Product Pathways - Development
LEF1 (C12A5) Rabbit mAb (Alexa Fluor® 488 Conjugate) #8490
|8490S||100 µl (50 tests)||---||In Stock||---|
|8490||carrier free and custom formulation / quantity||email request|
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|F||1:50||Human, Mouse, Rat||Endogenous||Rabbit IgG|
Species cross-reactivity is determined by western blot using the unconjugated antibody.
Applications Key: F=Flow Cytometry
Specificity / Sensitivity
LEF1 (C12A5) Rabbit mAb (Alexa Fluor® 488 Conjugate) detects endogenous levels of total LEF1 protein. It does not recognize the dominant negative forms of LEF1 generated by an alternative promoter.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro82 of human LEF1 protein.
This Cell Signaling Technology antibody is conjugated to Alexa Fluor® 488 fluorescent dye and tested in-house for direct flow cytometric analysis in human cells. This antibody is expected to exhibit the same species cross-reactivity as the unconjugated LEF1 (C12A5) Rabbit mAb #2230.
LEF1 and TCF are members of the high mobility group (HMG) DNA binding protein family of transcription factors that consists of the following: Lymphoid Enhancer Factor 1 (LEF1), T Cell Factor 1 (TCF1), TCF3, and TCF4 (1). LEF1 and TCF1 were originally identified as important factors regulating early lymphoid development (2) and act downstream in Wnt signaling. LEF1 and TCF bind to Wnt response elements to provide docking sites for β-catenin, which translocates to the nucleus to promote the transcription of target genes upon activation of Wnt signaling (3). LEF1 and TCF are dynamically expressed during development and aberrant activation of the Wnt signaling pathway is involved in many types of cancers including colon cancer (4,5).
LEF1 has several alternatively spliced isoforms. LEF1 also has an alternative promoter that is preferentially active in lymphocytes. The isoforms generated by this alternative promoter have no amino-terminal β-catenin binding domain and may function in a dominant negative manner (6-8).
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- Logan, C.Y. and Nusse, R. (2004) Annu Rev Cell Dev Biol 20, 781-810.
- Hovanes, K. et al. (2000) Nucleic Acids Res 28, 1994-2003.
- Hovanes, K. et al. (2001) Nat Genet 28, 53-57.
- Kobielak, A. et al. (2001) Acta Biochim Pol 48, 221-226.
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For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
This antibody is developed, validated, and produced by CST using in part technology under license (granting certain rights including those under U.S. Patent No. 5,675,063) from Epitomics, Inc.
The Alexa Fluor® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc., for research use only, except for use in combination with DNA microarrays. The Alexa Fluor® dyes (except for Alexa Fluor® 430 dye) are covered by pending and issued patents. Alexa Fluor® is a registered trademark of Molecular Probes, Inc.