Anti-Alpha Synuclein Antibody (pSer129) [J18]

Rabbit Anti-Human Alpha Synuclein (pSer129) Monoclonal IgG

Catalog No. SMC-600

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Species Reactivity Hu, Ms
Applications WB IHC ICC/IF FCM IP
SKU: SMC-600 Categories: ,

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SMC-600_Alpha-Synuclein-pSer129_Antibody_J18_IHC_Mouse_Brain_1.png
Rabbit Anti-Alpha Synuclein Antibody (pSer129) [J18] used in Immunocytochemistry/Immunofluorescence (ICC/IF) on Human iPSC-derived neurons (SMC-600)Rabbit Anti-Alpha Synuclein Antibody (pSer129) [J18] used in Immunohistochemistry (IHC) on Mouse Brain (SMC-600)Rabbit Anti-Alpha Synuclein Antibody (pSer129) [J18] used in Immunocytochemistry/Immunofluorescence (ICC/IF) on Human iPSC-derived neurons (SMC-600)Rabbit Anti-Alpha Synuclein Antibody (pSer129) [J18] used in Dot Blot (DB) on alpha synuclein peptide (SMC-600)Rabbit Anti-Alpha Synuclein Antibody (pSer129) [J18] used in Western Blot (WB) on Human Alpha Synuclein (SMC-600)Rabbit Anti-Alpha Synuclein Antibody (pSer129) [J18] used in Western Blot (WB) on Mouse Brain (SMC-600)
Product Name Alpha Synuclein Antibody (pSer129)
Description

Rabbit Anti-Human Alpha Synuclein (pSer129) Monoclonal IgG
Species Reactivity Human, Mouse
Applications ELISA, WB, ICC, IHC
Antibody Dilution WB (1:500); optimal dilutions for assays should be determined by the user.
Host Species Rabbit
Immunogen Species Human
Immunogen Human alpha synuclein AA 124-134: AYEMP-pS-EEGYQ-Cys
Concentration 1 mg/ml
Conjugates APC, ATTO 390, ATTO 488, ATTO 594, Biotin, FITC, HRP, PerCP, RPE, Unconjugated
Dylight 488
Overview:

  • High fluorescence yield
  • High photostability
  • Less pH-sensitive
  • Excellent batch-to-batch reproducibility
  • Stringently QC tested
  • Molecular weight: 1011 g/mol

Dylight 488 Datasheet

 Dylight 488 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 493 nm

λem = 518 nm

εmax = 7.0×104

Laser = 488 nm

 

APC/Cy7
Overview:

  • High quantum yield
  • Excellent batch-to-batch reproducibility
  • Stringently QC tested

APC-Cy7 Datasheet

 

 ACP-Cy7 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 652 nm

λem = 790 nm

Laser = 594 or 633 nm

 

 

  Dylight 350
Overview:

  • High fluorescence intensity
  • High photostability
  • Less pH-sensitive
  • Excellent solubility in water
  • Stringently QC tested
  • Excellent batch-to-batch reproducibility
  • Molecular weight: 874 g/mol

Dylight 350 Datasheet

 Dylight 350 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 353 nm

λem = 432 nm

εmax = 1.5×104

 

 

  Dylight 405
Overview:

  • High fluorescence intensity
  • High photostability
  • Less pH-sensitive
  • Excellent batch-to-batch reproducibility
  • Stringently QC tested
  • Molecular weight: 793 g/mol

Dylight 405 Datasheet

 Dylight 405 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 400 nm

λem = 420 nm

εmax = 3.0×104

Laser = 405 nm

 

Dylight 594
Overview:

  • High fluorescence yield
  • High photostability
  • Less pH-sensitive
  • Excellent batch-to-batch reproducibility
  • Stringently QC tested
  • Molecular weight: 1078 g/mol

Dylight 594 Datasheet

 Dylight 594 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 593 nm

λem = 618 nm

εmax = 8.0×104

Laser = 526 nm

 

 Dylight 633
Overview:

