |
| 2D Structure |
|
| 3D Structure |
|
| Experimental PDB ID |
Not Available |
| Experimental 1H NMR Spectrum |
Download Spectrum Download FID (Bruker) Show Experimental Conditions  |
| Experimental 13C NMR Spectrum |
Not Available |
| Experimental 13C HSQC Spectrum |
Download Spectrum Download FID (Bruker) Show Experimental Conditions  |
| Predicted 1H NMR Spectrum |
Show Image Show Peaklist
|
| Predicted 13C NMR Spectrum |
Show Image Show Peaklist
|
| Mass Spectrum |
|
| Simplified TOCSY Spectrum |
Show Image Show Peaklist |
| BMRB Spectrum |
Show Image Show Peaklist |
| Cellular Location |
|
| Biofluid Location |
|
| Tissue Location |
| Tissue |
References |
| Cartilage |
— |
| Connective Tissue |
— |
| Kidney |
— |
|
| Concentrations (Normal) |
| Biofluid |
Blood |
| Value |
0.043 (0.014 - 0.071) uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Patient information |
Normal |
| Comments |
Not Available |
| References |
- Deutsch JC, Santhosh-Kumar CR: Quantitation of homogentisic acid in normal human plasma. J Chromatogr B Biomed Appl. 1996 Feb 23;677(1):147-51. [PubMed
]
|
| Biofluid |
Urine |
| Value |
0.04 +/- 0.17 umol/mmol creatinine |
| Age |
Infant:0-1 yr old |
| Sex |
Both |
| Patient information |
Normal |
| Comments |
Not Available |
| References |
- Shoemaker JD, Elliott WH: Automated screening of urine samples for carbohydrates, organic and amino acids after treatment with urease. J Chromatogr. 1991 Jan 2;562(1-2):125-38. [PubMed
]
|
| Biofluid |
Urine |
| Value |
1.0 (0.0-2.0) umol/mmol creatinine |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Patient information |
Normal |
| Comments |
Not Available |
| References |
|
|
| Concentrations (Abnormal) |
| Biofluid |
Blood |
| Value |
35.5 (33.0 - 38.0) uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Alkaptonuria |
| Comments |
Not Available |
| References |
- Bory C, Boulieu R, Chantin C, Mathieu M: Diagnosis of alcaptonuria: rapid analysis of homogentisic acid by HPLC. Clin Chim Acta. 1990 Jul;189(1):7-11. [PubMed
]
|
| Biofluid |
Urine |
| Value |
1819 (1134 - 2504) umol/mmol creatinine |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Alkaptonuria |
| Comments |
Not Available |
| References |
- Phornphutkul C, Introne WJ, Perry MB, Bernardini I, Murphey MD, Fitzpatrick DL, Anderson PD, Huizing M, Anikster Y, Gerber LH, Gahl WA: Natural history of alkaptonuria. N Engl J Med. 2002 Dec 26;347(26):2111-21. [PubMed
]
|
| Biofluid |
Urine |
| Value |
> 2780 umol/mmol creatinine |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Alkaptonuria |
| Comments |
Not Available |
| References |
