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Invitrogen
Rat RPH3A (aa 1-18) Synthetic Peptide
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Product Details
PEP-102
Product Specifications
Class
Synthetic
Type
Peptide
Conjugate
Form
Lyophilized
Concentration
0.5 mg/mL
Amount
50 µg
Storage conditions
-20°C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
PEP-102 is a 18 amino acid synthetic peptide whose sequence corresponds to amino acid residues 1-18 of rat rabphilin 3A. The sequence of this peptide is (amino to carboxy terminus): M (1)-T-D-T-V-V-N-R-W-M-Y-P-G-D-G-P-L-Q (18)
This peptide may be used for neutralization and control experiments with the polyclonal antibody that reacts with this product and rat rabphilin 3A, catalog # PA1-774. Using a solution of peptide of equal volume and concentration to the corresponding antibody will yield a large molar excess of peptide (~70-fold) for competitive inhibition of antibody-protein binding reactions.
Reconstitute with 0.1 mL of distilled water.
Target Information
The carboxy-terminal of rabphilin-3A consists of two C2 domains, A and B, and the amino-terminal (residues 45-170) contains a cysteine-rich rich region with two zinc finger motifs. Rabphilin-3A belongs to a family of other carboxyterminal type (C-type) tandem C2 proteins, which includes synaptotagmins and Doc2. Rabphilin is expressed in neuroendocrine cells and co-localizes with Rab3A on synaptic vesicles and chromaffin granules. Rabphilin-3A binds Rab3a/GTP/Mg+ within amino-terminal residues 45 and 170. Rabphilin-3A binds calcium ions and phosphatidylinositol 4,5-bisphophate containing lipid vesicles within its C2 domains. Rabphilin-3A is a positive regulator of calcium dependent exocytosis, while Rab3a is a negative regulator of exocytosis. Although rabphilin-3A associates with Rab3a, they seem to influence exocytosis independently of each other. Rabphilin-3A effects are likely mediated through interactions with an unknown factor that recognizes the Rab3 binding domain.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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