Amyloid β-Protein (1-16) trifluoroacetate salt
Names
[ CAS No. ]:
131580-10-4
[ Name ]:
Amyloid β-Protein (1-16) trifluoroacetate salt
[Synonym ]:
L-Lysine, L-α-aspartyl-L-alanyl-L-α-glutamyl-L-phenylalanyl-L-arginyl-L-histidyl-L-α-aspartyl-L-serylglycyl-L-tyrosyl-L-α-glutamyl-L-valyl-L-histidyl-L-histidyl-L-glutaminyl-
L-α-Aspartyl-L-alanyl-L-α-glutamyl-L-phenylalanyl-L-arginyl-L-histidyl-L-α-aspartyl-L-serylglycyl-L-tyrosyl-L-α-glutamyl-L-valyl-L-histidyl-L-histidyl-L-glutaminyl-L-lysine
Biological Activity
[Description]:
β-Amyloid (1-16) is a β-Amyloid protein fragment involved in metal binding. Beta-amyloid is a peptide that forms amyloid plaques in the brains of Alzheimer's disease (AD) patients.
[Related Catalog]:
[Target]
[In Vivo]
β-amyloid (1-16) fragment is considered as valid models to examine the contribution of the key histidine residues (His , His in mouse and His , His , His in human fragments) to the Ab–Cu2+ interaction. Oxidation targets for β-Amyloid (1-16) are the histidine residues coordinated to the metal ions. Copper is bound to Aβ in senile plaque of Alzheimer’s disease with β-Amyloid (1-16) taking part in the coordination of the Cu2+ ions. Cu2+ and Zn2+ are linked with the neurotoxicity of -Amyloid and free radical damage[1]. β-amyloid (1-16) is the minimal amino acidic sequence display a Cu coordination mode which involves three Histidines (His6, His13 and His14). β-amyloid (1-16) is supposed to be involved in metal binding[2]. Human β-amyloid interacts with zinc ions through its metal-binding domain 1-16. The C-tails of the two polypeptide chains of the rat Aβ(1-16) dimer are oriented in opposite directions to each other, which hinders the assembly of rat Aβ dimers into oligomeric aggregates. Thus, the differences in the structure of zinc-binding sites of human and rat β-Amyloid (1-16), their ability to form regular cross-monomer bonds, and the orientation of their hydrophobic C-tails could be responsible for the resistance of rats to Alzheimer's disease[3].
[References]
[Related Small Molecules]
Chemical & Physical Properties
[ Density]:
1.6±0.1 g/cm3
[ Molecular Formula ]:
C84H119N27O28
[ Molecular Weight ]:
1955.04
[ Exact Mass ]:
1953.871826
[ LogP ]:
-6.41
[ Index of Refraction ]:
1.696
[ Storage condition ]:
-15°C
[ Water Solubility ]:
Soluble in water or aqueous buffer