
Catalog # SP1401
Semaphorin-3A (N-terminal) Antibody
Rabbit Polyclonal
ELISA | 1:2000 |
ICC | 1:400 |
WB | 1:1000 |
Size 100 μl
Species Reactivity Hu, Rt, Ms
MW 95 kDa
One family of inhibitory axon guidance molecules is the semaphorins. The semaphorins include secreted, transmembrane, and GPI-anchored extracellular molecules that are involved in regulating axon guidance by inhibiting axons from growing toward incorrect targets. Semaphorin 3A (Sema3A) may play a particularly interesting role in limiting axon regeneration since it is expressed in meningeal fibroblasts that invade the injured spinal cord and surround the glial scar. In addition, the Sema3A co-receptors, Neuropilin-1 and Plexin-A1, are expressed on axons that regenerate up to the injured region, but do not cross this Sema3A-containing region. Thus, Sema3A and its co-receptors may have important roles in regulating axon guidance during neuronal development and after neuronal injury.
References
Pasterkamp, R.J. & Verhaagen, J. (2001) Brain Res Rev 35:36.
Kolodkin, A.L. et al. (1993) Cell 75:1389.
Luo, Y. et al. (1993) Cell 75:217.

Western blots of neonatal rat brain (lanes 1, 3 & 5) and human recombinant Sema3A/Fc chimera (95/125 kDa) (lanes 2, 4 & 6). Blots were probed with anti-Sema3A (SP1401) (lanes 1 & 2), anti-Sema3A (SP1221) (lanes 3 & 4) and anti-Sema3A (SP1241) (lane 5 & 6). The antibodies recognize both the 95 kDa and 125 kDa forms of the recombinant Sema3A.

Immunocytochemical labeling of Sema-3A in aldehyde-fixed and NP-40-permeabilized NGF-differentiated PC12 cells. The cells were labeled with rabbit polyclonal Sema-3A (N-terminal) antibody (SP1401), then the antibody was detected using appropriate secondary antibody conjugated to DyLight® 594.
*For more information, see UniProt Accession Q14563
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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: