Synthesis and biological characterization of SQBAzide, a novel biotinylated photoaffinity probe for the study of the human platelet thromboxane A(2) receptor
T. Halmos et al., Synthesis and biological characterization of SQBAzide, a novel biotinylated photoaffinity probe for the study of the human platelet thromboxane A(2) receptor, BIOORG MED, 9(20), 1999, pp. 2963-2968
SQBAzide, a biotinylated, azido derivative of the TXA(2) receptor antagonis
t, SQ31,491, was synthesized and characterized. The compound specifically i
nhibited human platelet aggregation mediated by TXA(2) receptor activation
and irreversibly labeled platelet TXA(2) receptors upon exposure to ultravi
olet light. This probe should prove to be of significant value for the stud
y of the receptor-ligand binding domain. (C) 1999 Elsevier Science Ltd. All
rights reserved.