Catalogue number: |
PA1315 |
Price: |
$200.00 |
Reactivities: |
Human, Mouse, Rat |
Applications: |
Immunohistochemistry, Western Blot |
Size: |
100ug/vial |
Gene: |
SNAP25 |
Swiss prot: |
P60880 |
Form: |
Lyophilized |
Format: |
Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. |
Storage temp: |
"At -20 degree C for one year. After reconstitution, at 4 degree C for one month. It can also be aliquotted and stored frozen at -20 degree C for a longer time.
Avoid repeated freezing and thawing.
"
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Scientific background: |
Synaptosome-associated protein of 25,000 daltons also known as SNAP-25 is a protein which in humans encodes a 25-kD protein of 206 amino acids. It was first investigated as a neuron-specific gene preferentially expressed in mouse hippocampus. The tSNARE (the target-membrane soluble NSF-attachment protein receptor, where NSF is N-ethylmaleimide-sensitive fusion protein) synaptosomal-associated protein of 25 kDa (SNAP-25) is expressed in pancreatic B-cells and its cleavage by botulinum neurotoxin E (BoNT/E) abolishes stimulated secretion of insulin. In the nervous system, two SNAP-25 isoforms (a and b) have been described, which are produced by alternative splicing. Nagy et al. (2004) identified mammalian Snap25a and Snap25b as targets of protein kinase A, a key regulator of neurosecretion that primes slowly releasable pools and readily releasable pools of secretory vesicles. SNAP-25 inhibits P/Q- and L-type voltage-gated calcium channels located presynaptically and interacts with the synaptotagmin C2B domain in Ca2+-independent fashion. In glutamatergic synapses SNAP-25 decreases the Ca2+ responsiveness, while it is naturally absent in GABAergic synapses. |
References: |
1. Gonelle-Gispert, C.; Halban, P. A.; Niemann, H.; Palmer, M.; Catsicas, S.; Sadoul, K. : SNAP-25a and -25b isoforms are both expressed in insulin-secreting cells and can function in insulin secretion. Biochem. J. 339: 159-165, 1999.
2. Nagy, G.; Reim, K.; Matti, U.; Brose, N.; Binz, T.; Rettig, J.; Neher, E.; Sorensen, J. B. : Regulation of releasable vesicle pool sizes by protein kinase A-dependent phosphorylation of SNAP-25. Neuron 41: 417-429, 2004.
3. Hodel A (1998). "SNAP-25". The International Journal of Biochemistry & Cell Biology 30 (10): 1069 |
Additional info: |
A synthetic peptide corresponding to a sequence at the C-terminal of human SNAP25, identical to the related rat and mouse sequence. |