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Key Documents

A4559

Sigma-Aldrich

Amyloid β-Protein Fragment 25-35

≥97% (HPLC)

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About This Item

Empirical Formula (Hill Notation):
C45H81N13O14S
CAS Number:
Molecular Weight:
1060.27
MDL number:
UNSPSC Code:
12352202
PubChem Substance ID:
NACRES:
NA.32

Quality Level

Assay

≥97% (HPLC)

form

powder

composition

Protein Content, ≥80%

UniProt accession no.

storage temp.

−20°C

SMILES string

CCC(C)C(NC(=O)C(NC(=O)C(C)NC(=O)CNC(=O)C(CCCCN)NC(=O)C(CC(N)=O)NC(=O)C(CO)NC(=O)CN)C(C)CC)C(=O)NCC(=O)NC(CC(C)C)C(=O)NC(CCSC)C(O)=O

InChI

1S/C45H81N13O14S/c1-9-24(5)36(43(69)50-21-35(63)52-29(17-23(3)4)40(66)55-28(45(71)72)14-16-73-8)58-44(70)37(25(6)10-2)57-38(64)26(7)51-34(62)20-49-39(65)27(13-11-12-15-46)54-41(67)30(18-32(48)60)56-42(68)31(22-59)53-33(61)19-47/h23-31,36-37,59H,9-22,46-47H2,1-8H3,(H2,48,60)(H,49,65)(H,50,69)(H,51,62)(H,52,63)(H,53,61)(H,54,67)(H,55,66)(H,56,68)(H,57,64)(H,58,70)(H,71,72)

InChI key

WIHBNMPFWRHGDF-UHFFFAOYSA-N

Gene Information

human ... APP(351)

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Amino Acid Sequence

Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met

General description

Amyloid β-Protein Fragment 25-35 (Aβ25-35) is derived from the amyloid-β protein.amyloid-β protein, which is mapped to human chromosome 21q21. Aβ25-35 lacks the N-terminal domain and the metal binding site and is majorly generated by proteolytic cleavage of Aβ(1−40) peptides. It has a β-sheet and β-turn structure.

Application

Amyloid β-Protein Fragment 25-35 has been used:
  • to induce neurotoxicity in cortical cultures
  • to induce Alzheimer′s disease in rat model
  • to induce apoptosis in mesenchymal stem cells (MSCs)

Biochem/physiol Actions

Amyloid β-Protein Fragment 25-35 (Aβ25-35) is involved in the pathogenesis of Alzheimer′s disease. Inhibitors of this transition may serve as a potential agent in managing Alzheimer′s disease. It is present in the subiculum and entorhinal cortex neurons of Alzheimer′s brain samples and inclusion-body myositis (IBM) muscle. It binds to receptors present in microglia and is capable of lipid membrane insertion. The functional domain sequence of Aβ comprising of sequence GSNKGAIIGLM elicits neurotrophic and neurotoxic effects. Aβ25-35 exhibits rapid aggregation and displays age dependant neurotoxicity.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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