1.0 2011-09-21 00:37:13 UTC 2015-07-21 06:57:57 UTC FDB023946 Lumisterol 3 Lumisterol 3 is a normal human secosterooid metabolite from the class of vitamin D3 photoisomer derivatives. It is synthesized from 7-Dehydrocholesterol in the epidermis in response to ultraviolet irradiation. When human skin is exposed to ultraviolet radiation, epidermal 7-dehydrocholesterol is converted to previtamin D, and during prolonged exposure, the synthesis of previtamin D3 reaches a plateau at about 10 to 15 percent of the original 7-dehydrocholesterol content, and previtamin D3 is photoisomerized to two biologically inert isomers and lumisterol 3 is one of them (the other one being lumisterol 3). Therefore, lumisterol 3 is a metabolite to chronic exposure to sunlight. Lumisterol 3, as well as other photoisomers of vitamin D3 and previtamin D3 has been demonstrated to have inhibited keratinocyte proliferation. Thus, sunlight provides vitamin D3 photoproducts that may act directly to regulate epidermal proliferation and differentiation under physiologic conditions. (PMID 6256855, 10876100) [HMDB] (3b,9b,10a)-Cholesta-5,7-dien-3-ol 9b,10a-Cholesta-5,7-dien-3b-ol 9beta,10alpha-Cholesta-5,7-dien-3beta-ol C27H44O 384.6377 384.33921603 (1R,2S,5S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-7,9-dien-5-ol lumisterol 3 5226-01-7 [H][C@@]1(CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@@]4(C)[C@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C InChI=1S/C27H44O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9-10,18-19,21,23-25,28H,6-8,11-17H2,1-5H3/t19-,21+,23-,24+,25-,26-,27-/m1/s1 UCTLRSWJYQTBFZ-XMVWLVNMSA-N belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives are compounds containing a 3-hydroxylated cholestane core. Cholesterols and derivatives Organic compounds Lipids and lipid-like molecules Steroids and steroid derivatives Cholestane steroids Aliphatic homopolycyclic compounds 3-beta-hydroxy delta-5-steroids 3-beta-hydroxysteroids 3-hydroxy delta-7-steroids Cyclic alcohols and derivatives Delta-5-steroids Delta-7-steroids Hydrocarbon derivatives Secondary alcohols 3-beta-hydroxy-delta-5-steroid 3-beta-hydroxysteroid 3-hydroxy-delta-5-steroid 3-hydroxy-delta-7-steroid 3-hydroxysteroid Alcohol Aliphatic homopolycyclic compound Cholesterol Cholesterol-skeleton Cyclic alcohol Delta-5-steroid Delta-7-steroid Hydrocarbon derivative Hydroxysteroid Organic oxygen compound Organooxygen compound Secondary alcohol Cholesterol and derivatives Solid logp 7.30 ALOGPS logs -6.41 ALOGPS solubility 1.48e-04 g/l ALOGPS logp 6.71 ChemAxon pka_strongest_acidic 18.27 ChemAxon pka_strongest_basic -1.4 ChemAxon iupac (1R,2S,5S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-7,9-dien-5-ol ChemAxon average_mass 384.6377 ChemAxon mono_mass 384.33921603 ChemAxon smiles [H][C@@]1(CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@@]4(C)[C@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C ChemAxon formula C27H44O ChemAxon inchi InChI=1S/C27H44O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9-10,18-19,21,23-25,28H,6-8,11-17H2,1-5H3/t19-,21+,23-,24+,25-,26-,27-/m1/s1 ChemAxon inchikey UCTLRSWJYQTBFZ-XMVWLVNMSA-N ChemAxon polar_surface_area 20.23 ChemAxon refractivity 121.47 ChemAxon polarizability 49.93 ChemAxon rotatable_bond_count 5 ChemAxon acceptor_count 1 ChemAxon donor_count 1 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 25645 Specdb::CMs 39030 Specdb::CMs 154147 Specdb::MsMs 322813 Specdb::MsMs 322814 Specdb::MsMs 322815 Specdb::MsMs 370819 Specdb::MsMs 370820 Specdb::MsMs 370821 Specdb::MsMs 2832738 Specdb::MsMs 2832739 Specdb::MsMs 2832740 Specdb::MsMs 2848973 Specdb::MsMs 2848974 Specdb::MsMs 2848975 HMDB06505 #<Reference:0x00007f08d9cdd280> #<Reference:0x00007f08d9cdd078> Anatidae Type 1 specific Anatidae 8830 Beefalo Type 1 specific Bos taurus X Bison bison 297284 Bison Type 1 specific Bison bison 9901 Buffalo Type 1 specific Bubalus bubalis 89462 Cattle (Beef, Veal) Type 1 specific Bos taurus 9913 Chicken Type 1 specific Gallus gallus 9031 Columbidae (Dove, Pigeon) Type 1 specific Columbidae 8930 Deer Type 1 specific Cervidae 9850 Domestic goat Type 1 specific Capra aegagrus hircus 9925 Domestic pig Type 1 specific Sus scrofa domestica 9825 Elk Type 1 specific Cervus canadensis 1574408 Emu Type 1 specific Dromaius novaehollandiae 8790 European rabbit Type 1 specific Oryctolagus 9984 Greylag goose Type 1 specific Anser anser 8843 Guinea hen Type 1 specific Numida meleagris 8996 Horse Type 1 specific Equus caballus 9796 Mallard duck Type 1 specific Anas platyrhynchos 8839 Mountain hare Type 1 specific Lepus timidus 62621 Mule deer Type 1 specific Odocoileus 9871 Ostrich Type 1 specific Struthio camelus 8801 Pheasant Type 1 specific Phasianus colchicus 9054 Quail Type 1 specific Phasianidae 9005 Rabbit Type 1 specific Leporidae 9979 Rock ptarmigan Type 1 specific Lagopus muta 64668 Sheep (Mutton, Lamb) Type 1 specific Ovis aries 9940 Squab Type 1 specific Columba 8931 Turkey Type 1 specific Meleagris gallopavo 9103 Velvet duck Type 1 specific Melanitta fusca 371864 Wild boar Type 1 specific Sus scrofa 9823