3a,7b,12a-Trihydroxyoxocholanyl-Glycine
3a,7b,12a-Trihydroxyoxocholanyl-Glycine is an acyl glycine and a bile acid-glycine conjugate. It is a secondary bile acid produced by the action of enzymes existing in the microbial flora of the colonic environment. In hepatocytes, both primary and secondary bile acids undergo amino acid conjugation at the C-24 carboxylic acid on the side chain, and almost all bile acids in the bile duct therefore exist in a glycine conjugated form (PMID:16949895 ). 3a,7b,12a-Trihydroxyoxocholanyl-Glycine is a specific ketonic bile acid found in the urine of infants during the neonatal period. Bile acids are steroid acids found predominantly in bile of mammals. The distinction between different bile acids is minute, depends only on presence or absence of hydroxyl groups on positions 3, 7, and 12.
Structure for HMDB00331 (3a,7b,12a-Trihydroxyoxocholanyl-Glycine)
C26H43NO6
465.6227
465.309038113
2-[(4R)-4-[(1S,2S,5R,7S,9S,10R,11S,14R,15R,16S)-5,9,16-trihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-14-yl]pentanamido]acetic acid
[(4R)-4-[(1S,2S,5R,7S,9S,10R,11S,14R,15R,16S)-5,9,16-trihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-14-yl]pentanamido]acetic acid
68753-51-5
RFDAIACWWDREDC-IFZPJRIXSA-N
Not classified
Expected but not Quantified
Solid
Not Available
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None
None
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FDB021956
Not Available
24850145
Not Available
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HMDB00331
HMDB00331
Not Available
44263376
Not Available
Not Available
- Goto T, Myint KT, Sato K, Wada O, Kakiyama G, Iida T, Hishinuma T, Mano N, Goto J: LC/ESI-tandem mass spectrometric determination of bile acid 3-sulfates in human urine 3beta-Sulfooxy-12alpha-hydroxy-5beta-cholanoic acid is an abundant nonamidated sulfate. J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Feb 1;846(1-2):69-77. Epub 2006 Sep 1. [PubMed:16949895 ]
Enzymes
- General function:
- Involved in glycine N-acyltransferase activity
- Specific function:
- Mitochondrial acyltransferase which transfers an acyl group to the N-terminus of glycine and glutamine, although much less efficiently. Can conjugate numerous substrates to form a variety of N-acylglycines, with a preference for benzoyl-CoA over phenylacetyl-CoA as acyl donors. Thereby detoxify xenobiotics, such as benzoic acid or salicylic acid, and endogenous organic acids, such as isovaleric acid.
- Gene Name:
- GLYAT
- Uniprot ID:
- Q6IB77
- Molecular weight:
- 18506.33
- General function:
- Involved in glycine N-acyltransferase activity
- Specific function:
- Acyltransferase which transfers an acyl group to the N-terminus of glutamine. Can use phenylacetyl-CoA as an acyl donor.
- Gene Name:
- GLYATL1
- Uniprot ID:
- Q969I3
- Molecular weight:
- 35100.895
- General function:
- Involved in glycine N-acyltransferase activity
- Specific function:
- Mitochondrial acyltransferase which transfers the acyl group to the N-terminus of glycine. Conjugates numerous substrates, such as arachidonoyl-CoA and saturated medium and long-chain acyl-CoAs ranging from chain-length C8:0-CoA to C18:0-CoA, to form a variety of N-acylglycines. Shows a preference for monounsaturated fatty acid oleoyl-CoA (C18:1-CoA) as an acyl donor. Does not exhibit any activity toward C22:6-CoA and chenodeoxycholoyl-CoA, nor toward serine or alanine.
- Gene Name:
- GLYATL2
- Uniprot ID:
- Q8WU03
- Molecular weight:
- 34277.055
- General function:
- Involved in glycine N-acyltransferase activity
- Specific function:
- Acyltransferase which transfers the acyl group to the N- terminus of glycine
- Gene Name:
- GLYATL3
- Uniprot ID:
- Q5SZD4
- Molecular weight:
- 32703.3