  • High fluorescence yield
  • High photostability
  • Less pH-sensitive
  • Excellent batch-to-batch reproducibility
  • Stringently QC tested
  • Molecular weight: 1066 g/mol

Dylight 633 Datasheet

 Dylight 633 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 638 nm

λem = 658 nm

εmax = 1.7×105

Laser = 633 nm

 

 PerCP 
Overview:

  • Peridinin-Chlorophyll-Protein Complex
  • Small phycobiliprotein
  • Isolated from red algae
  • Large stokes shift (195 nm)
  • Molecular Weight: 35 kDa
  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

PerCP Datasheet

  PerCP Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 482 nm

λem = 677 nm

εmax = 1.96 x 106

Laser = 488 nm

 

 PE/ATTO 594
PE/ATTO 594 is a tandem conjugate, where PE is excited at 535 nm and transfers energy to ATTO 594 via FRET (fluorescence resonance energy transfer), which emits at 627 nm.
Overview:

  • High fluorescence yield
  • High photostability
  • Very hydrophilic
  • Excellent solubility in water
  • Very little aggregation

PE/ATTO 594 Datasheet

 PE-ATTO 594 Fluorophore Conjugate Excitation and Emission Spectra Optical Properties:

λex = 535 nm

λem = 627 nm

Laser = 488 to 561 nm

 

  FITC (Fluorescein)
Overview:

  • Excellent fluorescence quantum yield
  • High rate of photobleaching
  • Good solubility in water
  • Broad emission spectrum
  • pH dependent spectra
  • Molecular formula: C20H12O5
  • Molar mass: 332.3 g/mol
  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

FITC-Fluorescent-conjugate

 FITC Fluorescein Fluorophore Excitation and Emission Spectra Optical Properties:

λex = 494 nm

λem = 520 nm

εmax = 7.3×104

Φf = 0.92

τfl = 5.0 ns

Brightness = 67.2

Laser = 488 nm

Filter set = FITC

 

 ATTO 700
Overview:

  • High fluorescence yield
  • Excellent thermal and photostability
  • Quenched by electron donors
  • Very hydrophilic
  • Good solubility in polar solvents
  • Zwitterionic dye
  • Molar Mass: 575 g/mol

ATTO 700 Datasheet

  ATTO 700 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 700 nm

λem = 719 nm

εmax = 1.25×105

Φf = 0.25

τfl = 1.6 ns

Brightness = 31.3

Laser = 676 nm

Filter set = Cy®5.5

 

 ATTO 680
Overview:

  • High fluorescence yield
  • Excellent thermal and photostability
  • Quenched by electron donors
  • Very hydrophilic
  • Good solubility in polar solvents
  • Zwitterionic dye
  • Molar Mass: 631 g/mol

ATTO 680 Datasheet

  ATTO 680 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 680 nm

λem = 700 nm

εmax = 1.25×105

Φf = 0.30

τfl = 1.7 ns

Brightness = 37.5

Laser = 633 – 676 nm

Filter set = Cy®5.5

 

 ATTO 655
Overview:

  • High fluorescence yield
  • High thermal and photostability
  • Excellent ozone resistance
  • Quenched by electron donors
  • Very hydrophilic
  • Good solubility in polar solvents
  • Zwitterionic dye
  • Molar Mass: 634 g/mol

ATTO 655 Datasheet

 ATTO 655 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 663 nm

λem = 684 nm

εmax = 1.25×105

Φf = 0.30

τfl = 1.8 ns

Brightness = 37.5

Laser = 633 – 647 nm

Filter set = Cy®5

 

 ATTO 633
Overview:

  • High fluorescence yield
  • High thermal and photostability
  • Moderately hydrophilic
  • Good solubility in polar solvents
  • Stable at pH 4 – 11
  • Cationic dye, perchlorate salt
  • Molar Mass: 652.2 g/mol

ATTO 633 Datasheet

 ATTO 633 Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 629 nm

λem = 657 nm

εmax = 1.3×105

Φf = 0.64

τfl = 3.2 ns

Brightness = 83.2

Laser = 633 nm

Filter set = Cy®5

 

 ATTO 594
Overview:

  • High fluorescence yield
  • High photostability
  • Very hydrophilic
  • Excellent solubility in water
  • Very little aggregation
  • New dye with net charge of -1
  • Molar Mass: 1137 g/mol
  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

ATTO 594 Datasheet

  ATTO 594 Fluorophore Excitation and Emission Spectrum Optical Properties:

λex = 601 nm

λem = 627 nm

εmax = 1.2×105

Φf = 0.85

τfl = 3.5 ns

Brightness = 102

Laser = 594 nm

Filter set = Texas Red®

 

 ATTO 565
Overview:

  • High fluorescence yield
  • High thermal and photostability
  • Good solubility in polar solvents
  • Excellent solubility in water
  • Very little aggregation
  • Rhodamine dye derivative
  • Molar Mass: 611 g/mol

ATTO 565 Datasheet

  ATTO 565 Fluorophore Excitation and Emission Spectra Optical Properties:

λex = 563 nm

λem = 592 nm

εmax = 1.2×105

Φf = 0.9

τfl = 3.4 n

Brightness = 10

Laser = 532 nm

Filter set = TRITC

 

  ATTO 488
Overview:

  • High fluorescence yield
  • High photostability
  • Very hydrophilic
  • Excellent solubility in water
  • Very little aggregation
  • New dye with net charge of -1
  • Molar Mass: 804 g/mol
  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications. 

ATTO 488 Datasheet

   ATTO 488 Fluorophore Excitation and Emission Spectra Optical Properties:

λex = 501 nm

λem = 523 nm

εmax = 9.0×104

Φf = 0.80

τfl = 4.1 ns

Brightness = 72

Laser = 488 nm

Filter set = FITC

 

  ATTO 390
Overview:

  • High fluorescence yield
  • Large Stokes-shift (89 nm)
  • Good photostability
  • Moderately hydrophilic
  • Good solubility in polar solvents
  • Coumarin derivate, uncharged
  • Low molar mass: 343.42 g/mol
  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications. 

ATTO 390 Datasheet

 ATTO 390 Fluorescent Dye Excitation and Emission Spectra Optical Properties:

λex = 390 nm

λem = 479 nm

εmax = 2.4×104

Φf = 0.90

τfl = 5.0 ns

Brightness = 21.6

Laser = 365 or 405 nm

 

APC (Allophycocyanin)
Overview:

  • High quantum yield
  • Large phycobiliprotein
  • 6 chromophores per molecule
  • Isolated from red algae
  • Molecular Weight: 105 kDa
  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

APC Datasheet

  APC Fluorophore Absorption and Emission Spectrum Optical Properties:

λex = 650 nm

λem = 660 nm

εmax = 7.0×105

Φf = 0.68

Brightness = 476

Laser = 594 or 633 nm

Filter set = Cy®5

 

Streptavidin

Properties:

  • Homo-tetrameric protein purified from Streptomyces avidinii which binds four biotin molecules with extremely high affinity
  • Molecular weight: 53 kDa
  • Formula: C10H16N2O3S
  • Applications: Western blot, immunohistochemistry, and ELISA

Streptavidin Datasheet

BiotinBiotin Conjugate Structure

Properties:

  • Binds tetrameric avidin proteins including Streptavidin and neuravidin with very high affinity
  • Molar mass: 244.31 g/mol
  • Formula: C10H16N2O3S
  • Applications: Western blot, immunohistochemistry, and ELISA*

*The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

Biotin Datasheet

HRP (Horseradish peroxidase)

Properties:

