Snaclec that induces platelet aggregation in either human platelet rich plasma (PRP) or washed platelet suspensions. It causes aggregation in a dose-dependent manner even in the absence of various platelet agonists such as ADP or von Willebrand factor (vWF). Interestingly, it does not induce aggregation in rabbit PRP. A monoclonal antibody against the platelet GPIb receptor blocks the aggregation induced by trimecetin, suggesting that it acts by binding to GPIb (GP1BA/GP1BB). Heterodimer of subunits alpha and beta; disulfide-linked. Expressed by the venom gland. Does not show affinity to coagulation factors IX and X in the presence of calcium ion. Also shows no inhibition on thrombin (PubMed:8968958). Belongs to the snaclec family.