Mq. Zhang et al., THE ROLE OF ARGININE IN THE BINDING OF LTD4 ANTAGONISTS TO CYSLT(1) RECEPTORS OF GUINEA-PIG LUNG, Bioorganic & medicinal chemistry letters, 7(10), 1997, pp. 1331-1336
Using the chemical masking agent phenylglyoxal, we have selectively bl
ocked the arginine residues in leukotriene cysLT(1) receptors of guine
a pig lung preparations. This treatment resulted in the markedly decre
ased affinity of LTD4 antagonists to the receptor without affecting th
e affinity of LTD4 itself. Our results indicate that LTD4 and its anta
gonists may have different modes of interaction with the cysLT(1) rece
ptor. (C) 1997 Elsevier Science Ltd.