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Sep. 10, 2014:
A total of 174 experimentally verified S-nitrosylation sites on 94 S-nitrosylated proteins from individualized human colorectal cancer tissues using a label-free quantitation strategy.

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Protein Name: Aldo-keto reductase family 1 member A1

UniprotKB/SwissProt ID: Q9JII6 (Q9JII6)

Gene Name: Akr1a1

Organism: Mus musculus (Mouse)

Function: Catalyzes the NADPH-dependent reduction of a wide variety of carbonyl-containing compounds to their corresponding alcohols (PubMed:15769935, PubMed:20410296, PubMed:22820017). 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 (PubMed:15769935, PubMed:20410296, PubMed:22820017). Plays an important role in ascorbic acid biosynthesis by catalyzing the reduction of D-glucuronic acid and D-glucurono-gamma-lactone (PubMed:15769935, PubMed:20410296, PubMed:22820017). Functions as a detoxifiying enzyme by reducing a range of toxic aldehydes (By similarity). Reduces methylglyoxal and 3-deoxyglucosone, which are present at elevated levels under hyperglycemic conditions and are cytotoxic (By similarity). Involved 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). Also acts as an inhibitor of protein S-nitrosylation by mediating degradation of S-nitroso-coenzyme A (S-nitroso-CoA), a cofactor required to S-nitrosylate proteins (PubMed:25512491, PubMed:30487609). S-nitroso-CoA reductase activity is involved in reprogramming intermediary metabolism in renal proximal tubules, notably by inhibiting protein S-nitrosylation of isoform 2 of PKM (PKM2) (PubMed:30487609). Also acts as a S-nitroso-glutathione reductase by catalyzing the NADPH-dependent reduction of S-nitrosoglutathione (PubMed:31649033). Displays no reductase activity towards retinoids (By similarity)

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Cytoplasm, cytosol. Apical cell membrane

Graphical Visualization of S-nitrosylation Sites:
InterPro ID Domain Name
IPR020471 AKR
IPR044481 AKR1A
IPR018170 Aldo/ket_reductase_CS
IPR023210 NADP_OxRdtase_dom
IPR036812 NADP_OxRdtase_dom_sf

The S-nitrosylation sites of Q9JII6

No. Position S-nitrosylated Peptide Secondary Structure of S-nitrosylated Peptide Solvent Accessibility of nitrosylated Site PubMed ID
1 260 LRWQVQRKVI C IPKSINPSRI  CCCCEEEECC C CCCCEEEEEC  4.95% 22178444
21278135
2 46 ALSAGYRHID C ASVYGNETEI  CCCCEEEECC C CCCCEEEEEC  2.77% 22178444