Catalog # PP1301
Plexin A1 (Sema Domain) Antibody
Rabbit Polyclonal
| ELISA | 1:2000 |
| ICC | 1:100 |
| IHC | 1:100 |
| IP | 1:50 |
| WB | 1:1000 |
Size 100 μl
Species Reactivity Hu, Rt, Ms
MW 220 kDa
Plexins are a family of large integral membrane proteins that complex with neuropilins to form semaphorin co-receptors. The extracellular region of plexins contains a semaphorin domain, multiple glycine-rich motifs, and MET-related sequences. The cytoplasmic region contains a Sex/Plexin domain and putative tyrosine phosphorylation sites that mediate signal transduction after activation. This region in Plexin-A1 binds the RhoGTPases, Rnd1 and RhoD. Recruitment of Rnd1 has been implicated in the cytoskeletal collapse that occurs after semaphorin-mediated activation of Plexin-A1, while RhoD may block this collapsing activity through interaction with the cytoplasmic region of Plexin-A1. The expression of Plexin-A1, along with the co-receptor Neuropilin-1, is upregulated in neurons after central nervous system injury. The axons from these neurons cannot cross semaphorin 3A-containing regions at the site of injury. Thus, semaphorin 3A and its co-receptors, Plexin-A1 and Neuropilin-1, may have significant roles in axon regeneration after neuronal injury.
References
Tamagnone, L. et al. (1999) Cell 99:71.
Kolodkin, A.L. et al. (1993) Cell 75:1389.
Western blots showing Cos-7 cells transfected with mouse Myc-tagged Plexin-A1 (lanes 1 & 3), neonatal rat brain (lane 2), or Plexin-A1 immunoprecipitated from Myc-tagged Plexin-A1 transfected cells using anti-Myc (lane 4) or anti-Plexin-A1 (PP1301; lane 5). These blots were probed with either the affinity purified anti-Plexin-A1 (PP1301; lanes 1 & 2) or with mouse monoclonal anti-Myc (lanes 3-5).
Immunocytochemical double labeling using anti-Myc mouse monoclonal and anti-Plexin-A1 rabbit polyclonal (PP1301) antibodies in Cos-7 cells mock transfected (A,D) or transfected with Myc-tagged mouse Plexin-A1 construct (B,E). The specificity of the binding in E was demonstrated by using Plexin-A1 peptide (PX1305) in the presence of this anti-Plexin-A1 antibody (C,F).
*For more information, see UniProt Accession Q9UIW2
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*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.
This kit contains:
