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-P10630
    Pep63
    		Inhibitor
    Pep63 is a neuroprotective peptide (VFQVRARTVA). Pep63 has a neuroprotective effect on synaptic plasticity and memory. Pep63 can competitively bind with Aβ1-42 oligomers, and can block Aβ fiber formation. Pep63 can be used for Alzheimer’s disease (AD) research.
    Pep63
  • HY-119196
    Caprospinol
    		Ligand
    Caprospinol (SP-233) is a steroid compound candidate based on the structure of 22R-hydroxycholesterol. It has multiple mechanisms of neuroprotection, including binding to β-amyloid protein (Aβ(42)), interacting with the mitochondrial respiratory chain, clearing Aβ(42) monomers, and acting as a σ-1 receptor ligand. It can cross the blood-brain barrier in vivo and restore cognitive impairment, and has the potential to inhibit Alzheimer's disease.
    Caprospinol
  • HY-162832
    Amyloid-β-IN-1
    		Inhibitor
    Amyloid-β-IN-1 (compound 13) is a synthetic peptide containing the hydrophobic C-terminal region "VVIA-NH2" and its reverse sequence "AIVV-NH2" of Aβ42, which is an Aβ inhibitor. Amyloid-β-IN-1 can inhibit Aβ aggregation and has neuroprotective effects.
    Amyloid-β-IN-1
  • HY-W740884
    Rutin-d3
    		Inhibitor
    Rutin-d3 is a deuterated labeled Rutin-d3.
    Rutin-d<sub>3</sub>
  • HY-P10487
    APP669-711
    APP669-711 is a peptide segment from amino acid 669 to amino acid 711 of amyloid precursor protein (APP). APP669-711 can be used to diagnose the amyloid deposition in the brain, and is a biomarker for Alzheimer's disease (AD) research.
    APP669-711
  • HY-N0603R
    20(S)-Ginsenoside Rg3 (Standard)
    		Inhibitor
    20(S)-Ginsenoside Rg3 (Standard) is the analytical standard of 20(S)-Ginsenoside Rg3. This product is intended for research and analytical applications. 20(S)-Ginsenoside Rg3 is the main component of Panax ginseng C. A. Meyer. Ginsenoside Rg3 inhibits Na+ and hKv1.4 channel with IC50s of 32.2±4.5 and 32.6±2.2 μM, respectively. 20(S)-Ginsenoside Rg3 also inhibits Aβ levels, NF-κB activity, and COX-2 expression.
    20(S)-Ginsenoside Rg3 (Standard)
  • HY-17406R
    Tolcapone (Standard)
    		Inhibitor
    Tolcapone (Standard) (Ro 40-7592 (Standard)) is the analytical standard of Tolcapone (HY-17406). Tolcapone (Ro 40-7592) is a selective, potent and orally active COMT inhibitor with an IC50of 773 nM. Tolcapone can inhibits α-syn and Aβ42 oligomerization and fibrillogenesis. Tolcapone can cause oxidative stress and induce cancer cells apoptosis and ROS production. Tolcapone can be used for the researches of cancer and neurological disease, such as Parkinson disease and neuroblastoma.
    Tolcapone (Standard)
  • HY-168031
    AChE/BChE-IN-21
    		Inhibitor
    AChE/BChE-IN-21 is a histamine H3 receptor antagonist, calcium channel blocker, and acetylcholinesterase inhibitor. AChE/BChE-IN-21 exhibits neuroprotective activity against H2O2 and Aβ1-40, and can restore cognitive function in AD mice.
    AChE/BChE-IN-21
  • HY-P990301
    Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2)
    		Inhibitor
    Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2) is a mouse-derived IgG2b λ type antibody inhibitor, targeting to Amyloid-beta. Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2) recognizes unaggregated, oligomeric or fibrillar forms of Aβ42 and unaggregated Aβ40. Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2) is selective for human Aβ42 over Aβ40, but not amyloid precursor protein (APP). Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2) can immunostain human or rat and mouse tissue. Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2) can be used for detections of western blot, immunohistochemistry, immunofluorescence, immunoprecipitation and ELISA.
    Anti-Human/Mouse/Rat Amyloid-beta Antibody (MOAB-2)
  • HY-P10823
    RI-OR2
    		Inhibitor
    RI-OR2, a retro-inverso peptide, is an amyloid-β (Aβ) oligomerization inhibitor. RI-OR2 binds to immobilized β-Amyloid (1-42) (HY-P1363A) monomers and fibrils, with an apparent Kd of 9-12 μM, and also acted as an inhibitor of Aβ(1-42) fibril extension.
    RI-OR2
  • HY-P10039
    β Amyloid (1-16) rat
    β-Amyloid (1-16) rat is a β-amyloid peptide (Abeta), a metal-binding domain fragment of amyloid. Three amino acid substitutions in β-Amyloid (1-16) rat that differ from humans render rats and mice less susceptible to AD-like neurodegeneration.
