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A1075

Amyloid β Protein Fragment 1-40

≥90% (HPLC), powder

Synonyma:

Aβ40

Přihlásit pro zobrazení organizačních a smluvních cen.

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Vám/SKUDostupnostCena
0.1 mg
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5 060,00 Kč
0.5 mg
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17 600,00 Kč

O této položce

Empirický vzorec (Hillův zápis):
C194H295N53O58S
Číslo CAS:
Molekulová hmotnost:
4329.80
UNSPSC Code:
12352202
NACRES:
NA.32
MDL number:
Form:
powder
Assay:
≥90% (HPLC)

5 060,00 Kč


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Quality Segment

assay

≥90% (HPLC)

form

powder

color

white

solubility

1% acetic acid: 1 mg/mL, saline: insoluble

UniProt accession no.

storage temp.

−20°C

Gene Information

human ... APP(351)

General description

Amyloid β Protein Fragment 1-40 (Aβ40) is derived from the amyloid-β protein (Aβ), which is mapped to human chromosome 21q21.3. Aβ40 is predominantly present in the vascular amyloid deposits. Aβ40 comprises of C-terminal membrane insertion domain. It shows structural transition from random coil to a α-helical structure in a water-micelle medium.

Application

Amyloid β Protein Fragment 1-40 has been used:
  • in the temperature based conformational studies using Fourier transform infrared/differential scanning calorimetry (FT-IR/DSC) studies
  • as a reference standard in sandwich-type enzyme immunoassay for quantifying amyloid A4 protein in cerebrospinal fluid of patients with head trauma
  • as a component of embryonic stem cell medium to inhibit amyloid deposition in fibroblasts

Biochem/physiol Actions

Amyloid β-protein is neurotrophic and neurotoxic in vivo and in vitro in human and rat neuronal cell cultures. β-Amyloid peptides (amino acids 1-42 and 1-43) are the major constituents of senile plaques and neurofibrillary tangles that occur in the hippocampus, neocortex, and amygdala of patients with Alzheimer′s disease.
Amyloid β Protein Fragment 1-40 (Aβ40) forms cation based ion channels.

Preparation Note

For maximal biological activity, dilute the stock in calcium-free PBS to 1 mg/ml and incubate at 37 °C for 4 days.

Other Notes

Lyophilized from 0.1% TFA in H2O

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Tato položka
A4559A2201A7973
description

≥90% (HPLC), powder

description

≥97% (HPLC)

description

≥95% (HPLC)

description

≥80% (HPLC), lyophilized powder

assay

≥90% (HPLC)

assay

≥97% (HPLC)

assay

≥95% (HPLC)

assay

≥80% (HPLC)

form

powder

form

powder

form

powder

form

lyophilized powder

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

solubility

saline: insoluble, 1% acetic acid: 1 mg/mL

solubility

-

solubility

-

solubility

H2O: soluble

UniProt accession no.

P05067

UniProt accession no.

P05067

UniProt accession no.

P05067

UniProt accession no.

P05067

Gene Information

human ... APP(351)

Gene Information

human ... APP(351)

Gene Information

human ... APP(351)

Gene Information

human ... APP(351)


Skladovací třída

11 - Combustible Solids

Co se děje?

WGK 3

Bod vzplanutí (°F)

Not applicable

Bod vzplanutí (°C)

Not applicable

PPE (osobní ochranné prostředky)

Eyeshields, Gloves, type N95 (US)



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Osvědčení o analýze (COA)

Lot/Batch Number

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Questions

1–3 of 3 Questions  
  1. This product has a temperature storage of -20 C on the label, but the material did not come on ice. Is the product still good?

    1 answer
    1. Where there may short-term exposure (I.e. during shipment) to conditions other than those recommended for long-term storage that will not affect product quality, Sigma-Aldrich will ship at ambient temperature.

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  2. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  3. Which document(s) contains shelf-life or expiration date information for a given product?

    1 answer
    1. If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

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