Alexa Fluor® 647 Mouse anti-Elk-1 (pS383)
Clone M21-1721 (RUO)
- Brand BD Phosflow™
- Alternative Name ELK1
- Vol. Per Test 20 µl
- Isotype Mouse BALB/c IgG1, κ
- Reactivity Human (QC Testing) Mouse, Rat (Predicted)
Intracellular staining (flow cytometry) (Routinely Tested)
- Immunogen Phosphorylated Human Elk-1 Peptide
- Storage Buffer Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
- Regulatory Status RUO
Regulatory Status Legend
Elk-1 is a 62-kDa member of the Ets oncogene family of transcription factors and a member of the subfamily of ternary complex factors (TCF). Ets proteins mediate a variety of gene activities in response to serum and growth factors. Proteins in the TCF subfamily form a ternary complex by binding to the Serum Response Element (SRE) in conjunction with a dimer of Serum Response Factors (SRF). Elk-1 is phosphorylated by mitogen-activated protein (MAP) kinase pathways in vivo at a cluster of S/T motifs at its carboxy-terminus. Phosphorylation at these sites, particularly at serine 383 (S383), is critical for Elk-1 transcriptional activation. Studies have shown that Elk-1 is a direct target of activated MAP kinase, and that it is also a target of the stress-activated kinase SAPK/JNK.
The M21-1721 monoclonal antibody recognizes the phosphorylated S383 of activated Elk-1. The orthologous phosphorylation sites of mouse and rat Elk-1 are S384 and S382, respectively.
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).
- 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.
- 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.
- Ficoll-Paque is a trademark of Amersham Biosciences Limited.
- 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.
- All other brands are trademarks of their respective owners.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
This antibody conjugate is suitable for intracellular staining of human peripheral blood mononuclear cells using BD Cytofix™ Fixation Buffer. Any of the three BD Phosflow™ permeabilization buffers may be used.