Cell Signaling Technology

Product Pathways - Wnt / Hedgehog / Notch

β-Catenin Antibody (Amino-terminal Antigen) #9581

Applications Reactivity Sensitivity MW (kDa) Source
W IP IF-F F ChIP H M R Mk Hm B Endogenous 92 kDa Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IF-F=Immunofluorescence (Frozen)  F=Flow Cytometry  ChIP=Chromatin IP
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Monkey  Hm=Hamster  B=Bovine
Species cross-reactivity is determined by Western blot.

Protocols

Specificity / Sensitivity

Beta-Catenin Antibody detects endogenous levels of total β-catenin protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Asp56 of human β-catenin. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of total cell extracts from 293 and NIH/3T3 cells, using β-Catenin Antibody (Amino-terminal Antigen).

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of 293 cells, using β-Catenin Antibody (Amino-terminal Antigen) (blue) compared to a nonspecific negative control antibody (red).

IF-F

IF-F

Confocal immunofluorescence image of mouse colon labeled with β-Catenin Antibody (Amino-terminal Antigen) (red). Blue pseudocolor = DRAQ5™ (fluorescent DNA dye).


Chromatin IP

Chromatin IP

Chromatin immunoprecipitations were performed with cross-linked chromatin from 4 x 106 HCT116 cells and either 20 μl of β-Catenin Antibody (Amino-terminal Antigen) #9581 or 2 μl of Normal Rabbit IgG #2729 using SimpleChIP™ Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by Real-Time PCR using primers specific for the CAMK2D and c-MYC genes, and the heterochromatic Alpha Satellite repeat element. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.

Background

β-catenin is a key downstream effector in the Wnt signaling pathway (1). It is implicated in two major biological processes in vertebrates: early embryonic development (2) and tumorigenesis (3). CK1 phosphorylates β-catenin on Ser45. This phosphorylation event primes β-catenin for subsequent phosphorylation by GSK-3 (4-6). GSK-3β destabilizes β-catenin by phosphorylating it at Ser33, Ser37 and Thr41 (7). Mutations in these phosphorylation sites, which result in the stabilization of β-catenin protein levels, have been found in many tumor cell lines (8).

  1. Cadigan, K.M. and Nusse, R. (1997) Genes Dev. 11, 3286-3305.
  2. Wodarz, A. and Nusse, R. (1998) Annu. Rev. Cell. Dev. Biol. 14, 59-88.
  3. Polakis, P. (1999) Curr. Opin. Genet. Dev. 9, 15-21.
  4. Amit, S. et al. (2002) Genes Dev. 16, 1066-1076.
  5. Lin, C. et al. (2002) Cell 108, 837-847.
  6. Yanagawa, S. et al. (2002) EMBO J. 21, 1733-1742.
  7. Yost, C. et al. (1996) Genes Dev. 10, 1443-1454.
  8. Morin, P.J. (1997) Science 275, 1787-1790.

Application References

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This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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