The EMab-134 monoclonal antibody specifically recognizes the epidermal growth factor receptor (EGF-R). The EGF-R is a transmembrane glycoprotein of approximately 170 kDa that is expressed on most cells. It consists of a glycosylated extracellular domain which binds to epidermal growth factor (EGF), a transmembrane domain, and an intracellular domain with tyrosine-kinase activity essential for signal transduction. The epitope recognized by EMab-134 is an extracellular peptide that is not affected by glycosylation. The EGF-R plays an important role in the growth and differentiation of many cellular types. Transforming growth factor α (TGFα), vaccinia virus growth factor, and related growth factors can also bind to and signal through the EGF-R.
This antibody is conjugated to BD Horizon™ BV605 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max of 602-nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20-nm filter set. BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605-nm. Due to the excitation of the acceptor dye by the green (532 nm) and yellow-green (561 nm) lasers, there will be significant spillover into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers. BD Horizon BV605 conjugates are very bright, often exhibiting brightness equivalent to PE conjugates and can be used as a third color off of the violet laser.