Cell Signaling Technology

Product Pathways - Neuroscience

Plexin A4 (C5D1) Rabbit mAb #3816

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP M R (H) Endogenous 212 Rabbit IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human  M=Mouse  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

Plexin A4 (C5D1) Rabbit mAb detects endogenous levels of total Plexin A4 protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a GST-fusion protein corresponding to residues from the human sequence of Plexin A4.

Western Blotting

Western Blotting

Western blot analysis of extracts from mouse brain and rat brain using Plexin A4 (C5D1) Rabbit mAb.

Background

Class 3 secreted semaphorin (Sema3A) is a chemorepellent that acts upon a wide variety of axons. As such, it induces a dramatic redistribution and depolymerization of actin filaments that results in growth cone collapse. Plexins are single membrane-spanning signaling proteins encompassing Plexin A1, A2, A3, and A4. Plexins form a complex with neuropilin-1 and -2 and the cell adhesion protein L1 to form a functional semaphorin receptor (1,2). The GTPase Rnd1 binds to the cytoplasmic domain of Plexin A1 to trigger cytoskeletal collapse. In contrast, the GTPase RhoD blocks Rnd1-mediated Plexin A1 activation and repulsion of sympathetic axons by Sema3A (3).

Both Plexin A3 and A4 mediate the responses to class 3 Semaphorins in sensory and sympathetic neurons. In particular, Plexin A4 is responsible for signaling of Sema3A via neuropilin-1, while Plexin A3 is responsible for signaling of Sema3F via neuropilin-2 (4).

  1. Pasterkamp, R.J. and Kolodkin, A.L. (2003) Curr Opin Neurobiol 13, 79-89.
  2. Takahashi, T. and Strittmatter, S.M. (2001) Neuron 29, 429-39.
  3. Zanata, S.M. et al. (2002) J Neurosci 22, 471-7.
  4. Yaron, A. et al. (2005) Neuron 45, 513-23.

Application References

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

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