Alexa Fluor® 647 Rat Anti-Mouse T- and B-Cell Activation Antigen
Clone GL7 (RUO)
- Brand BD Pharmingen™
- Alternative Name GL7; GL-7; GL7 Antigen
- Concentration 0.2 mg/ml
- Isotype Rat LOU, also known as Louvain, LOU/C, LOU/M IgM, κ
- Reactivity Mouse (QC Testing)
Flow cytometry (Routinely Tested)
- Immunogen In vitro-activated T-cell-depleted CBA/Ca mouse splenocytes
- Storage Buffer Aqueous buffered solution containing protein stabilizer and ≤0.09% sodium azide.
- Regulatory Status RUO
Regulatory Status Legend
The GL7 antibody specifically recognizes the T- and B- Cell Activation Antigen which is also known as, the GL7 antigen. The GL7 antigen is a 35-kDa cell-surface protein that is expressed on T and B lymphocytes activated in vitro, on bone marrow Pre-B-II cells, germinal-center B cells, and the subpopulation of thymocytes that coexpress high CD3e levels. The GL7 antibody recognizes an epitope containing nonsulfated α2-6-sialyl-LacNAc. There is strain variability with respect to GL7 antigen distribution on thymocytes and Con A-activated spleen cells. GL7 antigen expression is found to be higher on BALB/c mouse leucocytes than on C57BL/6 mouse counterparts. The GL7 antibody reportedly may crossreact with epitopes on molecules expressed by certain rat and human leucocyte subsets.
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.
Suggested Companion Products
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.
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- 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.
- 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).
- 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.
- 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.