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Synthesis and application of a photoaffinity analog of dehydroepiandrosterone (DHEA)
Journal article   Peer reviewed

Synthesis and application of a photoaffinity analog of dehydroepiandrosterone (DHEA)

Horacio F Olivo, Nury Perez-Hernandez, Dongmin Liu, Mary Iruthayanathan, Brianne O’Leary, Laurie L Homan and Joseph S Dillon
Bioorganic & medicinal chemistry letters, Vol.20(3), pp.1153-1155
2010
DOI: 10.1016/j.bmcl.2009.12.019
PMCID: PMC2818606
PMID: 20031404

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Abstract

A novel analog of DHEA, carrying both benzophenone and biotin groups, retains the biological activity of DHEA and can be used for analysis and isolation of cellular DHEA binding sites. We have synthesized an analog of dehydroepiandrosterone (DHEA, 1) containing both a benzophenone (BP) and a biotin (Bt) group (DHEA–BP–Bt, 8). Compound 8 was prepared by functionalization on C-17 of 1. Biocytin was reacted with 4-benzoylbenzoic acid and the product was condensed with 1 containing a diamine–hexane linker. We detected specific protein bands of approximately 55, 80, and 150 kDa by SDS–PAGE analysis of vascular endothelial cell plasma membranes which had been photoirradiated in the presence of 8.
DHEA Chemical probe Biotin Photoaffinity Benzophenone

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