CD172a/b Mouse anti-Human, Brilliant Violet 605, Clone: SE5A5, BD Optibuild™

Description

• The SE5A5 monoclonal antibody specifically binds to a common epitope on CD172a/ SIRPα (90 kDa) and CD172b/ SIRPβ 1 (50 kDa)
• These transmembrane glycoproteins are members of the Signal Regulatory Protein (SIRP) family that, in turn, belongs to the Immunoglobulin superfamily
• The SIRP family is comprised of two subgroups, SIRPα and SIRPβ that are distinguished by the presence (α) or absence (β) of a cytoplasmic domain containing two immunoreceptor tyrosine-based inhibition motifs (ITIM)
• CD172a/ SIRPα is expressed on CD34+ stem/progenitor cells, cardiomyocytes, monocytes, macrophages, granulocytes, dendritic cells, and in the central nervous system
• It binds to CD47 and is implicated in mediating inhibitory signals via the ITIM/SHP-2 association
• CD172b/ SIRPβ 1 does not possess a cytoplasmic domain but instead the transmembrane domain contains a positively-charged residue that can interact with another transmembrane protein, DAP-12/KARAP
• DAP-12 has two immunoreceptor tyrosine-based activat ion motifs (ITAM) within its cytoplasmic domain that are thought to link CD172b to cellular activation signaling
• CD172b is expressed on myeloid cells, including peripheral blood monocytes and granulocytes
• It is not expressed on CD34+ cells
• CD172a and CD172b have complementary role s in signal regulation and may work together in tuning certain cellular responses to stimuli
• 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 407nm and Em Max of 602nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20nm filter set
• BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605nm
• 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
• BV605 is a tandem fluorochrome that combines BD Horizon BV421 and Cy™3.5
• These conjugates are very bright, exhibiting similar brightness to equivalent PE conjugates
• Due to the excitation of Cy3.5 by the green (532nm) and yellow-green (561nm) lasers, there will be significant spillover of the BD Horizon BV605 signal into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers.