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Synaptophysin (SYP, Major Synaptic Vesicle Protein p38, MRXSYP)

Synaptophysin (SYP, Major Synaptic Vesicle Protein p38, MRXSYP)

Cat no: S9108-20B

Supplier: United States Biological
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Synaptophysin (SYP) is a neuronal synaptic vesicle glycoprotein that is expressed in neuroendocrine cells and neoplasms, and thus can be used as a marker in tumor diagnosis (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). Applications: Suitable for use in Western Blot and Immunoprecipitation. Other applications not tested. Recommended Dilution: Western Blot: 1:1000 Incubate membrane with diluted antibody in 5% BSA, 1X TBS, 0.1% Tween-20 at 4 degrees C with gentle shaking, overnight. Immunoprecipitation: 1:50 Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Catalogue number: S9108-20B
Reactivities: Human, Mouse, Rat
Hosts: Rabbit
Applications: Immunoprecipitation, Western Blot
Size: 100ul
Form: Supplied as a liquid in 10mM sodium HEPES, pH 7.5, 150mM sodium chloride, 100ug/ml BSA, less than 0.02% sodium azide, 50% glycerol.
P type: Mab
Isotype: IgG
Purity: Purified
References: (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.
Additional info: Recognizes endogenous levels of total synaptophysin. Species Crossreactivity: mouse, rat.

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