Record Information |
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Version | 5.0 |
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Status | Detected but not Quantified |
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Creation Date | 2007-05-22 18:20:36 UTC |
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Update Date | 2022-03-07 02:49:30 UTC |
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HMDB ID | HMDB0006225 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Ercalcitriol |
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Description | Ercalcitriol is the active circulating metabolite of vitamin D2. Vitamin D2 is modified by 25-hydroxylase in the liver and 25-hydroxyvitamin D *-hydroxylase in the kidney to form the active metabolite, ercalcitriol, which is then metabolized by 25-hydroxyvitamin D-24-hydroxylase (24-OHase, CYP24A1, EC 1.14.13.13). The binding of ercalcitriol or their analogs to Vitamin D receptor (VDR), a nuclear receptor, activates VDR to interact with retinoid X receptor (RXR) and forms the VDR/RXR/cofactor complex, which binds to Vitamin D response elements in the promoter region of target genes to regulate gene transcription. The kidney is the major site of 25-hydroxyvitamin D*-hydroxylase (CYP27B1, EC 1.14.13.13), which is responsible for the activation of 25-hydroxyvitamin D. Of all the steroid hormones, ercalcitriol represents the most difficult challenge to the analytical biochemist with respect to quantization. Ercalcitriol circulates at pmol concentrations, is highly lipophilic and its precursor, 25-hydroxyvitamin D2, circulates at nmol levels. (PMID: 16242929 , 17867378 , 17197173 ). |
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Structure | C[C@H](\C=C\[C@H](C)C(O)(C)C)[C@@]1([H])CC[C@@]2([H])\C(CCC[C@]12C)=C\C=C1\C[C@@H](O)C[C@H](O)C1=C InChI=1S/C28H44O3/c1-18(9-10-19(2)27(4,5)31)24-13-14-25-21(8-7-15-28(24,25)6)11-12-22-16-23(29)17-26(30)20(22)3/h9-12,18-19,23-26,29-31H,3,7-8,13-17H2,1-2,4-6H3/b10-9+,21-11+,22-12-/t18-,19+,23-,24-,25+,26+,28-/m1/s1 |
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Synonyms | Value | Source |
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1,25-Dihydroxycalciferol | ChEBI | 1,25-Dihydroxyergocalciferol | ChEBI | 1,25-Dihydroxyvitamin D2 | ChEBI | 1alpha,25-Dihydroxycalciferol | ChEBI | 1alpha,25-Dihydroxyergocalciferol | ChEBI | 1a,25-Dihydroxycalciferol | Generator | 1Α,25-dihydroxycalciferol | Generator | 1a,25-Dihydroxyergocalciferol | Generator | 1Α,25-dihydroxyergocalciferol | Generator | 1a,25-Dihydroxyvitamin D2 / 1a,,25-dihydroxyergocalciferol | HMDB | 1Α,25-dihydroxyvitamin D2 / 1α,,25-dihydroxyergocalciferol | HMDB | 1 alpha,25-Dihydroxyvitamin D2 | HMDB | 1,25-Dihydroxyergocalciferol, (1alpha,3beta,5Z,7E,22E)-isomer | HMDB | 1,25-(OH)2D2 | HMDB | Ercalcitriol | ChEBI | 1a,25-Dihydroxyvitamin D2 | Generator | 1Α,25-dihydroxyvitamin D2 | Generator |
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Chemical Formula | C28H44O3 |
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Average Molecular Weight | 428.6472 |
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Monoisotopic Molecular Weight | 428.329045274 |
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IUPAC Name | (1R,3S,5Z)-5-{2-[(1R,3aS,4E,7aR)-1-[(2R,3E,5S)-6-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-octahydro-1H-inden-4-ylidene]ethylidene}-4-methylidenecyclohexane-1,3-diol |
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Traditional Name | (1R,3S,5Z)-5-{2-[(1R,3aS,4E,7aR)-1-[(2R,3E,5S)-6-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-hexahydro-1H-inden-4-ylidene]ethylidene}-4-methylidenecyclohexane-1,3-diol |
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CAS Registry Number | 60133-18-8 |
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SMILES | C[C@H](\C=C\[C@H](C)C(O)(C)C)[C@@]1([H])CC[C@@]2([H])\C(CCC[C@]12C)=C\C=C1\C[C@@H](O)C[C@H](O)C1=C |
