Gene Association: NPL

UniProt Search: NPL (PROTEIN_CODING)
Function Description: N-acetylneuraminate pyruvate lyase

found 13 associated metabolites with current gene based on the text mining result from the pubmed database.

N-Glycolylneuraminic acid

(2S,4S,5R,6R)-2,4-dihydroxy-5-(2-hydroxyacetamido)-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid

C11H19NO10 (325.1009)


N-Glycolylneuraminic acid (Neu5Gc) is a widely expressed sialic acid found in most mammalian cells. Although humans are genetically deficient in producing Neu5Gc, small amounts are present in human cells and biofluids. Humans cannot synthesize Neu5Gc because the human gene CMAH is irreversibly mutated, though it is found in apes. This loss of the CMAH gene was estimated to have occurred two to three million years ago, just before the emergence of the genus Homo. A dietary origin of Neu5Gc was suggested by human volunteer studies. These trace amounts of Neu5Gc were determined to come from the consumption of animals in the human diet (i.e. red meats such as lamb, pork, and beef). Neu5Gc can also be found in dairy products, but to a lesser extent. Neu5Gc is not found in poultry and is found in only trace amounts in fish (Wikipedia). Isolated from beef serum KEIO_ID G062

   

Glucosamine 6-phosphate

Phosphoric acid mono-((2R,3S,4R,5R)-5-amino-2,3,4-trihydroxy-6-oxo-hexyl) ester

C6H14NO8P (259.0457)


Glucosamine 6-phosphate (CAS: 3616-42-0) is normally produced in endothelial cells via de novo glucosamine synthesis by the enzyme fructose-6-phosphate amidotransferase and the modulation of this pathway by hyperglycemia and glutamine. Glutamine-fructose-6-phosphate amidotransferase (GFAT) catalyzes the first committed step in the pathway for biosynthesis of hexosamines in mammals.It is a member of the N-terminal nucleophile class of amidotransferases, GFAT transfers the amino group from the L-glutamine amide to D-fructose 6-phosphate, producing glutamic acid and glucosamine 6-phosphate. As glucosamine inhibits endothelial nitric oxide synthesis it has important implications for impaired endothelium-dependent relaxation and vascular dysfunction in diabetes mellitus (PMID:11270676, 11842094). Glucosamine 6-phosphate is normally produced in endothelial cells via the de novo glucosamine synthesis by the enzyme fructose-6-phosphate amidotransferase and the modulation of this pathway by hyperglycemia and glutamine. glutamine-fructose-6-phosphate amidotransferase (GFAT) catalyzes the first committed step in the pathway for biosynthesis of hexosamines in mammals. A member of the N-terminal nucleophile class of amidotransferases, GFAT transfers the amino group from the L-glutamine amide to D-fructose 6-phosphate, producing glutamic acid and glucosamine 6-phosphate. As glucosamine inhibits endothelial nitric oxide synthesis it has important implications for impaired endothelium-dependent relaxation and vascular dysfunction in diabetes mellitus. (PMID 11270676, 11842094) [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G021; [MS2] KO008968 KEIO_ID G021

   

N-Acetyl-D-Glucosamine 6-Phosphate

{[(2R,3S,4R,5R)-5-acetamido-3,4,6-trihydroxyoxan-2-yl]methoxy}phosphonic acid

C8H16NO9P (301.0563)


N-Acetyl-D-Glucosamine 6-Phosphate is an intermediate in the metabolism of Aminosugars. It is a substrate for Glucosamine 6-phosphate N-acetyltransferase. [HMDB] N-Acetyl-D-Glucosamine 6-Phosphate is an intermediate in the metabolism of Aminosugars. It is a substrate for Glucosamine 6-phosphate N-acetyltransferase. KEIO_ID A144

   

N-Acetyl-4-O-acetylneuraminic acid

(2S,4S,5R,6R)-4-(acetyloxy)-5-acetamido-2-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid

C13H21NO10 (351.1165)


N-Acetyl-4-O-acetylneuraminic acid is a component of glycoprotein- and glycolipid-bound sialic acids present in the human erythrocyte membrane (RBC). (PMID: 12527384) [HMDB] N-Acetyl-4-O-acetylneuraminic acid is a component of glycoprotein- and glycolipid-bound sialic acids present in the human erythrocyte membrane (RBC). (PMID: 12527384).

