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You are here:Home » Antibodies » Antibodies-GTPase, Rab, Ras, Rho Proteins » Anti -Rab3A

Anti -Rab3A


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Clone Host Grade Applications
Polyclonal Rabbit Serum B IP
Rab proteins are low-molecular-weight GTP-binding proteins that form the largest branch of the Ras superfamily of GTPases. Located on the cytoplasmic face of organelles and vesicles, rab proteins are involved in intracellular membrane fusion reactions. Three membrane proteins, synaptosomal associated protein of 25kD (SNAP-25), synaptobrevin and syntaxin, form the core of a ubiquitous membrane fusion machine that interacts with the soluble proteins N-ethylmaleimide-sensitive factor (NSF) and a-SNAP. Rab proteins, in coordination with the core fusion machinery and Munc-18, help to mediate vesicle docking and fusion. There exist over 40 rab proteins that have been described in mammals and the best studied is rab 3A. Rab 3A is found to be abundant in presynaptic nerve terminals and is also found to be crucial in acrosomal exocytosis in human spermatozoa. Abnormal accumulation of rab 3A in the cytoplasm of Purkinje cells has been reported in the prion protein related Creutzfeldt-Jakob disease.
Catalog #R0006-75B
ApplicationsSuitable for use in Western Blot and Immunoprecipitation. Other applications not tested.
Recommended DilutionWestern Blot: 2ug/ml; Detects an ~21kD protein representing Rab 3A from Hepa1 cell lysate.
Optimal dilutions to be determined by the researcher.
Positive Control  
Hepa1 cells
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and add glycerol (40-50%). Freeze at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Clone TypePolyclonal
ConcentrationNot determined
FormSupplied as a liquid in PBS, 1mg/ml BSA, 0.05% sodium azide.
ImmunogenSynthetic Peptide: M(1)ASATDSRYGQKESSDQN(18)C. Immunizing peptide corresponds to amino acid residues 1-18 from human Rab 3A.
This sequence is completely conserved between human, mouse, and rat rab 3A.
SpecificityRecognizes human Rab3A. Species Crossreactivity: Rat, Mouse, Dog and Hamster.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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