- La Du BN Jr: Are we ready to try to cure alkaptonuria? Am J Hum Genet. 1998 Apr;62(4):765-7. [PubMed
]
|
| Biofluid |
Urine |
| Value |
3000.0 (1000.0-5000.0) umol/mmol creatinine |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Comments |
Not Available |
| References |
|
|
| Associated Disorders |
| Condition |
References |
| Alkaptonuria |
|
|
| OMIM ID |
|
| Pathways |
|
| General References |
- Phornphutkul C, Introne WJ, Perry MB, Bernardini I, Murphey MD, Fitzpatrick DL, Anderson PD, Huizing M, Anikster Y, Gerber LH, Gahl WA: Natural history of alkaptonuria. N Engl J Med. 2002 Dec 26;347(26):2111-21. [PubMed
]
- La Du BN Jr: Are we ready to try to cure alkaptonuria? Am J Hum Genet. 1998 Apr;62(4):765-7. [PubMed
]
- Concepcion Masip T, Banares Baudet F, Traba ML, Rodriguez de Minon Cifuentes JL: [Alkaptonuria, prostatic calculi, and ectopic ureter] Actas Urol Esp. 1997 Feb;21(2):167-70. [PubMed
]
- Ehongo A, Schrooyen M, Pereleux A: [Important bilateral corneal astigmatism in a case of ocular ochronosis] Bull Soc Belge Ophtalmol. 2005;(295):17-21. [PubMed
]
- Deutsch JC, Santhosh-Kumar CR: Quantitation of homogentisic acid in normal human plasma. J Chromatogr B Biomed Appl. 1996 Feb 23;677(1):147-51. [PubMed
]
- Shoemaker JD, Elliott WH: Automated screening of urine samples for carbohydrates, organic and amino acids after treatment with urease. J Chromatogr. 1991 Jan 2;562(1-2):125-38. [PubMed
]
- Janocha S, Wolz W, Srsen S, Srsnova K, Montagutelli X, Guenet JL, Grimm T, Kress W, Muller CR: The human gene for alkaptonuria (AKU) maps to chromosome 3q. Genomics. 1994 Jan 1;19(1):5-8. [PubMed
]
- de Haas V, Carbasius Weber EC, de Klerk JB, Bakker HD, Smit GP, Huijbers WA, Duran M, Poll-The BT: The success of dietary protein restriction in alkaptonuria patients is age-dependent. J Inherit Metab Dis. 1998 Dec;21(8):791-8. [PubMed
]
- Hegedus ZL, Nayak U: Homogentisic acid and structurally related compounds as intermediates in plasma soluble melanin formation and in tissue toxicities. Arch Int Physiol Biochim Biophys. 1994 May-Jun;102(3):175-81. [PubMed
]
- Venkataseshan VS, Chandra B, Graziano V, Steinlauf P, Marquet E, Irmiere V, Needle MA: Alkaptonuria and renal failure: a case report and review of the literature. Mod Pathol. 1992 Jul;5(4):464-71. [PubMed
]
- Bory C, Boulieu R, Chantin C, Mathieu M: Diagnosis of alcaptonuria: rapid analysis of homogentisic acid by HPLC. Clin Chim Acta. 1990 Jul;189(1):7-11. [PubMed
]
- Wikipedia

|
| Metabolic Enzymes |
- Homogentisate 1,2-dioxygenase
- cDNA FLJ76150, highly similar to Homo sapiens 4-hydroxyphenylpyruvate dioxygenase
|
|
Enzyme 1
[top]
|
| Enzyme 1 ID |
6123 |
| Enzyme 1 Name |
Homogentisate 1,2-dioxygenase |
| Enzyme 1 Synonyms |
- Homogentisicase
- Homogentisate oxygenase
- Homogentisic acid oxidase
|
| Enzyme 1 Gene Name |
HGD |
| Enzyme 1 Protein Sequence |
>Homogentisate 1,2-dioxygenase
MAELKYISGFGNECSSEDPRCPGSLPEGQNNPQVCPYNLYAEQLSGSAFTCPRSTNKRSW
LYRILPSVSHKPFESIDEGHVTHNWDEVDPDPNQLRWKPFEIPKASQKKVDFVSGLHTLC
GAGDIKSNNGLAIHIFLCNTSMENRCFYNSDGDFLIVPQKGNLLIYTEFGKMLVQPNEIC
VIQRGMRFSIDVFEETRGYILEVYGVHFELPDLGPIGANGLANPRDFLIPIAWYEDRQVP
GGYTVINKYQGKLFAAKQDVSPFNVVAWHGNYTPYKYNLKNFMVINSVAFDHADPSIFTV
LTAKSVRPGVAIADFVIFPPRWGVADKTFRPPYYHRNCMSEFMGLIRGHYEAKQGGFLPG
GGSLHSTMTPHGPDADCFEKASKVKLAPERIADGTMAFMFESSLSLAVTKWGLKASRCLD
ENYHKCWEPLKSHFTPNSRNPAEPN
|
| Enzyme 1 Number of Residues |
445 |
| Enzyme 1 Molecular Weight |
49973 |
| Enzyme 1 Theoretical pI |
7.00 |
| Enzyme 1 GO Classification |
| Function |
- catalytic activity
- homogentisate 1,2-dioxygenase activity
- oxidoreductase activity
- oxidoreductase activity, acting on single donors with incorporation of molecular oxygen
- oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen
|
| Process |
- L-phenylalanine catabolism
- L-phenylalanine metabolism
- amino acid and derivative metabolism
- amino acid metabolism
- aromatic amino acid family metabolism
- cellular metabolism
- metabolism
- physiological process
- tyrosine metabolism
|
| Component |
| — |
|
| Enzyme 1 General Function |
Secondary metabolites biosynthesis, transport and catabolism |
| Enzyme 1 Specific Function |
Homogentisate + O(2) = 4-maleylacetoacetate |
| Enzyme 1 Pathways |
|
| Enzyme 1 Reactions |
- homogentisate + O2 = 4-maleylacetoacetate
|
| Enzyme 1 Pfam Domain Function |
|
| Enzyme 1 Signals |
|
| Enzyme 1 Transmembrane Regions |
|
| Enzyme 1 Essentiality |
Not Available |
| Enzyme 1 GenBank ID Protein |
1616743  |
| Enzyme 1 UniProtKB/Swiss-Prot ID |
Q93099  |
| Enzyme 1 UniProtKB/Swiss-Prot Entry Name |
HGD_HUMAN  |
| Enzyme 1 PDB ID |
1EYB  |
| Enzyme 1 PDB File |
Show |
| Enzyme 1 3D Structure |
|
| Enzyme 1 Cellular Location |
Not Available |
| Enzyme 1 Gene Sequence |
>1338 bp
ATGGCTGAGTTAAAGTACATTTCTGGATTTGGGAATGAGTGTTCTTCAGAGGATCCTCGC
TGCCCAGGTTCCCTGCCAGAAGGACAGAATAATCCTCAGGTCTGCCCCTACAATCTCTAT
GCTGAGCAGCTCTCAGGATCGGCTTTCACTTGTCCACGGAGCACCAATAAGAGAAGCTGG
CTGTATAGGATTCTACCTTCAGTTTCTCACAAGCCCTTTGAATCCATTGACGAAGGCCAT
GTCACTCACAACTGGGATGAAGTTGATCCTGATCCTAACCAGCTTAGATGGAAACCATTT
GAGATTCCAAAAGCATCTCAGAAGAAAGTAGACTTTGTGAGTGGCCTGCATACCTTGTGT
GGAGCTGGAGACATAAAGTCTAACAATGGGCTTGCTATCCACATTTTCCTCTGCAATACC
TCCATGGAGAACAGATGCTTTTACAATTCAGATGGGGACTTCTTGATTGTTCCGCAGAAA
GGGAACCTTCTCATTTACACCGAGTTTGGCAAGATGCTTGTACAGCCCAATGAGATCTGC
GTCATTCAGAGAGGAATGCGGTTCAGCATAGATGTCTTTGAGGAGACCAGGGGCTACATC
TTGGAGGTCTATGGTGTCCACTTTGAGTTACCTGACCTTGGACCAATTGGGGCCAATGGC
TTGGCCAATCCTCGTGATTTCTTGATACCCATTGCCTGGTATGAGGATCGCCAAGTACCA
GGTGGTTACACGGTCATTAATAAATACCAGGGCAAGCTGTTTGCTGCCAAACAGGATGTC
TCCCCGTTCAATGTTGTGGCCTGGCACGGGAATTATACACCCTACAAGTACAACCTGAAG
AATTTCATGGTTATCAACTCAGTGGCCTTTGACCATGCAGACCCATCCATTTTCACAGTA
TTGACTGCTAAGTCTGTCCGCCCTGGAGTGGCCATTGCTGATTTTGTCATCTTCCCACCT
CGATGGGGGGTTGCTGATAAGACCTTCAGGCCTCCTTATTACCATAGGAACTGCATGAGT
GAGTTCATGGGACTCATCCGAGGTCACTATGAGGCAAAGCAAGGTGGGTTCCTGCCAGGG
GGAGGGAGTCTACACAGCACAATGACCCCCCATGGACCTGATGCTGACTGCTTTGAGAAG
GCCAGCAAGGTCAAGCTGGCACCTGAGAGGATTGCCGATGGCACCATGGCATTTATGTTT
GAATCATCTTTAAGTCTGGCGGTCACAAAGTGGGGACTCAAGGCCTCCAGGTGTTTGGAT
GAGAACTACCACAAGTGCTGGGAGCCACTCAAGAGCCACTTCACTCCCAACTCCAGGAAC
CCAGCAGAACCTAATTGA
|
| Enzyme 1 GenBank Gene ID |
U63008  |
| Enzyme 1 GeneCard ID |
HGD  |
| Enzyme 1 GenAtlas ID |
HGD  |
| Enzyme 1 HGNC ID |
HGNC:4892  |
| Enzyme 1 Chromosome Location |
3 |
| Enzyme 1 Locus |
3q13.33 |
| Enzyme 1 SNPs |
SNPJam Report  |
| Enzyme 1 General References |
- Fernandez-Canon JM, Granadino B, Beltran-Valero de Bernabe D, Renedo M, Fernandez-Ruiz E, Penalva MA, Rodriguez de Cordoba S: The molecular basis of alkaptonuria. Nat Genet. 1996 Sep;14(1):19-24. [PubMed
]
- Granadino B, Beltran-Valero de Bernabe D, Fernandez-Canon JM, Penalva MA, Rodriguez de Cordoba S: The human homogentisate 1,2-dioxygenase (HGO) gene. Genomics. 1997 Jul 15;43(2):115-22. [PubMed
]
- Titus GP, Mueller HA, Burgner J, Rodriguez De Cordoba S, Penalva MA, Timm DE: Crystal structure of human homogentisate dioxygenase. Nat Struct Biol. 2000 Jul;7(7):542-6. [PubMed
]
- Gehrig A, Schmidt SR, Muller CR, Srsen S, Srsnova K, Kress W: Molecular defects in alkaptonuria. Cytogenet Cell Genet. 1997;76(1-2):14-6. [PubMed
]
- Beltran-Valero de Bernabe D, Granadino B, Chiarelli I, Porfirio B, Mayatepek E, Aquaron R, Moore MM, Festen JJ, Sanmarti R, Penalva MA, de Cordoba SR: Mutation and polymorphism analysis of the human homogentisate 1, 2-dioxygenase gene in alkaptonuria patients. Am J Hum Genet. 1998 Apr;62(4):776-84. [PubMed
]
- Higashino K, Liu W, Ohkawa T, Yamamoto T, Fukui K, Ohno M, Imanishi H, Iwasaki A, Amuro Y, Hada T: A novel point mutation associated with alkaptonuria. Clin Genet. 1998 Mar;53(3):228-9. [PubMed
]
- Beltran-Valero de Bernabe D, Jimenez FJ, Aquaron R, Rodriguez de Cordoba S: Analysis of alkaptonuria (AKU) mutations and polymorphisms reveals that the CCC sequence motif is a mutational hot spot in the homogentisate 1,2 dioxygenase gene (HGO). Am J Hum Genet. 1999 May;64(5):1316-22. [PubMed
]
- Felbor U, Mutsch Y, Grehn F, Muller CR, Kress W: Ocular ochronosis in alkaptonuria patients carrying mutations in the homogentisate 1,2-dioxygenase gene. Br J Ophthalmol. 1999 Jun;83(6):680-3. [PubMed
]
- Muller CR, Fregin A, Srsen S, Srsnova K, Halliger-Keller B, Felbor U, Seemanova E, Kress W: Allelic heterogeneity of alkaptonuria in Central Europe. Eur J Hum Genet. 1999 Sep;7(6):645-51. [PubMed
]
- Beltran-Valero de Bernabe D, Peterson P, Luopajarvi K, Matintalo P, Alho A, Konttinen Y, Krohn K, Rodriguez de Cordoba S, Ranki A: Mutational analysis of the HGO gene in Finnish alkaptonuria patients. J Med Genet. 1999 Dec;36(12):922-3. [PubMed
]
|
| Enzyme 1 Metabolite References |
Not Available |
|
Enzyme 2
[top]
|
| Enzyme 2 ID |
13081 |
| Enzyme 2 Name |
cDNA FLJ76150, highly similar to Homo sapiens 4-hydroxyphenylpyruvate dioxygenase |
| Enzyme 2 Synonyms |
- HPD, mRNA
- 4-hydroxyphenylpyruvate dioxygenase, isoform CRA_b
|
| Enzyme 2 Gene Name |
HPD |
| Enzyme 2 Protein Sequence |
>cDNA FLJ76150, highly similar to Homo sapiens 4-hydroxyphenylpyruvate dioxygenase
MTTYSDKGAKPERGRFLHFHSVTFWVGNAKQAASFYCSKMGFEPLAYRGLETGSREVVSH
VIKQGKIVFVLSSALNPWNKEMGDHLVKHGDGVKDIAFEVEDCDYIVQKARERGAKIMRE
PWVEQDKFGKVKFAVLQTYGDTTHTLVEKMNYIGQFLPGYEAPAFMDPLLPKLPKCSLEM
IDHIVGNQPDQEMVSASEWYLKNLQFHRFWSVDDTQVHTEYSSLRSIVVANYEESIKMPI
NEPAPGKKKSQIQEYVDYNGGAGVQHIALKTEDIITAIRHLRERGLEFLSVPSTYYKQLR
EKLKTAKIKVKENIDALEELKILVDYDEKGYLLQIFTKPVQDRPTLFLEVIQRHNHQGFG
AGNFNSLFKAFEEEQNLRGNLTNMETNGVVPGM
|
| Enzyme 2 Number of Residues |
393 |
| Enzyme 2 Molecular Weight |
44935 |
| Enzyme 2 Theoretical pI |
7.01 |
| Enzyme 2 GO Classification |
Not Available |
| Enzyme 2 General Function |
Amino acid transport and metabolism |
| Enzyme 2 Specific Function |
Not Available |
| Enzyme 2 Pathways |
Not Available |
| Enzyme 2 Reactions |
Not Available |
| Enzyme 2 Pfam Domain Function |
Not Available |
| Enzyme 2 Signals |
|
| Enzyme 2 Transmembrane Regions |
|
| Enzyme 2 Essentiality |
Not Available |
| Enzyme 2 GenBank ID Protein |
158255088  |
| Enzyme 2 UniProtKB/Swiss-Prot ID |
A8K461  |
| Enzyme 2 UniProtKB/Swiss-Prot Entry Name |
A8K461_HUMAN  |
| Enzyme 2 PDB ID |
1SQI  |
| Enzyme 2 PDB File |
Show |
| Enzyme 2 3D Structure |
|
| Enzyme 2 Cellular Location |
Not Available |
| Enzyme 2 Gene Sequence |
Not Available |
| Enzyme 2 GenBank Gene ID |
AK290826  |
| Enzyme 2 GeneCard ID |
A8K461  |
| Enzyme 2 GenAtlas ID |
Not Available |
| Enzyme 2 HGNC ID |
Not Available |
| Enzyme 2 Chromosome Location |
Not Available |
| Enzyme 2 Locus |
Not Available |
| Enzyme 2 SNPs |
SNPJam Report  |
| Enzyme 2 General References |
Not Available |
| Enzyme 2 Metabolite References |
Not Available |