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Western blot analysis of Fli-1. Lysate from Jurkat cells was probed with anti-Fli-1 (clone G146-254) at concentrations of 2.0 (lane 1), 1.0 (lane 2), and 0.5 µg/ml (lane 3). Fli-1 is identified as a band of ~50 kDa.
BD Pharmingen™ Purified Mouse Anti-Human FLI-1
Regulatory Status Legend
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Preparation And Storage
Recommended Assay Procedures
Applications include western blot analysis (0.5-2 µg/ml). Additional applications not routinely tested at BD Biosciences Pharmingen include gel shift and immunoprecipitation. Clone G146-254 has been shown to recognize in vitro translated, recombinant bacterially expressed, and endogenous B cell Fli-1. In gel shift assays this antibody supershifts complexes of Fli-1 and DNA probe.
Product Notices
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- 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.
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Fli-1 is a 50 kDa ets-related transcription factor. Like other ets-related proteins it binds to consensus sites in DNA through a 85 amino acid ets domain in the carboxyl region of the protein. Fli-1 is associated with Ewing sarcoma through at (11;22)(q24;q12) chromosomal translocation. This translocation brings the 5' region of the EWS gene into conjunction with the 3' region of the Fli-1 gene encoding the ets-DNA binding domain. Such a translocation is found in 85% of Ewing sarcomas. The resulting fusion protein has the DNA binding activity of Fli-1 and, with the EWS domain, it is also a more potent transcriptional activator than Fli-1 itself. The strong transforming activity of the EWS-Fli-1 fusion protein may in part be due to its ability to trans-activate the promoter for c-myc. C-myc is known to be elevated in Ewing sarcomas. Clone G146-254 was raised against a bacterially expressed Fli-1 ets domain fusion protein.
Development References (2)
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Bailly RA, Bosselut R, Zucman J. DNA-binding and transcriptional activation properties of the EWS-FLI-1 fusion protein resulting from the t(11;22) translocation in Ewing sarcoma. Mol Cell Biol. 1994; 14(5):3230-3241. (Biology). View Reference
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May WA, Lessnick SL, Braun BS. The Ewing's sarcoma EWS/FLI-1 fusion gene encodes a more potent transcriptional activator and is a more powerful transforming gene than FLI-1. Mol Cell Biol. 1993; 13(12):7393-7398. (Biology). View Reference
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