  • Enzymatic activity is used to amplify weak signals and increase visibility of a target
  • Readily combines with hydrogen peroxide (H2O2) to form HRP-H2O2 complex which can oxidize various hydrogen donors
  • Catalyzes the conversion of:
    • Chromogenic substrates (e.g. TMB, DAB, ABTS) into coloured products
    • Chemiluminescent substrates (e.g. luminol and isoluminol) into light emitting products via enhanced chemiluminescence (ECL)
    • Fluorogenic substrates (e.g. tyramine, homovanillic acid, and 4-hydroxyphenyl acetic acid) into fluorescent products
  • High turnover rate enables rapid generation of a strong signal
  • 44 kDa glycoprotein
  • Extinction coefficient: 100 (403 nm)
  • Applications: Western blot, immunohistochemistry, and ELISA*
    • *The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

HRP Datasheet

AP (Alkaline Phosphatase)

Properties:

  • Broad enzymatic activity for phosphate esters of alcohols, amines, pyrophosphate, and phenols
  • Commonly used to dephosphorylate the 5’-termini of DNA and RNA to prevent self-ligation
  • Catalyzes the conversion of:
    • Chromogenic substrates (e.g. pNPP, naphthol AS-TR phosphate, BCIP) into coloured products
    • Fluorogenic substrates (e.g. 4-methylumbelliferyl phosphate) into fluorescent products
  • Molecular weight: 140 kDa
  • Applications: Western blot, immunohistochemistry, and ELISA

AP Datasheet

  R-PE (R-Phycoerythrin)
Overview:

  • Broad excitation spectrum
  • High quantum yield
  • Photostable
  • Member of the phycobiliprotein family
  • Isolated from red algae
  • Excellent solubility in water
  • Molecular Weight: 250 kDa

 

  • Applications: The listed applications provide a general overview of potential uses for conjugated antibodies. However, they do not guarantee that every antibody-conjugate combination has been tested or validated for these specific applications.

R-PE Datasheet

  R-PE Fluorophore Excitation and Emission Spectra Optical Properties:

λex = 565 nm

λem = 575 nm

εmax = 2.0×106

Φf = 0.84

Brightness = 1.68 x 103

Laser = 488 to 561 nm

Filter set = TRITC

 
Field of Use Not for use in humans. Not for use in diagnostics or therapeutics. For in vitro research use only.

Properties

Storage Buffer PBS pH 7.4, 50% glycerol, 0.09% Sodium azide *Storage buffer may change when conjugated
Storage Temperature -20ºC, Conjugated antibodies should be stored according to the product label
Shipping Temperature Blue Ice or 4ºC
Purification Affinity Purified
Clonality Monoclonal
Clone Number J18
Isotype IgG
Specificity Binds to phosphorylated serine 129 on alpha synuclein. Does not detect unphosphorylated serine 129 alpha synuclein
Cite This Product Rabbit Anti-Human Alpha Synuclein pSer129 Monoclonal (StressMarq Biosciences, Victoria BC, Cat# SMC-600)
Certificate of Analysis A 1:500 dilution of SMC-600 was sufficient for detection of Alpha Synuclein pSer129 in 10 µg of Mouse Brain by ECL immunoblot analysis using Goat Anti-Rabbit IgG:HRP as the secondary antibody.

Biological Description

Alternative Names Alpha Synuclein, α-Synuclein, SNCA, alphaSYN, NACP, Non-A beta component of AD amyloid, Non-A4 component of amyloid precursor, Phosphorylated alpha synuclein, Phospho-alpha Synuclein (S129), Alpha-synuclein (phospho S129), Alpha Synuclein (phospho Ser129), Alpha-Synuclein Phospho Ser129, phospho-α-Synuclein (Ser129), Alpha Synuclein phospho Serine 129, Alpha Synuclein phospho Ser 129, Alpha Synuclein pSerine 129, Alpha Synuclein pSer 129, Alpha Synuclein phosphoSer 129, isoform NACP140, PARK1, PARK 1, PARK4, PARK 4, Parkinson disease (autosomal dominant, Lewy body) 4, Parkinson disease familial 1, SYN, Synuclein alpha, Synuclein alpha 140, Synuclein, alpha (non A4 component of amyloid precursor), SYUA_HUMAN
Research Areas Alzheimer's Disease, Neurodegeneration, Neuroscience, Parkinson's Disease, Synuclein, Tangles & Tau, Multiple System Atrophy
Cellular Localization Cell Junction, Cytoplasm, Cytosol, Membrane, Nucleus, Synapse
Accession Number NP_000336.1
Gene ID 6622
Swiss Prot P37840
Scientific Background Alpha-synuclein (SNCA) is a neuronal protein predominantly expressed in the brain, where it is enriched at presynaptic terminals and plays a key role in synaptic function (1). It is also highly expressed in mitochondria-rich regions such as the olfactory bulb, hippocampus, striatum, and thalamus, suggesting a role in mitochondrial dynamics and neuronal energy metabolism (2). Functionally, alpha-synuclein interacts with tubulin (3), indicating a potential role as a microtubule-associated protein involved in cytoskeletal organization and intracellular transport. It is essential for cognitive development, with SNCA inactivation linked to impaired spatial learning and working memory (4).

Pathologically, SNCA aggregates are a major non-Aβ component of amyloid plaques in Alzheimer’s disease and a defining feature of Lewy body inclusions in Parkinson’s disease (PD). PD is characterized by the progressive accumulation of alpha-synuclein and ubiquitin-positive inclusions in vulnerable neurons, contributing to neurodegeneration (5, 6).

Critically, phosphorylation of alpha-synuclein at serine 129 (pSer129) is a key post-translational modification associated with disease pathology. Approximately 90% of alpha-synuclein found in Lewy bodies is phosphorylated at Ser129, compared to only a small fraction in the healthy brain (7, 8). This modification is widely used as a biomarker for pathological alpha-synuclein and is a focal point in therapeutic and diagnostic research targeting synucleinopathies.
References 1. “Genetics Home Reference: SNCA”. US National Library of Medicine. (2013).
2. Zhang L., et al. (2008) Brain Res. 1244: 40-52.
3. Alim M.A., et al. (2002) J Biol Chem. 277(3): 2112-2117.
4. Kokhan V.S., Afanasyeva M.A., Van’kin G. (2012) Behav. Brain. Res. 231(1): 226-230.
5. Spillantini M.G., et al. (1997) Nature. 388(6645): 839-840.
6. Mezey E., et al. (1998) Nat Med. 4(7): 755-757.
7. Fujiwara H., et al. (2002) Nat Cell Biol. 4(2):160-4.
8. Anderson J.P., et al. (2006) J Biol Chem. 281(40):29739-52.

Product Images

<p>Immunohistochemistry analysis using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Tissue: Brain. Species: Mouse. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:10000. Secondary Antibody: anti-rabbit HRP. C57/BL6 mice were injected with 5 ug sonicated mouse recombinant alpha synuclein PFFs (SPR-324) at 8 weeks of age. Mice were unilaterally injected in the dorsal striatum (bregma AP + 0.2 mm, L +/1 2.0 mm, V – 3.0 mm) and sacrificed 30 days post-injection. (A) contralateral cortex. (B) ipsilateral cortex. (C) contralateral striatum. (D) ipsilateral striatum. Courtesy of: Porsolt.</p>

Immunohistochemistry analysis using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Tissue: Brain. Species: Mouse. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:10000. Secondary Antibody: anti-rabbit HRP. C57/BL6 mice were injected with 5 ug sonicated mouse recombinant alpha synuclein PFFs (SPR-324) at 8 weeks of age. Mice were unilaterally injected in the dorsal striatum (bregma AP + 0.2 mm, L +/1 2.0 mm, V – 3.0 mm) and sacrificed 30 days post-injection. (A) contralateral cortex. (B) ipsilateral cortex. (C) contralateral striatum. (D) ipsilateral striatum. Courtesy of: Porsolt.

