Methods for Detecting 1,25-dihydroxyvitamin D and Related Antibodies

There is disclosed an assay method for selectively detecting 1,25-dihydroxy-vitamin D in a biological fluid sample. According to the method, the pH of the test sample is adjusted to 6-9 and a receptor protein comprising the Ligand Binding Domain of Vitamin D Receptor (VDR-LBD) is added to the test s...

Full description

Saved in:
Bibliographic Details
Main Authors Olson, Gregory, Deluca, Hector Floyd, Bonelli, Fabrizio, New, Michael, Soldo, Joshua, Wall, John, Lutterman, Michael
Format Patent
LanguageEnglish
Published 27.02.2020
Subjects
CHEMISTRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
METALLURGY
ORGANIC CHEMISTRY
PEPTIDES
PHYSICS
TESTING
Online AccessGet full text

Cover

More Information
Summary:There is disclosed an assay method for selectively detecting 1,25-dihydroxy-vitamin D in a biological fluid sample. According to the method, the pH of the test sample is adjusted to 6-9 and a receptor protein comprising the Ligand Binding Domain of Vitamin D Receptor (VDR-LBD) is added to the test sample, thereby obtaining the formation of a VDR-LBD/1,25-dihydroxyvitamin D complex in which the VDR-LBD portion is conformationally changed with respect to unbound VDR-LBD. The VDR-LBD/1,25-dihydroxyvitamin D complex is then detected by means of a capture moiety which is capable of specifically binding to VDR-LBD bound to 1,25-dihydroxyvitamin D. Also disclosed are an assay kit and an antibody for carrying out the method. The assay is preferably a sandwich immunoassay.
Bibliography:Application Number: US201916681241