. "Reviewed: D'Eustachio, P, 2009-05-29 07:44:22"^^ . "Edited: Jassal, B, 2009-03-26 15:30:13"^^ . "Authored: Jassal, B, 2009-03-26 15:30:13"^^ . "The cysteinyl-leukotrienes (cys-LTs) are potent smooth muscle contractile agents mediating bronchoconstriction. Examples are LTC4, LTD4 and LTE4. There are two human cys-LT receptors, 1 (Lynch KR et al, 1999) and 2 (Heise CE et al, 2000). They mediate their effects via coupling to the G protein alpha q/11 subunit (Sarau HM et al, 1999)."^^ . . . . . . . . "CysLT receptors can bind cysteinyl leukotrienes"^^ . . . .