Preparation And Storage
Recommended Assay Procedures
G146-222 has been shown to recognize in vitro translated, recombinant bacterially expressed and endogenous B cell Fli-1. In gel shift assays, this antibody disrupts complexes of Fli-1 and DNA probe, however, this application is not tested at BD Pharmingen.
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.
Fli-1 is a 50 kDa ets-related transcription factor. Like other ets-related proteins it binds to consensus sites in DNA through an 85 amino acid ets domain in the carboxyl region of the protein. Fli-1 is associated with Ewing sarcoma (EWS) through a t(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 transactivate the promoter for c-myc. G146-222 recognizes human Fli-1. The antibody 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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For Research Use Only. Not for use in diagnostic or therapeutic procedures.