The HY101 monoclonal antibody specifically binds to a collagen receptor, Platelet Glycoprotein VI (GPVI or GP6). GPVI is a 58-kD platelet membrane glycoprotein that belongs to the immunoglobulin superfamily. Upon blood vessel wall injury and consequent endothelial cell damage, platelets collect upon the exposed collagen fibers present in the subendothelial matrix. The platelet and collagen interaction leads to activated platelet aggregation and thrombus formation. Although normally serving a protective function in clot formation that limits blood loss, the platelet GPVI/collagen interaction may also play a role in myocardial infarction and stroke which are associated with the rupture of atherosclerotic plaques.
The antibody was conjugated to BD Horizon BUV615 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome with an Ex Max near 350 nm and an Em Max near 615 nm. BD Horizon Brilliant BUV615 can be excited by the ultraviolet laser (355 nm) and detected with a 610/20 filter and a 595 nm LP. Due to the excitation of the acceptor dye by the blue/yellow-green laser line, there may be significant spillover into channels detecting PE-CF594 like emissions (eg, 610/20-nm filter).