Alexa Fluor® 647 Rat Anti-Oct-2
Clone 9A2 (RUO)
- Brand BD Pharmingen™
- Alternative Name Oct2, OTF-2, OCT2, OTF2, Oct2, NF-A2, POU2F2, Pou2f2, Otf2
- Concentration 0.2 mg/ml
- Isotype Rat IgG2a, κ
- Reactivity Mouse (QC Testing) Human (Tested in Development)
Intracellular staining (flow cytometry) (Routinely Tested)
- Immunogen Mouse Oct-2 amino acids 1-44 Recombinant Protein
- Storage Buffer Aqueous buffered solution containing ≤0.09% sodium azide.
- Regulatory Status RUO
Regulatory Status Legend
The 9A2 monoclonal antibody specifically binds to Oct-2 that has a molecular weight of approximately 50-60 kDa. The 9A2 antibody was generated against the 44 N-terminal amino acids common to mouse Oct-2 isoforms and crossreacts with both human and mouse Oct-2. Oct-2 is a POU class 2 homeobox 2 transcription factors (POU2F2) that is also known as OCT2, OTF2, Lymphoid-restricted immunoglobulin octamer-binding protein NF-A2 and Octamer-binding transcription factor 2. The POU domain in the Oct-2 protein is required for low and high affinity cooperative binding of the octomer sequence and heptamer site in immunoglobulin promoters and promoters for other genes. Oct-2 is expressed in B cells, activated CD4+ and CD8+ T cells, monocytes/macrophages and subsets of dendritic cells. Oct-2 is reportedly associated with neoplasms including Diffuse Large B-cell lymphoma and Nodular Lymphocyte predominant Hodgkin's lymphoma. Studies with knockout mouse models suggest Oct-2 is required for B cell maturation, but not for B cell commitment, and for B cell production of IL-6.
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.
- 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.
- Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.
- 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).
- 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.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.