Alexa Fluor® 647 Mouse Anti-A2B5
Clone 105/A2B5 (also known as antibody A2B5, F12A2B5; 105) (RUO)
- Brand BD Pharmingen™
- Vol. Per Test 5 µl
- Isotype Mouse BALB/c IgM
- Reactivity Mouse (QC Testing) Human (Tested in Development) Rat, Chicken (Reported)
Flow cytometry (Routinely Tested)
Bioimaging, Immunofluorescence (Not Recommended)
- Immunogen Chicken embryo retina Cells
- Storage Buffer Aqueous buffered solution containing BSA, protein stabilizer, and ≤0.09% sodium azide.
- Regulatory Status RUO
Regulatory Status Legend
The 105/A2B5 monoclonal antibody binds to gangliosides in neural tissue in the retina, brain, spinal cord, and dorsal root ganglia. The antigenic gangliosides are found on the plasma membrane of neural cell bodies, but not axons or dendrites. Expression levels of the gangliosides that mAb 105/A2B5 binds to, including GT3 and its O-acetylated derivative, decrease during embryonic development of the brain. Thus, mAb 105/A2B5 may be used to monitor the maturation of brain tissue. A2B5 antigens have also been associated with numerous tumors, including glioblastoma multiforme tumor cells, pancreatic islet tumor cells, and rat insulinoma cells, and are thought to contribute to chemoresistance and increased tumor proliferation and recurrence.
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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.
- Alexa Fluor® 647 fluorochrome emission is collected at the same instrument settings as for allophycocyanin (APC).
- 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.
- Accutase is a registered trademark of Innovative Cell Technologies, Inc.
- 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.