RECOMBINANT
Anti-Amyloid Beta 1-42 Oligomer Antibody [1A2]

Rabbit Anti-Human Amyloid Beta 1-42 Oligomer Recombinant Monoclonal IgG

Catalog No. SMC-618

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Rabbit Anti-Amyloid Beta 1-42 Oligomer Antibody [1A2] used in ELISA (ELISA) on Human Purified protein (SMC-618)Rabbit Anti-Amyloid Beta 1-42 Oligomer Antibody [1A2] used in Dot Blot (DB) on Human Purified protein (SMC-618)Rabbit Anti-Amyloid Beta 1-42 Oligomer Antibody [1A2] used in Dot Blot (DB) on Human Purified protein (SMC-618)
Product Name Amyloid Beta 1-42 Oligomer Antibody
Description

Rabbit Anti-Human Amyloid Beta 1-42 Oligomer Recombinant Monoclonal IgG
Species Reactivity Human
Applications WB, ELISA
Antibody Dilution WB, ELISA (1:1000 - 1:4000); optimal dilutions for assays should be determined by the user.
Host Species Rabbit
Immunogen Species Human
Immunogen Amyloid beta 1-42 oligomers (StressMarq Catalog# SPR-488)
Concentration 1mg/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

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

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

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 

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 

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

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

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

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

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
Shipping Temperature Blue Ice or 4ºC
Purification Protein A purified
Clonality Recombinant Monoclonal
Clone Number 1A2
Isotype IgG
Specificity Amyloid Beta 1-42 oligomers
Cite This Product Rabbit Anti-Human Amyloid Beta 1-42 Oligomer Recombinant Monoclonal (StressMarq Biosciences, Victoria BC, Cat# SMC-618)
Certificate of Analysis A 1:4000 dilution of SMC-618 was sufficient for detection of 2ng of AB 1-42 oligomers by dot blot analysis with goat-anti-rabbit:HRP as the secondary and by self-sandwich ELISA analysis (capture at 1 ug/mL, detection at 0.2 ug/mL).

Biological Description

Alternative Names Abeta Oligomers Antibody, APP Antibody
Research Areas Alzheimer's Disease, Amyloid, Neurodegeneration, Neuroscience
Cellular Localization Membrane (Secreted)
Gene ID 351 (APP)
Swiss Prot P05067
Scientific Background Our amyloid beta oligomer antibody has been tested for specificity against AB 1-42 aggregates, with higher specificity to oligomers demonstrated. In the brain, amyloid beta peptide (Aβ) is generated by protease cleavage of amyloid precursor protein (APP), which aggregates into oligomers, protofibrils, fibrils and ultimately plaques in neurodegenerative diseases. The accumulation of Aβ plaques in the brain is considered a hallmark of Alzheimer’s disease (AD), and most of the drugs tested for AD in the past 20 years have targeted amyloid beta accumulation (1). The immunogen used was our Amyloid Beta 1-42 (Aβ42) Oligomers are generated from Amyloid Beta Peptide 1-42 pre-treated with 1,1,1,3,3,3-Hexafluoro-2-propanol (HFIP) as previously published (2,3).
References 1. Panza et al. 2019. Nat Rev Neurol. 15:73-88 https://doi.org/10.1038/s41582-018-0116-6
2. Stine et al. 2003. JBC. 278(13):11612-22. doi: 10.1074/jbc.M210207200
3. Ahmed et al. 2010. Nature Structural & Molecular Biology. 17(5):561 doi: 10.1038/nsmb.1799

Product Images

<p>Western blot analysis comparing detection of StressMarq’s Amyloid Beta 1-42 constructs (SPR-485 = amyloid beta 1-42 peptide; SPR-488 = amyloid beta 1-42 oligomers; SPR-487 = amyloid beta 1-42 pre-formed fibrils; SPR-492 = amyloid beta pyroglutamate 3-42 pre-formed fibrils). Block: 5% skim milk. Primary Antibodies: Rabbit Anti-Amyloid Beta 1-42 oligomer monoclonal antibody (SMC-618, clone 1A2) & Mouse Anti-Amyloid Beta 1-16 monoclonal antibody (Biolegend 803001, clone 6E10), both at 1:1000 for 1/2 hour at RT. Secondary Antibodies: Goat anti-rabbit IgG:HRP or anti-mouse IgG:HRP at 1:4000 for 1/2 hour at RT. Color Development: Chemiluminescent for HRP (Moss) for 1 min in RT. Exposed 1 second.</p>

