2. Signaling Pathways
  3. Neuronal Signaling
  4. Amyloid-β

Amyloid-β

β-amyloid peptide; Aβ; Abeta

Amyloid-β

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Amyloid-β (Aβ) denotes peptides of 36–43 amino acids that are crucially involved in Alzheimer's disease as the main component of theamyloid plaques found in the brains of Alzheimer patients. The peptides result from the amyloid precursor protein (APP), which is being cut by certain enzymes to yield Aβ. Amyloid-β molecules can aggregate to form flexible soluble oligomers which may exist in several forms. Amyloid-β peptide is due to overproduction of Aβ and/or the failure of clearance mechanisms. Amyloid-β self-aggregates into oligomers, which can be of various sizes, and forms diffuse and neuritic plaques in the parenchyma and blood vessels. Amyloid-β oligomers and plaques are potent synaptotoxins, block proteasome function, inhibit mitochondrial activity, alter intracellular Ca2+levels and stimulate inflammatory processes. Loss of the normal physiological functions of Aβ is also thought to contribute to neuronal dysfunction.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-D3192
    CDy11
    		Ligand
    CDy11 is a fluorescent probe and amyloid-binding dye (λex=590 nm; λem=612 nm), with a Ka of 29 μM for Pseudomonas aeruginosa Fap. CDy11 specifically recognizes amyloid fibrils in bacterial biofilms and exhibits significantly enhanced fluorescence upon binding to the target. CDy11 shows no staining effect on amyloid-deficient mutant strains, planktonic cells or protein monomers. CDy11 supports in vivo imaging of Pseudomonas aeruginosa biofilms in mouse implant and corneal infection models. CDy11 is widely used in studies of Staphylococcus aureus biofilm infections, dental caries, and Pseudomonas aeruginosa-associated implant and corneal infections.
    CDy11
  • HY-169196
    D-687
    		Inhibitor
    D-687 is an inhibitor of Tau and Aβ. D-687 can reverse Aβ1–42-induced toxicity in SH-SH5Y cells and has significant neuroprotective properties.
    D-687
  • HY-152031
    Glutaminyl Cyclase Inhibitor 5
    		Inhibitor
    Glutaminyl Cyclase Inhibitor 5 (Compound 71) is a potent and selective human glutaminyl cyclase (hQC) inhibitor with an IC50 of 3.2 nM.
    Glutaminyl Cyclase Inhibitor 5
  • HY-P1363S
    β-Amyloid-15N (1-42), human TFA
    β-Amyloid-15N (1-42), human (TFA) is the 15N-labledβ-Amyloid (1-42) (TFA). β-Amyloid (1-42), human TFA (Amyloid β-Peptide (1-42) (human) TFA) is a 42-amino acid peptide which plays a key role in the pathogenesis of Alzheimer disease.
    β-Amyloid-<sup>15</sup>N (1-42), human TFA
  • HY-W707693
    Scyllo-Inositol-d6
    Scyllo-Inositol-d6 is the deuterium labeled Scyllo-Inositol (HY-W010041). Scyllo-Inositol is an inhibitor that targets the aggregation of misfolded proteins (such as α-synuclein and Amyloid-β), is orally effective, and can cross the blood-brain barrier. Scyllo-Inositol can selectively bind to and stabilize non-toxic oligomers, preventing them from converting into toxic fibers, exerting protein homeostasis regulation and neuroprotective activity. Scyllo-Inositol binds to the hydrophobic region of pathogenic proteins, inhibits protein aggregation, and promotes lysosome- and proteasome-mediated degradation pathways, thereby reducing neurotoxicity. Scyllo-Inositol can be used in the study of neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, and Huntington's disease.
    Scyllo-Inositol-d<sub>6</sub>
  • HY-N0044R
    Ginsenoside Re (Standard)
    		Inhibitor
    Ginsenoside Re (Standard) is the analytical standard of Ginsenoside Re. This product is intended for research and analytical applications. Ginsenoside Re (Ginsenoside B2) is an extract from Panax notoginseng. Ginsenoside Re decreases the β-amyloid protein (Aβ). Ginsenoside Re plays a role in antiinflammation through inhibition of JNK and NF-κB.
    Ginsenoside Re (Standard)
  • HY-P10180