<p>Immunohistochemistry analysis using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Tissue: Brain. Species: Mouse. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:10000. Secondary Antibody: anti-rabbit HRP. C57/BL6 mice were injected with sonicated recombinant mouse alpha synuclein monomers or fibrils at 8 weeks of age. Mice were unilaterally injected in the dorsal striatum (bregma AP + 0.2 mm, L +/1 2.0 mm, V – 3.0 mm) and sacrificed 30 days post-injection. (A) 1.25 uL mouse alpha synuclein monomers (SPR-323). (B) 2.5 uL mouse alpha synuclein monomers (SPR-323). (C) 2.5 ug alpha synuclein PFFs (SPR-324). (D) 5 ug alpha synuclein PFFs (SPR-324). Inset: PBS (negative control). Courtesy of: Porsolt.</p>

Immunohistochemistry analysis using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Tissue: Brain. Species: Mouse. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:10000. Secondary Antibody: anti-rabbit HRP. C57/BL6 mice were injected with sonicated recombinant mouse alpha synuclein monomers or fibrils at 8 weeks of age. Mice were unilaterally injected in the dorsal striatum (bregma AP + 0.2 mm, L +/1 2.0 mm, V – 3.0 mm) and sacrificed 30 days post-injection. (A) 1.25 uL mouse alpha synuclein monomers (SPR-323). (B) 2.5 uL mouse alpha synuclein monomers (SPR-323). (C) 2.5 ug alpha synuclein PFFs (SPR-324). (D) 5 ug alpha synuclein PFFs (SPR-324). Inset: PBS (negative control). Courtesy of: Porsolt.

<p>Immunocytochemistry / Immunofluorescence analysis of human iPSC-derived neurons (Stem Cell Catalog Code ASE-9321KF) treated with 2.5µg ATTO 594 labeled type I alpha-synuclein pre-formed fibrils (SPR-322-A594) for up to 14 days. Cells seeded at 8k cells per well. Green: mouse anti-alpha synuclein (pSer129) monoclonal antibody (SMC-600) 1:5000; Red: alpha-synuclein PFFs (SPR-322-A594); Pink: actin; Blue: Hoechst / DNA.</p>

Immunocytochemistry / Immunofluorescence analysis of human iPSC-derived neurons (Stem Cell Catalog Code ASE-9321KF) treated with 2.5µg ATTO 594 labeled type I alpha-synuclein pre-formed fibrils (SPR-322-A594) for up to 14 days. Cells seeded at 8k cells per well. Green: mouse anti-alpha synuclein (pSer129) monoclonal antibody (SMC-600) 1:5000; Red: alpha-synuclein PFFs (SPR-322-A594); Pink: actin; Blue: Hoechst / DNA.

<p>Western Blot analysis of Human Alpha Synuclein showing detection of Alpha Synuclein pSer129 protein using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Lane 1: MW ladder. Lane 2: 0.5 ug human alpha synuclein monomer (SPR-321). Lane 3: 2 ug human alpha synuclein monomer (SPR-321). Lane 4: 0.5 ug human alpha synuclein PFFs (SPR-322). Lane 5: 2 ug human alpha synuclein PFFs (SPR-322). Lane 6: 15 ug human Parkinson’s Disease brain lysate.. Block: 5% BSA in TBST. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:500 for 2 hours at RT with shaking. Secondary Antibody: Goat anti-rabbit IgG:HRP at 1:4000 for 1 hour at RT with shaking. Color Development: Chemiluminescent for HRP (Moss) for 5 min in RT.</p>

Western Blot analysis of Human Alpha Synuclein showing detection of Alpha Synuclein pSer129 protein using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Lane 1: MW ladder. Lane 2: 0.5 ug human alpha synuclein monomer (SPR-321). Lane 3: 2 ug human alpha synuclein monomer (SPR-321). Lane 4: 0.5 ug human alpha synuclein PFFs (SPR-322). Lane 5: 2 ug human alpha synuclein PFFs (SPR-322). Lane 6: 15 ug human Parkinson’s Disease brain lysate.. Block: 5% BSA in TBST. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:500 for 2 hours at RT with shaking. Secondary Antibody: Goat anti-rabbit IgG:HRP at 1:4000 for 1 hour at RT with shaking. Color Development: Chemiluminescent for HRP (Moss) for 5 min in RT.