   

N-Acetyl-7-O-acetylneuraminic acid

(2S,4S,5R,6R)-6-[(1R,2R)-1-(Acetyloxy)-2,3-dihydroxypropyl]-2,4-dihydroxy-5-[(1-hydroxyethylidene)amino]oxane-2-carboxylate

C13H21NO10 (351.1165)


N-Acetyl-7-O-acetylneuraminic acid is a component of glycoprotein- and glycolipid-bound sialic acids present in the human erythrocyte membrane (RBC). (PMID: 12527384). N-Acetyl-7-O-acetylneuraminic acid has been detected in basaliomas and normal human skin. (PMID: 11180001). Determination of N-Acetyl-7-O-acetylneuraminic acid in human serum has been obtained by fluorometric high-performance liquid chromatography. (PMID: 2757191). N-Acetyl-7-O-acetylneuraminic acid is a component of glycoprotein- and glycolipid-bound sialic acids present in the human erythrocyte membrane (RBC). (PMID: 12527384)

   

N-Acetyl-9-O-acetylneuraminic acid

(2S,4S,5R,6R)-6-[(1R,2R)-3-(acetyloxy)-1,2-dihydroxypropyl]-5-acetamido-2,4-dihydroxyoxane-2-carboxylic acid

C13H21NO10 (351.1165)


N-Acetyl-9-O-acetylneuraminic acid (alternatively 9-O-acetyl-N-acetylneuraminic acid) is an O acetylated sialic acid identified in human colon by using high-pressure liquid chromatography and gas-liquid chromatography/mass spectrometry (PMID 3623000). It also has been suggested that 9-O-acetyl-N-acetylneuraminic acid is an essential component of the cell surface receptor of influenza C virus (PMID 3700379). 9-O-acetyl-N-acetylneuraminic acid is an O acetylated sialic acid identified in human colon by using high-pressure liquid chromatography and gas-liquid chromatography/mass spectrometry. (PMID 3623000) It also has been suggested that 9-O-acetyl-N-acetylneuraminic acid is an essential component of the cell surface receptor of influenza C virus. (PMID 3700379) [HMDB]

   

2-Deoxy-2,3-dehydro-N-acetylneuraminic acid

3-acetamido-4-hydroxy-2-(1,2,3-trihydroxypropyl)-3,4-dihydro-2H-pyran-6-carboxylic acid

C11H17NO8 (291.0954)


D004791 - Enzyme Inhibitors

   

NeuNGc

(4S,5R,6R)-2,4-dihydroxy-5-(2-hydroxyacetamido)-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid

C11H19NO10 (325.1009)


NeuNGc, also known as N-Glycolylneuraminic acid or Neu5GC, is classified as a member of the N-acylneuraminic acids. N-acylneuraminic acids are neuraminic acids carrying an N-acyl substituent. NeuNGc is considered to be soluble (in water) and acidic

   

Glucosamine 6-phosphate

Glucosamine 6-phosphate

C6H14NO8P (259.0457)


   

N-Glycolylneuraminic acid

N-Glycolyl-Neuraminic acid

C11H19NO10 (325.1009)


   

N-Acetyl-D-Glucosamine 6-Phosphate

N-Acetyl-D-Glucosamine 6-Phosphate

C8H16NO9P (301.0563)


An N-acyl-D-glucosamine 6-phosphate that is the N-acetyl derivative of D-glucosamine 6-phosphate. It is a component of the aminosugar metabolism.

   

N-acetyl-2,3-didehydro-2-deoxyneuraminic acid

N-acetyl-2,3-didehydro-2-deoxyneuraminic acid

C11H17NO8 (291.0954)


D004791 - Enzyme Inhibitors

   

N-Acetyl-9-O-acetylneuraminic acid

N-Acetyl-9-O-acetylneuraminic acid

C13H21NO10 (351.1165)