    β-Amyloid/A4 Protein Precusor (319-335)
    β-Amyloid/A4 Protein Precusor (319-335) (APP (319-335)) is a peptide fragment of β-Amyloid/A4 protein precursor (APP). β-Amyloid/A4 Protein Precusor (319-335) can recognize the heparinase-insensitive site that contains the neuritotropic activity of APP.
    β-Amyloid/A4 Protein Precusor (319-335)
  • HY-152111
    AChE/MAO-B-IN-3
    		Inhibitor
    AChE/MAO-B-IN-3 (Compound D30) is a dual AChE and MAO-B inhibitor with IC50s of 0.0257 μM and 0.0456 μM against human AChE and MAO-B, respectively. AChE/MAO-B-IN-3 can be used for the research of Alzheimer’s disease.
    AChE/MAO-B-IN-3
  • HY-B0104S2
    Glimepiride-d8
    		Inhibitor
    Glimepiride-d8 (Glimperide-d8; HOE-490-d8) is deuterium-labeled Glimepiride (HY-B0104).
    Glimepiride-d<sub>8</sub>
  • HY-P1894
    β-Amyloid Protein Precursor 770 (135-155)
    β-Amyloid Protein Precursor 770 (135-155) is a peptide of amyloid precursor protein isoform (APP 770). APP 770 produces Aβ40/42.
    β-Amyloid Protein Precursor 770 (135-155)
  • HY-169197
    D-688
    		Inhibitor
    D-688 is an inhibitor of Tau and Aβ. D-688 can reverse Aβ1–42-induced toxicity in SH-SH5Y cells and has significant neuroprotective properties. D-688 can improve the survival rate of Drosophila melanogaster expressing the human tau protein isoform (2N4R).
    D-688
  • HY-P1060
    LPYFD-NH2
    LPYFD-NH2, a pentapeptide, exerts some inhibitory effect on the aggregation of Aβ(1-42). LPYFD-NH2 can be used for the research of Alzheimer’s disease.
    LPYFD-NH2
  • HY-146347
    MAO-B-IN-10
    		Inhibitor
    MAO-B-IN-10 (compound 4f) is a potent, selective, BBB-penetrated MAO-B (monoamine oxidase-B) inhibitor, with IC50 of 5.3 μM. MAO-B-IN-10 can inhibit (58.2%) and disaggregate (43.3%) self-mediated Aβ (amyloid β) aggregation. MAO-B-IN-10 can be use for Alzheimer’s disease research.
    MAO-B-IN-10
  • HY-P3859
    Cys-Gly-Lys-Arg-Amyloid β-Protein (1-42)
    Cys-Gly-Lys-Arg-Amyloid β-Protein (1-42) is a peptide fragment of amyloid β-protein (Aβ). Cys-Gly-Lys-Arg-Amyloid β-Protein (1-42) can be used in research of Alzheimer's disease.
    Cys-Gly-Lys-Arg-Amyloid β-Protein (1-42)
  • HY-146251
    BuChE-IN-6
    		Inhibitor
    BuChE-IN-6 (compound 1b) is a potent and selective BuChE (butyrylcholinesterase) inhibitor, with IC50 values of 0.46 and 0.51 μM for eqBuChE and hBuChE, respectively. BuChE-IN-6 also inhibits Aβ42 self-aggregation.
    BuChE-IN-6
  • HY-P990595
    GSK-933776
    		Inhibitor
    GSK-933776 is a humanized antibody expressed in CHO, targeting Amyloid Beta/Aβ. GSK-933776 has huIgG1 heavy chain and huκ light chain, with a predicted molecular weight (MW) of 145.34 kDa. The isotype control for GSK-933776 can be referenced as Human IgG1 kappa, Isotype Control (HY-P99001).
    GSK-933776
  • HY-179459
    SJ-300
    		Inhibitor
    SJ-300 is a potent and selective, orally active and brain-penetrat DKK3-LRP1 interaction inhibitor. SJ-300 restores Aβ clearance in AD models. SJ 300 binds to mLRPIV with a Kd of 7.9 μM, inhibits the DKK3 mLRPIV complex with an IC50 of 3.2 μM, and does not disrupt the binding of Aβ to LRP1. SJ 300 rescues cognitive function and ameliorates neuropathology (Aβ plaque reduction ≈ 73.3 %) in vivo. SJ 300 can be employed for research in Alzheimer’s disease.
    SJ-300
  • HY-P2792
    Beauveriolide III
    		Inhibitor 99.9%
    Beauveriolide III is an inhibitor of lipid droplet formation in mouse macrophages.
    Beauveriolide III
  • HY-P4878
    5-TAMRA-Amyloid β-Protein (1-40)
    5-TAMRA-Amyloid β-Protein (1-40) is a fluorescent (TAMRA)-labeled Amyloid β-Protein (1-40), Abs/Em=544/572 nm.
    5-TAMRA-Amyloid β-Protein (1-40)
  • HY-144752
    cSPM
    cSPM (Cyclic spermine) is a Aβ42 inhibitor. cSPM could suppress the aggregation of three different peptides, Aβ42, amylin and insulin, and decreases cytotoxicity.
    cSPM
Cat. No. Product Name / Synonyms Application Reactivity