<p>Dot Blot analysis using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Tissue: alpha synuclein peptide. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:500 for 2 hours at RT with shaking . Secondary Antibody: Goat anti-rabbit IgG:HRP at 1:4000 for 1 hour at RT with shaking . Phospho peptide sequence: AYEMP-pS-EEGYQ. Non-phospho peptide sequence: AYEMPSEEGYQ. This sequence is the same for human, mouse, and rat.</p>

Dot Blot analysis using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Tissue: alpha synuclein peptide. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:500 for 2 hours at RT with shaking . Secondary Antibody: Goat anti-rabbit IgG:HRP at 1:4000 for 1 hour at RT with shaking . Phospho peptide sequence: AYEMP-pS-EEGYQ. Non-phospho peptide sequence: AYEMPSEEGYQ. This sequence is the same for human, mouse, and rat.

<p>Western Blot analysis of Mouse Brain showing detection of Alpha Synuclein pSer129 protein using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Lane 1: MW ladder. Lane 2: Mouse brain. Load: 15 ug. Block: 5% BSA in TBST. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:500 for 2 hours at RT with shaking. Secondary Antibody: Goat anti-rabbit IgG:HRP at 1:4000 for 1 hour at RT with shaking. Color Development: Chemiluminescent for HRP (Moss) for 5 min in RT.</p>

Western Blot analysis of Mouse Brain showing detection of Alpha Synuclein pSer129 protein using Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody, Clone J18 (SMC-600). Lane 1: MW ladder. Lane 2: Mouse brain. Load: 15 ug. Block: 5% BSA in TBST. Primary Antibody: Rabbit Anti-Alpha Synuclein pSer129 Monoclonal Antibody (SMC-600) at 1:500 for 2 hours at RT with shaking. Secondary Antibody: Goat anti-rabbit IgG:HRP at 1:4000 for 1 hour at RT with shaking. Color Development: Chemiluminescent for HRP (Moss) for 5 min in RT.

<p>Immunocytochemistry/Immunofluorescence analysis using Rabbit Anti-Alpha Synuclein (pSer129) Monoclonal Antibody, Clone J18 (SMC-600). Tissue: iPSC-derived neurons. Species: Human. Primary Antibody: Rabbit Anti-Alpha Synuclein (pSer129) Monoclonal Antibody (SMC-600) at 1:1000 for O/N at 4°C. Secondary Antibody: Anti-Rabbit: A488 at 1:1000 for 1 hour at RT. Magnification: 40X. Nuclear stain: Hoechst- 20 min, RT (blue). Actin stain: Phalloidin-647- 20 min, RT (magenta). 4K cells per well. iPSC neurons: Applied StemCell Catalog # ASE-9321K. A) negative control; no fibrils added to well. B) 7 days after addition of active recombinant human pre-formed fibrils (Type 1). StressMarq catalog # SPR-322. Sonicated before use, 2.5 ug per well.</p>

Immunocytochemistry/Immunofluorescence analysis using Rabbit Anti-Alpha Synuclein (pSer129) Monoclonal Antibody, Clone J18 (SMC-600). Tissue: iPSC-derived neurons. Species: Human. Primary Antibody: Rabbit Anti-Alpha Synuclein (pSer129) Monoclonal Antibody (SMC-600) at 1:1000 for O/N at 4°C. Secondary Antibody: Anti-Rabbit: A488 at 1:1000 for 1 hour at RT. Magnification: 40X. Nuclear stain: Hoechst- 20 min, RT (blue). Actin stain: Phalloidin-647- 20 min, RT (magenta). 4K cells per well. iPSC neurons: Applied StemCell Catalog # ASE-9321K. A) negative control; no fibrils added to well. B) 7 days after addition of active recombinant human pre-formed fibrils (Type 1). StressMarq catalog # SPR-322. Sonicated before use, 2.5 ug per well.

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