Record Information |
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Version | 1.0 |
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Creation Date | 2016-07-13 19:47:28 UTC |
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Update Date | 2016-07-20 20:59:54 UTC |
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Lmdb | LMDB00330 |
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Secondary Accession Numbers | None |
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Metabolite Identification |
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Common Name | 24-Hydroxycholesterol |
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Description | 24-Hydroxycholesterol (24OHC) is almost exclusively formed in the brain. The enzymatic conversion of CNS cholesterol to 24OHC, which readily crosses the blood-brain barrier, is the major pathway for brain cholesterol elimination and brain cholesterol homeostasis maintenance. The enzyme mediating this conversion has been characterized at the molecular level as cholesterol 24-hydroxylase (EC 1.14.13.98, CYP46) and is mainly located in neurons. Like other oxysterols, 24OHC is efficiently converted into normal bile acids or excreted in bile in its sulfated and glucuronidated form. Levels of 24OHC in the circulation decrease with age in infants and children. In adults, however, the levels appear to be stable. There is accumulating evidence pointing toward a potentially important link between cholesterol, beta-amyloid, and Alzheimer's disease. Patients with active demyelinating diseases had increased levels of 24OHC in cerebrospinal fluid (CSF). Patients with Alzheimer's disease have slightly increased levels of 24OHC in CSF. Patients with multiple sclerosis have a tendency to have higher levels of 24OHC during active periods. (PMID: 15061359 , 14574622 ). |
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Structure | |
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Synonyms | Value | Source |
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(24S)-Hydroxycholesterol | ChEBI | 24S-Hydroxy-cholesterol | ChEBI | Cerebrosterol | ChEBI | Cholest-5-en-3beta,24S-diol | ChEBI | Cholest-5-ene-3,24-diol | ChEBI | (24S)-24-Hydroxycholesterol | Kegg | (24S)-Cholest-5-ene-3beta,24-diol | Kegg | Cholest-5-en-3b,24S-diol | Generator | Cholest-5-en-3β,24S-diol | Generator | (24S)-Cholest-5-ene-3b,24-diol | Generator | (24S)-Cholest-5-ene-3β,24-diol | Generator | 24(S)-Hydroxycholesterol | HMDB | 24S-Cholest-5-ene-3b,24-diol | HMDB | 24S-Hydroxycholesterol | HMDB | Cerebrosterin | HMDB | Cholest-5-ene-3b,24b-diol | HMDB |
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Chemical Formula | C27H46O2 |
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Average Molecular Weight | 402.6529 |
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Monoisotopic Molecular Weight | 402.349780716 |
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IUPAC Name | (1S,2R,5S,10S,11S,14R,15R)-14-[(2R,5S)-5-hydroxy-6-methylheptan-2-yl]-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-ol |
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Traditional Name | 24(S)-hydroxycholesterol |
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CAS Registry Number | 474-73-7 |
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SMILES | [H][C@@]1(CC[C@@]2([H])[C@]3([H])CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CC[C@H](O)C(C)C |
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InChI Identifier | InChI=1S/C27H46O2/c1-17(2)25(29)11-6-18(3)22-9-10-23-21-8-7-19-16-20(28)12-14-26(19,4)24(21)13-15-27(22,23)5/h7,17-18,20-25,28-29H,6,8-16H2,1-5H3/t18-,20+,21+,22-,23+,24+,25+,26+,27-/m1/s1 |
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InChI Key | IOWMKBFJCNLRTC-XWXSNNQWSA-N |
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Chemical Taxonomy |
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Description | belongs to the class of organic compounds known as dihydroxy bile acids, alcohols and derivatives. Dihydroxy bile acids, alcohols and derivatives are compounds containing or derived from a bile acid or alcohol, and which bears exactly two carboxylic acid groups. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Steroids and steroid derivatives |
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Sub Class | Bile acids, alcohols and derivatives |
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Direct Parent | Dihydroxy bile acids, alcohols and derivatives |
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Alternative Parents | |
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Substituents | - 24-hydroxysteroid
- Dihydroxy bile acid, alcohol, or derivatives
- 3-beta-hydroxysteroid
- 3-beta-hydroxy-delta-5-steroid
- Hydroxysteroid
- 3-hydroxysteroid
- 3-hydroxy-delta-5-steroid
- Delta-5-steroid
- Cyclic alcohol
- Secondary alcohol
- Organic oxygen compound
- Hydrocarbon derivative
- Organooxygen compound
- Alcohol
- Aliphatic homopolycyclic compound
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Molecular Framework | Aliphatic homopolycyclic compounds |
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External Descriptors | |
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Ontology |
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Status | Detected but not Quantified |
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Origin | Not Available |
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Biofunction | Not Available |
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Application | Not Available |
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Cellular locations | Not Available |
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Physical Properties |
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State | Not Available |
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Experimental 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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Predicted Properties | |
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Spectra |
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Spectra | Spectrum Type | Description | Splash Key | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive | splash10-0076-1009000000-ab69a48110c4082d2ca7 | Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positive | splash10-001i-2111290000-94668570804377216a37 | Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive | Not Available | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-0f79-0009200000-0f92e092c978feb7ef4a | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-00kr-4119100000-6a8569b9873ebded521a | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-0c01-5049000000-3466fdb5c0a23399bea3 | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-0udi-0003900000-db2e1b276e6052150b6f | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-0ue9-0009700000-55fe1a48489ad8aa8bb6 | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-00ri-7009000000-7a2a5d9fa1c30ba0c55b | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-00ku-0209100000-bfd7a93b49439544b96f | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-090u-5459000000-c9b30378df2d7c3e159c | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-0a4l-6940000000-78cdb9ace90e3772c7c2 | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-0udi-0000900000-079f76b4d985e4b92c9d | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-0udi-0003900000-390ce6ee953a3d06105b | Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-0002-0009000000-b4881863f9f5f7cd2223 | Spectrum |
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General References | - Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [15061359 ]
- Lutjohann D, von Bergmann K: 24S-hydroxycholesterol: a marker of brain cholesterol metabolism. Pharmacopsychiatry. 2003 Sep;36 Suppl 2:S102-6. [14574622 ]
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