Photoaffinity labeling of chick intestinal 1α,25-dihydroxyvitamin D3 receptor
摘要:
The photoaffinity labeling of chick intestinal 1alpha,25-dihydroxyvitamin D3 receptor with 1alpha,25-dihydroxyvitamin D3-3beta-{N-(4-azido-2-nitro-[3,5-H-3]phenyl)}glycinate has been determined under a variety of conditions.
Synthesis of a photoaffinity-labelled analogue of 1,25-dihydroxyvitamin D3
作者:Rahul Ray、Sally Ann Holick、Michael F. Holick
DOI:10.1039/c39850000702
日期:——
The synthesis of a biologically active analogue of 1,25-dihydroxyvitaminD3 containing a photolabile azidonitrophenyl group is described.
描述了含有光不稳定的叠氮基硝基苯基的1,25-二羟基维生素D 3的生物活性类似物的合成。
Synthesis and Binding-analysis of 5E-[19-(2-bromoacetoxy)methyl]25-hydroxyvitamin D3 and 5E-25-hydroxyvitamin D3-19-methyl[(4-azido-2-nitro)phenyl]glycinate: Novel C19-modified Affinity and Photoaffinity Analogs of 25-hydroxyvitamin D3
作者:James K Addo、Rahul Ray
DOI:10.1016/s0039-128x(98)00009-9
日期:1998.4
Synthesis of novel C-19-modified affinity and photoaffinity analogs of vitamin D-3 and 25-hydroxyvitamin D-3(25-OH-D-3) is described A key step in the synthesis is a Horner-Emmons reaction between C-19-nor-cyclovitamin D-3-C-19-ketone or C-19-nor-25-hydroxy-cyclovitamin D-3-C-19-ketone and diethyl cyanomethylphosphonate. Competitive radioligand binding assays with human serum vitamin D-binding protein (DBP) and 5E-[19-(2-bromoacetoxy)methyl]25-hydroxyvitamin D-3 and 5E-25-hydroxyvitamin in D-3-19-methyl[4-azido-2-nitro)phenyl]glycinate, 25-OH-D-3-analogs containing affinity and photoaffinity probes at C-19-position, demonstrated that these compounds displaced radiolabeled 25-OH-D-3 from the binding pocket of DBP in it dose-dependent manner. Thus, these affinity and photoaffinity analogs are potentially useful in determining the ligand binding site topographies of DBP and possibly the vitamin D receptor. (C) 1998 by Elsevier Science Inc.
Photoaffinity labeling of chick intestinal 1α,25-dihydroxyvitamin D3 receptor
作者:Rahul Ray、Swapna Ray、Stanley Rose、Michael F. Holick
DOI:10.1016/0039-128x(93)90003-6
日期:1993.10
The photoaffinity labeling of chick intestinal 1alpha,25-dihydroxyvitamin D3 receptor with 1alpha,25-dihydroxyvitamin D3-3beta-N-(4-azido-2-nitro-[3,5-H-3]phenyl)}glycinate has been determined under a variety of conditions.