Cell Signaling Technology
XP Monoclonal Antibody

Product Pathways - Neuroscience

Synaptophysin (D35E4) XP® Rabbit mAb #5461

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP IF-F H M R Endogenous 38 Rabbit IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IF-F=Immunofluorescence (Frozen)
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

Synaptophysin (D35E4) XP® Rabbit mAb detects endogenous levels of total synaptophysin protein. Some nuclear background staining was observed by confocal immunofluorescent analysis.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide surrounding Ala230 of human synaptophysin protein.

Western Blotting

Western Blotting

Western blot analysis of extracts from mouse and rat brain using Synaptophysin (D35E4) XP® Rabbit mAb.

IF-F

IF-F

Confocal immunofluorescent image of mouse brain labeled with Synaptophysin (D35E4) XP® Rabbit mAb (green) and β3-Tubulin (TU-20) Mouse mAb #4466 (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).

Background

Synaptophysin (SYP) is a neuronal synaptic vesicle glycoprotein that is expressed in neuroendocrine cells and neoplasms (1). Synaptophysin contains four transmembrane domains that form a hexameric channel or gap junction-like pore (2). Synaptophysin binds to the SNARE protein synaptobrevin/VAMP, which prevents the inclusion of synaptobrevin in the synaptic vesicle fusion complex and creates a pool of synaptobrevin for exocytosis when synapse activity increases (3). Synaptophysin is also responsible for targeting synaptobrevin 2/VAMP2 to synaptic vesicles, a critical component of the fusion complex (4).

  1. Wiedenmann, B. et al. (1986) Proc Natl Acad Sci USA 83, 3500-4.
  2. Valtorta, F. et al. (2004) Bioessays 26, 445-53.
  3. Arthur, C.P. and Stowell, M.H. (2007) Structure 15, 707-14.
  4. Bonanomi, D. et al. (2007) Biochem J 404, 525-34.

Application References

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!

Companion Products


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

Products