Hmdb loader
Identification
HMDB Protein ID HMDBP12301
Secondary Accession Numbers None
Name Aldo-keto reductase family 1 member A1
Synonyms
  1. Alcohol dehydrogenase [NADP(+)]
  2. Aldehyde reductase
  3. Glucuronate reductase
  4. Glucuronolactone reductase
Gene Name AKR1A1
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Catalyzes the NADPH-dependent reduction of a wide variety of carbonyl-containing compounds to their corresponding alcohols. Displays enzymatic activity towards endogenous metabolites such as aromatic and aliphatic aldehydes, ketones, monosaccharides and bile acids, with a preference for negatively charged substrates, such as glucuronate and succinic semialdehyde (By similarity). Plays an important role in ascorbic acid biosynthesis by catalyzing the reduction of D-glucuronic acid and D-glucurono-gamma-lactone (By similarity). Functions as a detoxifiying enzyme by reducing a range of toxic aldehydes. Reduces methylglyoxal and 3-deoxyglucosone, which are present at elevated levels under hyperglycemic conditions and are cytotoxic. Involved also in the detoxification of lipid-derived aldehydes like acrolein (By similarity). Plays a role in the activation of procarcinogens, such as polycyclic aromatic hydrocarbon trans-dihydrodiols, and in the metabolism of various xenobiotics and drugs (By similarity). Displays no reductase activity towards retinoids (PubMed:12732097).
Pathways
  • Ascorbate and aldarate metabolism
  • Biosynthesis of cofactors
  • Chemical carcinogenesis - reactive oxygen species
  • Gluconeogenesis
  • Glycerolipid metabolism
  • Pentose and glucuronate interconversions
  • Pyruvate metabolism
Reactions Not Available
GO Classification
Biological Process
cellular detoxification of aldehyde
aldehyde catabolic process
D-glucuronate catabolic process
L-ascorbic acid biosynthetic process
Cellular Component
cytosol
apical plasma membrane
Molecular Function
alditol:NADP+ 1-oxidoreductase activity
allyl-alcohol dehydrogenase activity
D-threo-aldose 1-dehydrogenase activity
glucuronolactone reductase activity
glycerol dehydrogenase [NADP+] activity
methylglyoxal reductase (NADPH-dependent, acetol producing)
mevaldate reductase (NADPH) activity
L-glucuronate reductase activity
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues 325
Molecular Weight 36581.71
Theoretical pI 6.996
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID P50578
UniProtKB/Swiss-Prot Entry Name AK1A1_PIG
PDB IDs
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Flynn TG, Green NC, Bhatia MB, el-Kabbani O: Structure and mechanism of aldehyde reductase. Adv Exp Med Biol. 1995;372:193-201. doi: 10.1007/978-1-4615-1965-2_25. [PubMed:7484379 ]
  2. el-Kabbani O, Judge K, Ginell SL, Myles DA, DeLucas LJ, Flynn TG: Structure of porcine aldehyde reductase holoenzyme. Nat Struct Biol. 1995 Aug;2(8):687-92. doi: 10.1038/nsb0895-687. [PubMed:7552731 ]
  3. el-Kabbani O, Carper DA, McGowan MH, Devedjiev Y, Rees-Milton KJ, Flynn TG: Studies on the inhibitor-binding site of porcine aldehyde reductase: crystal structure of the holoenzyme-inhibitor ternary complex. Proteins. 1997 Oct;29(2):186-92. doi: 10.1002/(sici)1097-0134(199710)29:2<186::aid-prot6>3.0.co;2-b. [PubMed:9329083 ]
  4. Crosas B, Hyndman DJ, Gallego O, Martras S, Pares X, Flynn TG, Farres J: Human aldose reductase and human small intestine aldose reductase are efficient retinal reductases: consequences for retinoid metabolism. Biochem J. 2003 Aug 1;373(Pt 3):973-9. doi: 10.1042/BJ20021818. [PubMed:12732097 ]