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S3062 Sigma-Aldrich

Anti-α-Synuclein antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

Synonym: Anti-SNCA



Related Categories Alphabetical Index, Antibodies, Antibodies for Parkinson’s Disease Research, Cell Biology, Cell Signaling and Neuroscience,
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:200 using formic acid treated sections of Alzheimer′s Disease brain
  microarray: suitable
  western blot: 1:1,000 using extract of rat brain homogenate
species reactivity   rat, human
mol wt   antigen 19 kDa
form   buffered aqueous solution
storage temp.   −20°C
antibody form   IgG fraction of antiserum
antibody product type   primary antibodies
UniProt accession no.   P37840
Gene Information   human ... SNCA(6622)
rat ... Snca(29219)


General description

The synucleins are a family of soluble presynaptic proteins that are abundant in neurons and include α-synuclein, β-synuclein, and γ-synuclein. Human α-synuclein (also known as the non-amyloid component of plaques precursor protein or NACP) is a 140-amino acid polypeptide that is encoded by a gene on chromosome 4. It was originally isolated from plaques of Alzheimer’s disease (AD) brains as a 19 kDa protein precursor of the highly hydrophobic 35-amino acid peptide, nonamyloid component (NAC) of plaques. The NAC can self-aggregate into fibrils and induce aggregation of the β-amyloid peptide. α-Synuclein is highly abundant in presynaptic terminals, and is a major component of Lewy bodies (LBs). Pathogenic point mutations in the α-synuclein gene are linked to familial Parkinson’s disease (PD) in rare kindreds. However, most neurodegenerative disorders with LBs are associated with abnormal accumulation of wild-type, α-synuclein. α-Synuclein is expressed primarily in brain, but is also expressed in low levels in all tissues examined except liver.


Rabbit polyclonal anti-α-Synuclein antibody recognizes human and rat α-synuclein. Staining of α-synuclein in immunoblotting is specifically inhibited by the immunizing peptide


synthetic peptide corresponding to a sequence near the C-terminus of human α-synuclein (amino acids 111-132 with C-terminally added lysine) conjugated to KLH. This sequence is highly conserved (90% homology) in mouse and rat α-synuclein. This sequence has no homology with β- and γ-synuclein.


Rabbit polyclonal anti-α-Synuclein antibody is used to tag α-Synuclein for detection and quantitation by immunocytochemical and immunohistochemical (IHC) techniques, such as immunoblotting. It is also used as a probe to determine the presence and roles of α-Synuclein in plaques of Alzheimer’s disease (AD) brains.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
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Parkinson's Disease

Parkinson's disease (PD) is the second most common neurodegenerative disorder after Alzheimer's disease, affecting more than 6 million people worldwide. PD is a slowly progressing motor system neurod...
Carolyn L. Crankshaw
BioFiles v7 n2, 2011, 16–20
Keywords: Alzheimer Disease, Apoptosis, Chromatin immunoprecipitation, Clinical, Degradations, Dopamine agents, Gene expression, Parkinson Disease, Polymorphisms


Western Blot Protocol | Immunoblotting Protocol

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Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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