Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2009-04-06 16:20:20 UTC |
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Update Date | 2022-03-07 02:51:21 UTC |
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HMDB ID | HMDB0012167 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol |
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Description | 4alpha-formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol is a 3-beta-hydroxysterol that is an intermediate in cholesterol biosynthesis I and in cholesterol biosynthesis III (via desmosterol). It is a substrate for C-4 methyl sterol oxidase (SC4MOL) and can be generated from the enzymatic reduction of 4alpha-carboxy-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol or from the enzymatic oxidation of 4alpha-hydroxymethyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol. The sequence of reactions and the types of intermediates in cholesterol biosynthesis II may vary. Alternate routes exist because reduction of the carbon 24,25 double bond on the hydrocarbon side chain of the sterol ring structure by sterol delta24-reductase can occur at multiple points in the pathway, giving rise to different intermediates. These intermediates, with or without a double bond in the hydrocarbon side chain, can serve as substrates for the other enzymes in the pathway. The sequence of reactions and the types of intermediates in cholesterol biosynthesis III (via desmosterol) may vary. Alternate routes exist because reduction of the carbon 24,25 double bond on the hydrocarbon side chain of the sterol ring structure by sterol delta24-reductase can occur at multiple points in the pathway, giving rise to different intermediates. These intermediates, with or without a double bond in the hydrocarbon side chain, can serve as substrates for the other enzymes in the pathway. In cholesterol biosynthesis I, 4alpha-formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol is an intermediate in the conversion of lanosterol to cholesterol. The enzymology of this multistep conversion was largely determined in rat liver and the human pathway is therefore inferred from this work. Indeed, the order of some of the reactions in this pathway may vary. The lanosterol-to-cholesterol conversion involves the oxidative removal of three methyl groups, reduction of double bonds, and migration of the lanosterol double bond to a new position in cholesterol. The reactions in the lanosterol pathway are catalyzed by membrane-bound enzymes. Human genes have been identified for all the enzymes in this pathway and human disorders of cholesterol metabolism have been associated with genetic defects in most of these enzymes. |
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Structure | CC(CCC=C(C)C)C1CCC2C3=C(CC[C@]12C)[C@@]1(C)CC[C@H](O)[C@@](C)(C=O)C1CC3 InChI=1S/C29H46O2/c1-19(2)8-7-9-20(3)22-11-12-23-21-10-13-25-28(5,24(21)14-16-27(22,23)4)17-15-26(31)29(25,6)18-30/h8,18,20,22-23,25-26,31H,7,9-17H2,1-6H3/t20?,22?,23?,25?,26-,27+,28+,29-/m0/s1 |
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Synonyms | Value | Source |
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4a-Formyl-4b-methyl-5a-cholesta-8,24-dien-3b-ol | Generator | 4Α-formyl-4β-methyl-5α-cholesta-8,24-dien-3β-ol | Generator | 4a-Formyl-4beta-methyl-5a-cholesta-8,24-dien-3beta-ol | HMDB | 4alpha-Formyl-4b-methyl-5alpha-cholesta-8,24-dien-3b-ol | HMDB |
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Chemical Formula | C29H46O2 |
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Average Molecular Weight | 426.6743 |
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Monoisotopic Molecular Weight | 426.349780716 |
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IUPAC Name | (2S,5S,6S,15R)-5-hydroxy-2,6,15-trimethyl-14-(6-methylhept-5-en-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-1(10)-ene-6-carbaldehyde |
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Traditional Name | (2S,5S,6S,15R)-5-hydroxy-2,6,15-trimethyl-14-(6-methylhept-5-en-2-yl)tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-1(10)-ene-6-carbaldehyde |
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CAS Registry Number | Not Available |
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SMILES | CC(CCC=C(C)C)C1CCC2C3=C(CC[C@]12C)[C@@]1(C)CC[C@H](O)[C@@](C)(C=O)C1CC3 |
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InChI Identifier | InChI=1S/C29H46O2/c1-19(2)8-7-9-20(3)22-11-12-23-21-10-13-25-28(5,24(21)14-16-27(22,23)4)17-15-26(31)29(25,6)18-30/h8,18,20,22-23,25-26,31H,7,9-17H2,1-6H3/t20?,22?,23?,25?,26-,27+,28+,29-/m0/s1 |
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InChI Key | GFGANDKVOKQAGH-AEWFMJFUSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as triterpenoids. These are terpene molecules containing six isoprene units. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Prenol lipids |
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Sub Class | Triterpenoids |
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Direct Parent | Triterpenoids |
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Alternative Parents | |
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Substituents | - Triterpenoid
- Cholesterol-skeleton
- Cholestane-skeleton
- 3-hydroxysteroid
- 3-beta-hydroxysteroid
- Hydroxysteroid
- Steroid
- Cyclic alcohol
- Secondary alcohol
- Organic oxygen compound
- Organooxygen compound
- Hydrocarbon derivative
- Organic oxide
- Carbonyl group
- Aldehyde
- Alcohol
- Aliphatic homopolycyclic compound
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Molecular Framework | Aliphatic homopolycyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatizedDerivatized |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol GC-MS (Non-derivatized) - 70eV, Positive | splash10-03di-2009300000-32e58ea855a889aaf3f5 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol GC-MS (1 TMS) - 70eV, Positive | splash10-00lr-3002900000-4bb669e7eec0092ae665 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 10V, Positive-QTOF | splash10-0a6r-0003900000-67853237fe0b98fdcd3f | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 20V, Positive-QTOF | splash10-0a4i-5139600000-7c35d3630523d58b613e | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 40V, Positive-QTOF | splash10-0ly9-3139100000-e79fbee59f33674380cf | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 10V, Negative-QTOF | splash10-004i-0001900000-031bc893cf34140f271c | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 20V, Negative-QTOF | splash10-004i-0002900000-e669e90a25079807bc06 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 40V, Negative-QTOF | splash10-0a5a-1009200000-2c6f5c897175f836e3c8 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 10V, Negative-QTOF | splash10-004i-0000900000-e0002f0b464d749332dc | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 20V, Negative-QTOF | splash10-004i-0004900000-358ecd7f3ef2a7100c3d | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 40V, Negative-QTOF | splash10-00di-0007900000-83e4da89a20cc8ab08bb | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 10V, Positive-QTOF | splash10-004i-0009700000-8f5ef82f1ea9dfba85e4 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 20V, Positive-QTOF | splash10-055r-1059200000-e2430a0be44f53b96677 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4alpha-Formyl-4beta-methyl-5alpha-cholesta-8,24-dien-3beta-ol 40V, Positive-QTOF | splash10-0aou-9436000000-e89725576b476d216cf9 | 2021-09-22 | Wishart Lab | View Spectrum |
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