Cell Signaling Technology

Product Pathways - Cytoskeletal Signaling

Phospho-Cofilin (Ser3) (77G2) Rabbit mAb #3313

Applications Reactivity Sensitivity MW (kDa) Isotype
W IF-IC H M R Mk B Endogenous 19 Rabbit IgG

Applications Key:  W=Western Blotting  IF-IC=Immunofluorescence (Immunocytochemistry)
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Monkey  B=Bovine
Species cross-reactivity is determined by Western blot.

Protocols

Specificity / Sensitivity

Phospho-Cofilin (Ser3) (77G2) Rabbit mAb detects endogenous levels of cofilin only when phosphorylated at serine 3.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser3 of human cofilin.

Western Blotting

Western Blotting

Western blot analysis of NIH/3T3 cells, λ phosphatase-treated or untreated, and various other cell lines, using Phospho-Coflin (Ser3) (77G2) Rabbit mAb #3313.

IF-IC

IF-IC

Confocal immunofluorescent analysis of MCF-7 cells either untreated (left) or lambda-phosphatase treated (right), using Phospho-Cofilin (Ser3) (77G2) Rabbit mAb (green). Blue pseudocolor = DRAQ5™ (fluorescent DNA dye).

Background

Cofilin and ADF (actin-depolymerization factor) are members of a family of essential conserved small actin-binding proteins that play pivotal roles in cytokinesis, endocytosis, embryonic development, stress response and tissue regeneration (1). In response to stimuli, cofilin promotes the regeneration of actin filaments by severing preexisting filaments (2). The severing activity of cofilin is inhibited by LIMK or TESK phosphorylation at Ser3 of cofilin (3-5). Phosphorylation at Ser3 also regulates cofilin translocation from the nucleus to the cytoplasm (6).

  1. Carlier, M. et al. (1999) J. Biol. Chem. 274, 33827-33830.
  2. Condeelis, J. (2001) Trends Cell Biol. 11, 288-293.
  3. Arber, S. et al. (1998) Nature 393, 805-809.
  4. Yang, N. et al. (1998) Nature 393, 809-812.
  5. Toshima, J. et al. (2001) J. Biol. Chem. 276, 31449-31458.
  6. Nebl, G. et al. (1996) J. Biol. Chem. 271, 26276-26280.

Application References

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Companion Products

Rabbit Monoclonals Produced Using Epitomics® Technology, U.S. Patent No. 5,675,063.


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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