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). Wiedenmann, B. et al. (1986) Proc Natl Acad Sci USA 83, 3500-4. Valtorta, F. et al. (2004) Bioessays 26, 445-53. Arthur, C.P. and Stowell, M.H. (2007) Structure 15, 707-14. Bonanomi, D. et al. (2007) Biochem J 404, 525-34.
Host
Rabbit
Immunogen
Peptide sequence around aa.257~261(G-P-T-S-F)derived from Rat synaptophysin 2.
Raised In
Rabbit
Reactivity
Mouse, Rat
Regulatory
RUO
Relevance
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).
Wiedenmann, B. et al. (1986) Proc Natl Acad Sci USA 83, 3500-4. Valtorta, F. et al. (2004) Bioessays 26, 445-53. Arthur, C.P. and Stowell, M.H. (2007) Structure 15, 707-14. Bonanomi, D. et al. (2007) Biochem J 404, 525-34.
Species
Rattus Norvegicus (Rat)
Specificity
The antibody detects endogenous levels of total synaptophysin 2 protein.
Intrinsic membrane protein of small synaptic vesicles. Probable vesicular channel protein.
Protein Families
Synaptophysin/synaptobrevin family
Tissue Specificity
Central nervous system.
Buffer
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Form
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Format
liquid
Purification
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Purity
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.