Western blot analysis comparing detection of StressMarq’s Amyloid Beta 1-42 constructs (SPR-485 = amyloid beta 1-42 peptide; SPR-488 = amyloid beta 1-42 oligomers; SPR-487 = amyloid beta 1-42 pre-formed fibrils; SPR-492 = amyloid beta pyroglutamate 3-42 pre-formed fibrils). Block: 5% skim milk. Primary Antibodies: Rabbit Anti-Amyloid Beta 1-42 oligomer monoclonal antibody (SMC-618, clone 1A2) & Mouse Anti-Amyloid Beta 1-16 monoclonal antibody (Biolegend 803001, clone 6E10), both at 1:1000 for 1/2 hour at RT. Secondary Antibodies: Goat anti-rabbit IgG:HRP or anti-mouse IgG:HRP at 1:4000 for 1/2 hour at RT. Color Development: Chemiluminescent for HRP (Moss) for 1 min in RT. Exposed 1 second.

<p>Sandwich ELISA analysis comparing detection of Amyloid Beta constructs. The range tested for each construct was 0 to 2000 pg/mL, and the standard curve was prepared using amyloid beta 1-42 oligomers (SPR-488). Within this range, no cross-reactivity with monomeric peptide & APP 751 was observed.</p>

Sandwich ELISA analysis comparing detection of Amyloid Beta constructs. The range tested for each construct was 0 to 2000 pg/mL, and the standard curve was prepared using amyloid beta 1-42 oligomers (SPR-488). Within this range, no cross-reactivity with monomeric peptide & APP 751 was observed.

<p>Dot blot analysis comparing detection of StressMarq’s amyloid beta 1-42 constructs, alpha synuclein wildtype constructs, and tau constructs. Of note is that SMC-618 does not bind APP 751 or other protein constructs such as alpha synuclein and tau. Block: 5% skim milk. Primary Antibodies: Anti-Amyloid Beta 1-42 oligomer monoclonal antibody (SMC-618, clone 1A2), Anti-Amyloid Beta 1-16 monoclonal antibody (Biolegend 803001, clone 6E10), Anti-Alpha Synuclein polyclonal antibody (SPC-800), and Anti-Tau polyclonal antibody (SPC-801), all incubated for 1/2 hour at RT. Secondary Antibodies: Goat anti-rabbit IgG:HRP or anti-mouse IgG:HRP at 1:4000 for 1/2 hour at RT. Color Development: Chemiluminescent for HRP (Moss) for 1 min in RT. Exposed 1 second.</p>

Dot blot analysis comparing detection of StressMarq’s amyloid beta 1-42 constructs, alpha synuclein wildtype constructs, and tau constructs. Of note is that SMC-618 does not bind APP 751 or other protein constructs such as alpha synuclein and tau. Block: 5% skim milk. Primary Antibodies: Anti-Amyloid Beta 1-42 oligomer monoclonal antibody (SMC-618, clone 1A2), Anti-Amyloid Beta 1-16 monoclonal antibody (Biolegend 803001, clone 6E10), Anti-Alpha Synuclein polyclonal antibody (SPC-800), and Anti-Tau polyclonal antibody (SPC-801), all incubated for 1/2 hour at RT. Secondary Antibodies: Goat anti-rabbit IgG:HRP or anti-mouse IgG:HRP at 1:4000 for 1/2 hour at RT. Color Development: Chemiluminescent for HRP (Moss) for 1 min in RT. Exposed 1 second.

<p>Dot blot analysis comparing detection of StressMarq’s amyloid beta constructs. Concentrations tested are 20 & 2ng, respectively. Block: 5% skim milk. Primary Antibodies: Rabbit Anti-Amyloid Beta 1-42 oligomer monoclonal antibody (SMC-618, clone 1A2) & Mouse Anti-Amyloid Beta 1-16 monoclonal antibody (Biolegend 803001, clone 6E10), both at 1:1000 for 1/2 hour at RT. Secondary Antibodies: Goat anti-rabbit IgG:HRP or anti-mouse IgG:HRP at 1:4000 for 1/2 hour at RT. Color Development: Chemiluminescent for HRP (Moss) for 1 min in RT. Exposed 1 second.</p>

Dot blot analysis comparing detection of StressMarq’s amyloid beta constructs. Concentrations tested are 20 & 2ng, respectively. Block: 5% skim milk. Primary Antibodies: Rabbit Anti-Amyloid Beta 1-42 oligomer monoclonal antibody (SMC-618, clone 1A2) & Mouse Anti-Amyloid Beta 1-16 monoclonal antibody (Biolegend 803001, clone 6E10), both at 1:1000 for 1/2 hour at RT. Secondary Antibodies: Goat anti-rabbit IgG:HRP or anti-mouse IgG:HRP at 1:4000 for 1/2 hour at RT. Color Development: Chemiluminescent for HRP (Moss) for 1 min in RT. Exposed 1 second.

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