Cell Signaling Technology

Product Pathways - Development

DLL1 Antibody #2588

Applications Reactivity Sensitivity MW (kDa) Source
W IP R (H) Transfected Only 82 Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human  R=Rat
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

DLL1 Antibody detects transfected levels of DLL1. It does not recognize transfected levels of rat DLL3 and human DLL4.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to a region surrounding residue Ala627 of human DLL1. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from COS cells, untransfected or transiently transfected with a construct expressing rat DLL1 protein, using DLL1 Antibody.

Background

Notch signaling is activated upon engagement of the Notch receptor with its ligands, the DSL (Delta, Serrate, Lag2) proteins of single-pass type I membrane proteins. The DSL proteins contain multiple EGF-like repeats and a DSL domain that is required for binding to Notch (1,2). Five DSL proteins have been identified in mammals: Jagged1, Jagged2, Delta-like (DLL) 1, 3 and 4 (3). Ligand binding to the Notch receptor results in two sequential proteolytic cleavages of the receptor by the ADAM protease and the γ-secretase complex. The intracellular domain of Notch is released and then translocates to the nucleus where it activates transcription. Notch ligands may also be processed in a way similiar to Notch, suggesting a bi-directional signaling through receptor-ligand interactions (4-6).

  1. Wilson, A. and Radtke, F. (2006) FEBS Lett. 580, 2860-2868.
  2. Hansson, E.M. et al. (2004) Semin. Cancer Biol. 14, 320-328.
  3. Chiba, S. (2006) Stem Cells 24, 2437-2447.
  4. Bland, C.E. et al. (2003) J. Biol. Chem. 278, 13607-13610.
  5. Six, E. et al. (2003) Proc. Natl. Acad. Sci. USA 100, 7638-7643.
  6. LaVoie, M.J. and Selkoe, D.J. (2003) J. Biol. Chem. 278, 34427-34437.

Application References

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Companion Products

For Research Use Only. Not For Use In Diagnostic Procedures.

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