3D-FL182088 - lumisterol

Lumisterol 3 (>90%)

Lumisterol 3 (9β,10α-Cholesta-5,7-dien-3β-ol) is a sterol metabolite and a photosensitised isomer derivative of vitamin D3.

Lumisterol 3 is a provitamin compound that is produced by the human body through the conversion of vitamin D into lumisterol. It is used as a dietary supplement and can be found in the human serum, cellular, and skin cells. Lumisterol 3 has been shown to increase cholesterol synthesis, which may be due to its ability to activate enzymes involved in this process. Lumisterol 3 has also been shown to have physiological effects on humans. These effects include an increase in energy expenditure and a decrease in blood pressure and heart rate. The molecular modeling of lumisterol 3 shows that it has a similar structure to vitamin D, but with three instead of two side chains.

(3S,9R,10S,13R,14R,17R)-17-((2R,5R,E)-5,6-Dimethylhept-3-en-2-yl)-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Human VD. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human VD. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human VD in the samples is then determined by comparing the OD of the samples to the standard curve.

This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with VD. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to VD. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of VD in the samples is then determined by comparing the OD of the samples to the standard curve.

Octaethylene glycol monododecyl ether (C12E8) is a non-ionic surfactant and detergent, for assisting LOX activity assays and membrane protein extraction.

Tachysterol is a sterol derivative that serves as a vitamin D analog, primarily sourced from the photochemical isomerization of ergosterol or lumisterol. Tachysterol undergoes further conversion processes to become active vitamin D metabolites that play crucial roles in calcium and phosphorus homeostasis. Though not biologically active in its original form, tachysterol is a precursor in the metabolic pathway, with conversion into active forms such as calcitriol occurring in the body.