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5-FAM-β-Amyloid (1-42), human Tris (5-FAM-Amyloid β-peptide (1-42) (human) Tris)

Cat No.:V86199 Purity: ≥98%
5-FAM-β-Amyloid (1-42), human Tris (5-FAM-Amyloid β-peptide (1-42) (human) Tris)
5-FAM-β-Amyloid (1-42), human Tris (5-FAM-Amyloid β-peptide (1-42) (human) Tris) Chemical Structure Product category: Beta Amyloid
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
Other Sizes
Official Supplier of:
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Product Description
5-FAM-β-Amyloid (1-42), human (5-FAM-Amyloid β-peptide (1-42) (human) TFA is a 5-FAM labeled β-Amyloid (1-42), human TFA.
5-FAM-β-Amyloid (1-42), human Tris is a fluorescently labeled variant of the human β-amyloid peptide (1-42). It is labeled with 5-carboxyfluorescein (5-FAM) at the N-terminus. This labeled peptide is used as a research tool to study β-amyloid aggregation, fibril formation, and interactions with cellular components in Alzheimer's disease research. The compound allows for the visualization and quantification of amyloid peptide behavior.
Biological Activity I Assay Protocols (From Reference)
Targets
5-FAM-β-Amyloid (1-42), human Tris does not target a specific receptor but rather serves as a probe for studying the β-amyloid peptide itself. The unlabeled β-amyloid (1-42) peptide is the primary component of amyloid plaques in Alzheimer's disease and is known to interact with various cellular receptors including the receptor for advanced glycation end products (RAGE), scavenger receptors, and N-methyl-D-aspartate (NMDA) receptors. The 5-FAM label enables detection and tracking of the peptide.
ln Vitro
In vitro, 5-FAM-β-Amyloid (1-42), human Tris is used to study amyloid aggregation kinetics and fibril formation. The 5-FAM label allows for fluorescence-based detection of aggregation using techniques such as fluorescence spectroscopy, confocal microscopy, and flow cytometry. The labeled peptide can be used to monitor the effects of potential aggregation inhibitors or modulators. The 5-FAM label does not significantly alter the aggregation properties of the peptide, making it a reliable probe for studying amyloid behavior.
ln Vivo
In vivo activity of 5-FAM-β-Amyloid (1-42), human Tris is typically assessed in animal models of Alzheimer's disease. The fluorescently labeled peptide can be administered via intracerebroventricular injection or other routes to track its distribution, clearance, and aggregation in the brain. Its fluorescence enables visualization of amyloid deposits and assessment of the effects of therapeutic interventions on amyloid pathology in living animals or ex vivo tissue sections.
Enzyme Assay
Non-cellular binding assays for 5-FAM-β-Amyloid (1-42), human Tris involve incubating the labeled peptide with various potential binding partners such as amyloid-binding proteins, lipids, or surfaces. Binding is detected by measuring changes in fluorescence intensity, anisotropy, or by using fluorescence correlation spectroscopy. The peptide's interaction with synthetic membranes or amyloid-binding dyes (e.g., Thioflavin T) can also be studied to characterize its aggregation state and binding properties.
Cell Assay
In vitro cellular experiments with 5-FAM-β-Amyloid (1-42), human Tris are performed by treating cultured neurons or other cell types with the labeled peptide. Cellular uptake, intracellular localization, and cytotoxicity are monitored using fluorescence microscopy and flow cytometry. The peptide can be used to study amyloid-induced neurotoxicity, inflammatory responses, and the effects of potential neuroprotective compounds. The 5-FAM label enables real-time tracking of peptide internalization and distribution.
Animal Protocol
In vivo animal experiments using 5-FAM-β-Amyloid (1-42), human Tris involve administration of the labeled peptide into the brains of rodents via stereotaxic injection. The distribution and aggregation of the peptide in the brain are monitored using in vivo imaging techniques such as fluorescence microscopy of brain sections or, in some cases, in vivo fluorescence imaging. The compound can be used to evaluate the efficacy of therapeutic strategies aimed at reducing amyloid accumulation or toxicity.
ADME/Pharmacokinetics
Pharmacokinetic properties of 5-FAM-β-Amyloid (1-42), human Tris are not well characterized as the compound is a research tool rather than a therapeutic agent. The peptide is typically stored as a powder at -20°C for up to 3 years and in solution at -80°C for 1 year. It should be kept away from moisture. For aggregation studies, the peptide is first dissolved in cold hexafluoroisopropanol (HFIP) to ensure monomerization, then the HFIP is evaporated, and the peptide film is dissolved in DMSO.
Toxicity/Toxicokinetics
Toxicity data for 5-FAM-β-Amyloid (1-42), human Tris are derived from studies of the unlabeled β-amyloid peptide. The peptide is known to be neurotoxic and can induce oxidative stress, inflammation, and apoptosis in neuronal cells. Appropriate safety precautions should be taken when handling the compound, including the use of personal protective equipment. The compound is for research use only and not for human therapeutic applications.
Additional Infomation
5-FAM-β-Amyloid (1-42), human Tris is also known as 5-FAM-Amyloid β-peptide (1-42) (human) Tris. The 5-FAM label provides a fluorescent tag for detection. The peptide is used in Alzheimer's disease research to study amyloid aggregation and pathology. Detailed protocols for peptide handling and aggregation studies are available from the supplier. The compound is for research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C224H321N55O66S.XC4H11NO3
Molecular Weight
4872.34 (free base)
Appearance
Solid powder
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO :~50 mg/mL (with sonication)
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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