    β Amyloid (1-16) rat
  • HY-N8103
    Heishuixiecaoline A
    Heishuixiecaoline A is a germacrane-type sesquiterpenoid. Heishuixiecaoline A shows protective effect on the neurotoxicity of PC12 cells induced by Aβ25-35.
    Heishuixiecaoline A
  • HY-146142
    AChE/BuChE-IN-2
    		Inhibitor
    AChE/BuChE-IN-2 (Compound 5f) is an orally active AChE and BuChE inhibitor with IC50 values of 0.72 μM and 0.16 μM, respectively. AChE/BuChE-IN-2 shows a non-competitive inhibition with AChE and shows potent self-induced β-amyloid (Aβ) aggregation inhibition with an IC50 of 62.52 μM. AChE/BuChE-IN-2 can cross the BBB.
    AChE/BuChE-IN-2
  • HY-146483
    Anti-Aβ agent 1A
    		Inhibitor
    Anti-Aβ agent 1A (compound M15) has potent activity against amyloid-β. Anti-Aβ agent 1A possesses can significantly inhibit LPS-induced levels of IL-1β, IL-6 and TNF-α, and reduces the apoptosis of SH-SY5Y induced by H2O2 through mitochondria pathway. Anti-Aβ agent 1A possesses antioxidant, anti-inflammatory, anti-Aβ toxicity and neuroprotective activities. Anti-Aβ agent 1A can be used for researching Alzheimer’s disease (AD).
    Anti-Aβ agent 1A
  • HY-136813
    Multitarget AD inhibitor-1
    		Inhibitor
    Multitarget AD inhibitor-1 is a selective and reversible butyrylcholinesterase (BuChE) inhibitor with IC50s of 7.22 μM and 1.55 μM for hBuChE and eqBuChE (BuChE from equine serum), respectively. Multitarget AD inhibitor-1 inhibits β-secretase (IC50hBACE-1=41.60 μM), amyloid β aggregation (IC50Aβ=3.09 μM), tau aggregation. Multitarget AD inhibitor-1, a diphenylpropylamine derivative, has the potential for multifunctional disease-modifying anti-Alzheimer’s research.
    Multitarget AD inhibitor-1
  • HY-117983
    RU-505
    		Inhibitor
    RU-505 is an effective β-amyloid (Aβ)-fibrinogen interaction inhibitor with IC50s of 5.00 and 2.72 μM in fluorescence polarization (FP) and AlphaLISA assays, respectively. RU-505 is highly permeable to the BBB. RU-505 reduces cerebral amyloid angiopathy (CAA). RU-505 can be used for the research of Alzheimer’s disease (AD).
    RU-505
  • HY-P3793
    Amyloid β-Protein (33-42) (TFA)
    		Chemical
    Amyloid β-Protein (33-42) TFA is the residues 33-42 fragment of the β-amyloid protein. Amyloid β-Protein (33-42) TFA inhibits Aβ42-induced toxicity.
    Amyloid β-Protein (33-42) (TFA)
  • HY-N7046R
    Silybin B (Standard)
    		Inhibitor
    Silybin (Silibinin B) (Standard) is the analytical standard of Silybin B (HY-N7046). This product is intended for research and analytical applications. Silybin B (Silibinin B) is an orally active amyloid-β aggregation inhibitor and ATR pathway activator, that can cross the blood-brain barrier. Silybin B inhibits Aβ fibril formation and promotes amorphous aggregate formation, while activating the ATR-mediated DNA damage repair pathway and inhibiting JNK/p38 MAPK signaling. Silybin B can reduce Cisplatin (HY-17394)-induced neuronal DNA damage and apoptosis. Silybin B has anti-oxidative stress, cell cycle regulation and neuroprotective activities. Silybin B is mainly used in the study of Alzheimer's disease and Cisplatin chemotherapy-related neurotoxicity.
    Silybin B (Standard)
  • HY-148547
    q-FTAA
    		Inhibitor
    q-FTAA binds to Aβ1-42 fibrils with EC50 values of 330-630, 300-500 nM for Aβ1-42 fibrils, alzheimer's disease PIB binding complex (ADPBC) , respectively. q-FTAA has the potential for the research of Alzheimer's disease (AD).
    q-FTAA
  • HY-P5906
    Citrullinated amyloid-β (1-40) peptide (human)
    Citrullinated amyloid-β (1-40) peptide (human) (Citrullinated Aβ (1-40)) is a modified form of β-Amyloid (1-40) (HY-P0265) with a citrullination at the Arg5 site. Citrullinated amyloid-β (1-40) peptide (human) exhibits increased transient formation of soluble oligomers and insoluble aggregates composed of distorted parallel β-sheets compared with unmodified β-Amyloid (1-40).
    Citrullinated amyloid-β (1-40) peptide (human)
Cat. No. Product Name / Synonyms Application Reactivity