Amyloid β-Peptide (12-28) (human)

Pricing Availability Delivery Time Qty
Cat.No. 1894 - Amyloid b-peptide (12-28) (human) | Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys | CAS No. 107015-83-8
Description: Amyloid β-peptide; minimum required for binding to brain proteins

Biological Activity

Amyloid β-peptide fragment; minimum section required to bind to brain proteins. Binds with high affinity to α7-nicotinic ACh receptors, and impairs memory retention following central administration in mice in vivo.

Technical Data

M. Wt 1955.2
Formula C89H135N25O25
Storage Desiccate at -20°C
CAS Number 107015-83-8
PubChem ID 24868224
Smiles [H]N[C@@H](C(C)C)C(=O)N[C@@H](CC1=CNC=N1)C(=O)N[C@@H](CC1=CNC=N1)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(O)=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solubility Soluble to 0.70 mg/ml in water

Preparing Stock Solutions

The following data is based on the product molecular weight 1955.2. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 0.51 mL 2.56 mL 5.11 mL
5 mM 0.1 mL 0.51 mL 1.02 mL
10 mM 0.05 mL 0.26 mL 0.51 mL
50 mM 0.01 mL 0.05 mL 0.1 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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Safety Datasheet


References are publications that support the biological activity of the product.

Flood et al (1994) An amyloid β-protein fragment, A b[12-28], equipotent impairs post-training memory processing when injected into different limbic system structures. Brain Res. 663 271 PMID: 7874511

Freir and Herron (2003) Nicotine enhances the depressive actions of A β 1-40 on long-term potentiation in the rat hippocampal CA1 region in vivo. J.Neurophysiol. 89 2917 PMID: 12611941

Ray et al (1998) Binding of amyloid b-protein to intracellular brain proteins in rat and human. Neurochem.Res. 23 1277 PMID: 9804283

If you know of a relevant reference for Amyloid β-Peptide (12-28) (human), please let us know.

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