Rabphilin 3A (RPH3A) Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IF, IHC, WB
Recommend Dilution	Western blot: 1/500-1/1000. Immunohistochemistry on paraffin sections: 1/50-/1/200. Immunofluorescence: 1/50-1/200.
Reactivity	Human, Mouse, Rat
Host	Rabbit
Clonality	Polyclonal
Immunogen	Synthetic peptide, corresponding to amino acids 200-250 of Human Rabphilin-3A.
Specificity	This antibody detects endogenous levels of Rabphilin 3A protein. (region surrounding Pro231)
Formulation	Phosphate buffered saline (PBS), pH~7.2 State: Aff - Purified State: Liquid purified Ig fraction (> 95% (by SDS-PAGE) Preservative: 0.05% Sodium Azide
Concentration	1.0 mg/ml
Purification	Affinity Chromatography using epitope-specific immunogen
Conjugation	Unconjugated
Storage Condition	Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer. Avoid repeated freezing and thawing.
Predicted Protein Size	~ 75 kDa
Gene Name	rabphilin 3A
Database Link	Entrez Gene 22895 Human UniProt ID Q9Y2J0
Background	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.
Synonyms	Rabphilin 3A, Exophilin 1, Exophilin-1, KIAA0985
Reference Data

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