Cell Signaling Technology

Product Pathways - Cytoskeletal Signaling

Ezrin/Radixin/Moesin Antibody #3142

Applications Reactivity Sensitivity MW (kDa) Source
W IHC-P H M R Mk B (X) Endogenous 75 Moesin. 80 Ezrin and Radixin. Rabbit

Applications Key:  W=Western Blotting  IHC-P=Immunohistochemistry (Paraffin)
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Monkey  X=Xenopus  B=Bovine
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

Ezrin/Radixin/Moesin Antibody detects endogenous levels of ezrin, radixin and moesin. The antibody does not cross-react with related proteins such as merlin or band 4.1.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the residues surrounding Thr567 of human ezrin. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using Ezrin/Radixin/Moesin Antibody.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human breast carcinoma using Ezrin/Radixin/Moesin Antibody in the presence of control peptide (left) or antigen-specific peptide (right).

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human colon carcinoma using Ezrin/Radixin/Moesin Antibody.


Background

The ezrin, radixin, and moesin (ERM) proteins function as linkers between the plasma membrane and the actin cytoskeleton and are involved in cell adhesion, membrane ruffling, and microvilli formation (1). ERM proteins undergo intra or intermolecular interaction between their amino- and carboxy-terminal domains, existing as inactive cytosolic monomers or dimers (2). Phosphorylation at a carboxy-terminal threonine residue (Thr567 of ezrin, Thr564 of radixin, Thr558 of moesin) disrupts the amino- and carboxy-terminal association and may play a key role in regulating ERM protein conformation and function (3,4). Phosphorylation at Thr567 of ezrin is required for cytoskeletal rearrangements and oncogene-induced transformation (5). Ezrin is also phosphorylated at tyrosine residues upon growth factor stimulation. Phosphorylation of Tyr353 of ezrin transmits a survival signal during epithelial differentiation (6).

  1. Tsukita, S. and Yonemura, S. (1999) J. Biol. Chem. 274, 34507-34510.
  2. Mangeat, P. et al. (1999) Trends Cell Biol. 9, 187-192.
  3. Matsui, T. et al. (1998) J. Cell Biol. 140, 647-657.
  4. Gautreau, A. et al. (2000) J. Cell Biol. 150, 193-203.
  5. Tran Quang, C. et al. (2000) EMBO J. 19, 4565-4576.
  6. Gautreau, A. et al. (1999) Proc. Natl. Acad. Sci. USA 96, 7300-7305.

Application References

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

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