Alexa Fluor® 647 Mouse Anti-Human Fcµ Receptor
Clone HM14-1 (also known as HM14) (RUO)
- Brand BD Pharmingen™
- Alternative Name FcμR; FcmR; Fc mu receptor; IgM Fc receptor; FAIM3; TOSO
- Vol. Per Test 5 µl
- Isotype Mouse BALB/c IgG1, κ
- Reactivity Human (QC Testing)
Flow cytometry (Routinely Tested)
- Immunogen Human IgM Fc Receptor Transfected Cell Line
- Storage Buffer Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
- Regulatory Status RUO
Regulatory Status Legend
The HM14-1 monoclonal antibody specifically binds to the FAIM3-encoded high affinity receptor for IgM (also known as, Fcµ Receptor, FcμR, Fc mu receptor, Immunoglobulin mu Fc receptor, FcmR, IgM Fc receptor). The FcμR is a type 1 transmembrane glycoprotein that contains an extracellular Ig-like domain with sequence similarities to Fcα/μR and pIgR. It is likewise known as Fas apoptotic inhibitory molecule 3, TOSO or Regulator of Fas-induced apoptosis Toso based on its capacity to counter apoptosis mediated by Fas/CD95 (or TNF) in some experimental model systems. FcμRs are expressed by B cells, CD4+ T cells, CD8+ T cells, and NK cells and are highly expressed on Chronic Lymphocytic Leukemia cells. FcμRs may play roles in cellular activation, antigen presentation and IgM-dependent cell-mediated cytotoxicity. The relatively long cytoplasmic tail of FcμR contains several conserved tyrosine and serine residues. These get phosphorylated after FcμR ligation with IgM immune complexes and may initiate signaling responses. Lymphocyte FcμRs can mediate the internalization of IgM-bound antigens including microbial and viral antigens. This in turn may cause cellular activation due to subsequent antigen processing and exposure of activating ligands to intracellular receptors including Toll-like receptors. The HM7-10 antibody, a related FcμR-specific antibody, reportedly recognizes an epitope near the IgM ligand binding site of the FcμR whereas the HM14-1 antibody does not.
Alexa Fluor® 647 conjugates are highly photostable and remain fluorescent over a broad pH range. The excitation and emission maxima are nearly identical to those of APC. However, APC tends to be brighter while Alexa Fluor® 647 is more optimal for intracellular applications. This fluorochrome exhibits uncommon photostability, making it an ideal choice for use in fluorescence microscopy. Due to nearly identical excitation and emission properties but different spillover characteristics, APC and Alexa Fluor® 647 cannot be used simultaneously.
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Preparation and Storage
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
The antibody was conjugated to Alexa Fluor® 647 under optimum conditions, and unreacted Alexa Fluor® 647 was removed.
- This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
- An isotype control should be used at the same concentration as the antibody of interest.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
- Source of all serum proteins is from USDA inspected abattoirs located in the United States.
- The Alexa Fluor®, Pacific Blue™, and Cascade Blue® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc. for research use only, excluding use in combination with microarrays, or as analyte specific reagents. The Alexa Fluor® dyes (except for Alexa Fluor® 430), Pacific Blue™ dye, and Cascade Blue® dye are covered by pending and issued patents.
- Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
- Alexa Fluor® 647 fluorochrome emission is collected at the same instrument settings as for allophycocyanin (APC).
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.