Anti-Synapsin-2 Antibody, clone 19.21

Synapsin-2 (UniProt Q63537; also known as Synapsin II) is encoded by the Syn2 gene (Gene ID 29179) in rat species. The synapins constitute a family of abundant neuronal phosphoproteins that regulate SV trafficking and neurotransmitter release at the pre-synaptic terminal. Three genes exisit in mammals, encoding altogether 11 synapsin members by alternative splicings (Synapsin Ia & Ib by SYN1, Synapsin IIa & IIb by SYN2, Synapsin IIIa through IIIf by SYN3), Syn III is the most precociously expressed isoform that has a role in the early phases of neural development and is downregulated in mature neurons. On the other hand, Syn I and Syn II are expressed at low levels at birth and their expressions progressively increase during synaptogenesis to reach a stable plateau at 1–2 months of life. The NH2-terminal region is divided in A, B, and C domains and is highly conserved among synapsin isoforms. Synapsins are regulated by postransloational phosphorylations. Domain A contains PKA and CaMKI/IV phosphorylation sites, domain B contains MAPK/Erk phosphorylation sites, and domain C is phosphorylated by Src. The c-terminal regions contain spliced domains and diverge among synapsin isoforms (domain D in Syn Ia and Ib, domain G in Syn IIa and IIb, domain H in Syn IIa, and domain J in Syn IIIa), although they all bear proline-rich regions binding to several SH3-containing proteins and additional phosphorylation sites for CaMKII, MAPK/Erk, and cdk1/5.

Clone 19.21 reacts with both synapsin-2 spliced isoforms (IIa and IIb). Clone 19.21 does not react with any of the two synapsin-1 spliced isoforms (Vaccaro, P., et al. (1997). Brain Res. Mol. Brain Res. 52(1):1-16).

Epitope: Near N-terminus

Purified recombinant rat synapsin-2.

Anti-Synapsin-2 Antibody, clone 19.21 is an antibody against Synapsin-2 for use in Western Blotting, Immunohistochemistry (Paraffin), Immunoprecipitation, Enzyme Assay.

Immunohistochemistry Analysis: A 1:250-1,000 dilution from a representative lot detected Synapsin-2 in human cerebral cortex, mouse cerebellum, and rat cerebral cortex tissue.
Western Blotting Analysis: A representative lot detected exogenously expressed wild-type and mutant (Y236S, G464R) human synapsin II in HeLa cells and Syn2-/- murine neurons transfected with the respective constructs (Corradi, A., et al. (2014). Hum. Mol. Genet. 23(1):90-103).
Western Blotting Analysis: A representative lot detected synapsin IIa/IIb, but not Ia/Ib, in rat brain cytosolic extracts (Vaccaro, P., et al. (1997). Brain Res. Mol. Brain Res. 52(1):1-16).
Immunoprecipitation Analysis: A representative lot immunoprecipitated synapsin IIa/IIb, but not Ia/Ib, from rat brain synaptosomal preparations (Vaccaro, P., et al. (1997). Brain Res. Mol. Brain Res. 52(1):1-16).
Enzyme Assay Analysis: A representative lot, when added 2 hours prior to cAMP, prevented PKA-catalyzed phosphorylation of synapsin IIa/IIb in an in vitro kinase assay using rat brain synaptosomal preparations (Vaccaro, P., et al. (1997). Brain Res. Mol. Brain Res. 52(1):1-16).

Research Category
Neuroscience

Research Sub Category
Developmental Neuroscience

Evaluated by Western Blotting in rat brain tissue lysate.

Western Blotting Analysis: 0.25 µg/mL of this antibody detected Synapsin-2 in 10 µg of rat brain tissue lysate.

~63 and 52 kDa observed

Protein G Purified

Format: Purified

Purified mouse monoclonal IgG2aκ antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stable for 1 year at 2-8°C from date of receipt.

Concentration: Please refer to lot specific datasheet.

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