Synaptic Systems - Synaptophysin1

Cat. No.: 101 011C2

Amount: 50 µg

Price: $475.00

Serine-129 phosphorylation of α-synuclein is an activity-dependent trigger for physiologic protein-protein interactions and synaptic function.
Parra-Rivas LA, Madhivanan K, Aulston BD, Wang L, Prakashchand DD, Boyer NP, Saia-Cereda VM, Branes-Guerrero K, Pizzo DP, Bagchi P, Sundar VS, et al.
Neuron (2023) 11124: 4006-4023.e10. 101 011C2 WB; tested species: mouse

Pyk2 overexpression in postsynaptic neurons blocks amyloid β1-42-induced synaptotoxicity in microfluidic co-cultures.
Kilinc D, Vreulx AC, Mendes T, Flaig A, Marques-Coelho D, Verschoore M, Demiautte F, Amouyel P, , Eysert F, Dourlen P, et al.
Brain communications (2020) 22: fcaa139. 101 011C2 ICC; tested species: rat

ICC

Background

Synaptophysin1, also referred to as p38-1, is a membrane glycoprotein of synaptic vesicles that is ubiquitously expressed in all neurons and in many endocrine cells. It is currently the most widely used marker for nerve terminals and probably the best marker for the pathologist in differentiating neuroendocrine tumors.
Synaptophysin1 has four transmembrane domains with both N- and C-terminus facing the cytoplasm. It binds to synaptobrevin1 and synaptobrevin2 in detergent extracts but its function has not been elucidated completely. It forms a complex with dynamin at high Ca²⁺ concentration suggesting an involvement in synaptic vesicle endocytosis. As typical for synaptic vesicle proteins, synaptophysin1 represents a small protein family with two additonal members, synaptoporin (synaptophysin2) and panthophysin. Like synaptophysin1, synaptoporin is widely expressed in neurons and colocalizes with synaptophysin1 on synaptic vesicles whereas panthophysin is expressed in all tissues.

1 ) Janz R et al., Neuron (1999)
2 ) McMahon HT et al., Proc. Natl. Acad. Sci. U.S.A. (1996)
3 ) Südhof TC et al., Nature (1995)
4 ) Buckley KM et al., J. Cell Biol. (1987)
5 ) Leube RE et al., EMBO J. (1987)
6 ) Südhof TC et al., Science (1987)

Protocols

ICC

Other products for this target

Cat. No. 101 011C2	50 µg purified IgG, lyophilized, fluorescence-labeled with Cyanine 2. Fluorescence labeled antibodies conjugated to (Sulfo-)Cyanine dyes are well suited for standard epi-fluorescence setups and confocal microscopy. Cyanine 2: λ_ex 492 nm / λ_em 508 nm Sulfo-Cyanine 3: λ_ex 554 nm / λ_em 568 nm Sulfo-Cyanine 5: λ_ex 649 nm / λ_em 667 nm (Sulfo-)Cyanine 5 dyes are well suited for STORM high resolution microscopy. Sulfo-Cyanines are highly water soluble and allow a higher labeling degree and consequently brighter conjugates. Albumin and azide were added for stabilization. For reconstitution add 50 µl H₂O to get a 1mg/ml solution in PBS. Either add 1:1 (v/v) glycerol, then aliquot and store at -20°C until use, or store aliquots at -80°C without additives. Reconstitute immediately upon receipt! Avoid bright light when working with the antibody to minimize photo bleeching of the fluorescent dye.
Applications	WB: N/A IP: N/A ICC: 1 : 100 up to 1 : 1000 gallery IHC: not tested yet IHC-P: not tested yet Western blot (WB); separation of proteins by PAGE and subsequent transfer to a membrane. Detection of target molecules is carried out with antibodies. Some antibodies require special sample preparation steps. For details, please refer to the “Remarks” section. Immunoprecipitation (IP); Immunoisolation or pulldown of a target molecule using an antibody. For details and product specific hints, please refer to the ”Remarks” section. Immunocytochemistry (ICC) on 4% PFA fixed cells. Immunoreactivity is usually revealed by fluorescence. Some antibodies require special fixation methods. For details, please refer to the “Remarks” section. Immunohistochemistry (IHC) on 4% PFA perfusion fixed tissue with 24h PFA post fixation. Immunoreactivity is usually revealed by fluorescence or a chromogenic substrate. Some antibodies require special fixation methods or antigen retrieval steps. For details, please refer to the ”Remarks” section. Immunohistochemistry (IHC-P) of formalin fixed, paraffin embedded (FFPE) tissue (some antibodies require special antigen retrieval steps, please refer to the ”Remarks” section). Immunoreactivity is usually revealed by fluorescence or a chromogenic substrate.
Label	Cyanine 2
Clone	7.2
Subtype	IgG1 (λ light chain)
Immunogen	Full-length recombinant rat synaptophysin (UniProt Id: P07825)
Epitop	AA 219 to 307 from rat Synaptophysin1 (UniProt Id: P07825)
Reactivity	Reacts with: human (P08247), rat (P07825), mouse (Q62277), mammals. Weaker signal: zebrafish, other vertebrates. Other species not tested yet.
Specificity	K.O. validated
Remarks	Widely used as marker for nerve terminals and neuroendocrine tumors. For unknown reason, neuronal synaptophysin is better recognised than neuroendocrine synaptophysin. If this is a problem, the polyclonal rabbit antibody, cat. no. 101 002 or 101 203 are recommended.
Data sheet	101_011c2.pdf

Synaptophysin1 antibody - 101 011C2 K.O.

References for Synaptophysin1 - 101 011C2