Poor inhibitor of platelet aggregation. When it dimerizes with EO4A, it inhibits the adhesion of cells expressing the RGD-dependent integrin alpha-5/beta-1 (ITGA5/ITGB1) to immobilized fibronectin. When it dimerizes with EO5A, it inhibits the adhesion of the alpha-4/beta-1 (ITGA4/ITGB1) integrin to VCAM-1. When it dimerizes either with EO4A or EO5A, the inhibition on alpha-IIb/beta-3 (ITGA2B/ITGB3) is low. Heterodimer with EO4A or EO5A; disulfide-linked. Expressed by the venom gland. When it dimerizes either with EO4A or EO5A, there is no inhibition on alpha-1/beta-1 (ITGA1/ITGB1), alpha-2/beta-1 (ITGA2/ITGB1) and alpha-6/beta-1 (ITGA6/ITGB1). Belongs to the disintegrin family. Dimeric disintegrin subfamily.