Key features and details
- Expression system: Escherichia coli
- Purity: > 95% SDS-PAGE
- Endotoxin level: < 1.000 Eu/µg
- Suitable for: SDS-PAGE, Functional Studies
Product nameRecombinant Human Alpha-synuclein protein aggregate (Type 2)
See all Alpha-synuclein proteins and peptides
Purity> 95 % SDS-PAGE.
ab218817 is purified by ion-exchange and 0.2µm filtered.
Endotoxin level< 1.000 Eu/µg
Expression systemEscherichia coli
Protein lengthFull length protein
SequenceMDVFMKGLSKAKEGVVAAAEKTKQGVAEAAGKTKEGVLYVGSKTKEGVVH GVATVAEKTKEQVTNVGGAVVTGVTAVAQKTVEGAGSIAAATGFVKKDQL GKNEEGAPQEGILEDMPVDPDNEAYEMPSEEGYQDYEPEA
Predicted molecular weight14 kDa
Amino acids1 to 140
DescriptionRecombinant Human Alpha-synuclein protein
- Thioflavin T, Fluorescent cell-permeable amyloid binding benzothiazole salt (ab120751)
- Anti-Alpha-synuclein antibody [MJFR1] (ab138501)
- Anti-Alpha-synuclein antibody [4D6] - BSA and Azide free (ab1903)
- Recombinant Human Alpha-synuclein protein monomer (Active) (ab218818)
- Recombinant Human Alpha-synuclein protein aggregate (Active) (ab218819)
- Anti-Alpha-synuclein antibody [LB 509] (ab27766)
Our Abpromise guarantee covers the use of ab218817 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
ab218817 is a protein aggregate which can be used as a control in various assays.
Concentration information loading...
Preparation and Storage
Stability and Storage
Shipped on Dry Ice. Store at -80°C. Avoid freeze / thaw cycle.
Constituent: 95% PBS
0.2µm filtered solution
- Alpha synuclein
- Alpha-synuclein, isoform NACP140
FunctionMay be involved in the regulation of dopamine release and transport. Induces fibrillization of microtubule-associated protein tau. Reduces neuronal responsiveness to various apoptotic stimuli, leading to a decreased caspase-3 activation.
Tissue specificityExpressed principally in brain but is also expressed in low concentrations in all tissues examined except in liver. Concentrated in presynaptic nerve terminals.
Involvement in diseaseGenetic alterations of SNCA resulting in aberrant polymerization into fibrils, are associated with several neurodegenerative diseases (synucleinopathies). SNCA fibrillar aggregates represent the major non A-beta component of Alzheimer disease amyloid plaque, and a major component of Lewy body inclusions. They are also found within Lewy body (LB)-like intraneuronal inclusions, glial inclusions and axonal spheroids in neurodegeneration with brain iron accumulation type 1.
Parkinson disease 1
Parkinson disease 4
Dementia Lewy body
Sequence similaritiesBelongs to the synuclein family.
DomainThe 'non A-beta component of Alzheimer disease amyloid plaque' domain (NAC domain) is involved in fibrils formation. The middle hydrophobic region forms the core of the filaments. The C-terminus may regulate aggregation and determine the diameter of the filaments.
modificationsPhosphorylated, predominantly on serine residues. Phosphorylation by CK1 appears to occur on residues distinct from the residue phosphorylated by other kinases. Phosphorylation of Ser-129 is selective and extensive in synucleinopathy lesions. In vitro, phosphorylation at Ser-129 promoted insoluble fibril formation. Phosphorylated on Tyr-125 by a PTK2B-dependent pathway upon osmotic stress.
Hallmark lesions of neurodegenerative synucleinopathies contain alpha-synuclein that is modified by nitration of tyrosine residues and possibly by dityrosine cross-linking to generated stable oligomers.
Ubiquitinated. The predominant conjugate is the diubiquitinated form.
Acetylation at Met-1 seems to be important for proper folding and native oligomeric structure.
Cellular localizationCytoplasm, cytosol. Membrane. Nucleus. Cell junction, synapse. Secreted. Membrane-bound in dopaminergic neurons.
- Information by UniProt
ThT emission curves show increased fluorescence (correlated to alpha-synucleinprotein aggregation) over time when 10 µM of active alpha-synuclein aggregate (ab218819) is combined with 100 µM of active alpha-synuclein monomer (ab218818) (light blue), as compared to when 100 µM of active alpha-synuclein monomer is combined with 10 µM of control alpha-synuclein aggregate (purple line), or 100 µM of control alpha-synuclein monomer (ab218816) is combined with 10 µM of control alpha-synuclein aggregate (ab218817) (dark blue). ThT ex = 450 nm, em = 485 nm. View protocol.
SDS-PAGE analysis of ab218817.
Immunohistochemical analysis of 4% formaldehyde fixed primary rat hippocampal neurons from Sprague-Dawley rat labeling lewy body inclusions formed when treated with active Alpha Synuclein Protein Aggregate at 4 µg/ml (D-F), but not when treated with ab218817 at 4 µg/ml (A-C).
Primary antibody: Mouse anti-pSer129 antibody at 1/1000 24 hours at 4°C. Secondary antibody: FITC Goat Anti-Mouse (green) at 1/700 for 1 hours at RT. Counterstain: Hoechst (blue) nuclear stain at 1/4000 for 1 hour at RT. Magnification: 20x.
TEM of ab218817.
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab218817 has been referenced in 1 publication.
- Uçar B et al. Spreading of Aggregated α-Synuclein in Sagittal Organotypic Mouse Brain Slices. Biomolecules 12:N/A (2022). PubMed: 35204664