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InChI Identifier | InChI=1S/C28H44O3/c1-18(9-10-19(2)27(4,5)31)24-13-14-25-21(8-7-15-28(24,25)6)11-12-22-16-23(29)17-26(30)20(22)3/h9-12,18-19,23-26,29-31H,3,7-8,13-17H2,1-2,4-6H3/b10-9+,21-11+,22-12-/t18-,19+,23-,24-,25+,26+,28-/m1/s1 |
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InChI Key | ZGLHBRQAEXKACO-XJRQOBMKSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as vitamin d and derivatives. Vitamin D and derivatives are compounds containing a secosteroid backbone, usually secoergostane or secocholestane. |
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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 | Vitamin D and derivatives |
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Direct Parent | Vitamin D and derivatives |
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Alternative Parents | |
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Substituents | - Triterpenoid
- Tertiary alcohol
- 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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Physiological effect | Not Available |
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Disposition | |
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Process | Not Available |
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Role | Not Available |
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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 IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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Ercalcitriol,1TMS,isomer #1 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C)C[C@@H](O)C[C@@H]1O | 3549.8 | Semi standard non polar | 33892256 | Ercalcitriol,1TMS,isomer #2 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O)C[C@@H](O[Si](C)(C)C)C[C@@H]1O | 3486.2 | Semi standard non polar | 33892256 | Ercalcitriol,1TMS,isomer #3 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O)C[C@@H](O)C[C@@H]1O[Si](C)(C)C | 3487.7 | Semi standard non polar | 33892256 | Ercalcitriol,2TMS,isomer #1 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C)C[C@@H](O[Si](C)(C)C)C[C@@H]1O | 3495.7 | Semi standard non polar | 33892256 | Ercalcitriol,2TMS,isomer #2 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C)C[C@@H](O)C[C@@H]1O[Si](C)(C)C | 3485.5 | Semi standard non polar | 33892256 | Ercalcitriol,2TMS,isomer #3 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O)C[C@@H](O[Si](C)(C)C)C[C@@H]1O[Si](C)(C)C | 3403.8 | Semi standard non polar | 33892256 | Ercalcitriol,3TMS,isomer #1 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C)C[C@@H](O[Si](C)(C)C)C[C@@H]1O[Si](C)(C)C | 3419.3 | Semi standard non polar | 33892256 | Ercalcitriol,1TBDMS,isomer #1 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C(C)(C)C)C[C@@H](O)C[C@@H]1O | 3780.4 | Semi standard non polar | 33892256 | Ercalcitriol,1TBDMS,isomer #2 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O)C[C@@H](O[Si](C)(C)C(C)(C)C)C[C@@H]1O | 3708.1 | Semi standard non polar | 33892256 | Ercalcitriol,1TBDMS,isomer #3 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O)C[C@@H](O)C[C@@H]1O[Si](C)(C)C(C)(C)C | 3689.0 | Semi standard non polar | 33892256 | Ercalcitriol,2TBDMS,isomer #1 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C(C)(C)C)C[C@@H](O[Si](C)(C)C(C)(C)C)C[C@@H]1O | 3956.4 | Semi standard non polar | 33892256 | Ercalcitriol,2TBDMS,isomer #2 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C(C)(C)C)C[C@@H](O)C[C@@H]1O[Si](C)(C)C(C)(C)C | 3918.1 | Semi standard non polar | 33892256 | Ercalcitriol,2TBDMS,isomer #3 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O)C[C@@H](O[Si](C)(C)C(C)(C)C)C[C@@H]1O[Si](C)(C)C(C)(C)C | 3820.8 | Semi standard non polar | 33892256 | Ercalcitriol,3TBDMS,isomer #1 | C=C1/C(=C\C=C2/CCC[C@@]3(C)[C@H]2CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(C)(C)O[Si](C)(C)C(C)(C)C)C[C@@H](O[Si](C)(C)C(C)(C)C)C[C@@H]1O[Si](C)(C)C(C)(C)C | 4077.4 | Semi standard non polar | 33892256 |
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