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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:
131602-53-4
Molecular Weight:
1060.27
MDL number:
MFCD00133076
UNSPSC Code:
12352202
PubChem Substance ID:
24890880
NACRES:
NA.32

Quality Level

200

Assay

≥97% (HPLC)

form

powder

composition

Protein Content, ≥80%

UniProt accession no.

P05067

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

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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Conformations and biological activities of amyloid beta peptide 25-35
Millucci L, et al.
Current Protein and Peptide Science, 11(1), 54-67 (2010)
MicroRNA Let-7f-5p Promotes Bone Marrow Mesenchymal Stem Cells Survival by Targeting Caspase-3 in Alzheimer Disease Model
Han L, et al.
Frontiers in Neuroscience, 12 (2018)
Wen Zhou et al.
Frontiers in aging neuroscience, 13, 629891-629891 (2021-03-13)
The pathogenesis of Alzheimer's disease (AD) involves activation of many NLRP3 inflammatory bodies, which may be related to amyloid β peptide and aggregation of misfolded proteins. Autophagy is an important regulator of inflammatory bodies. However, autophagy shows dynamic changes in
RKIP-Mediated NF-kappaB Signaling is involved in ELF-MF-mediated improvement in AD rat
Zuo H, et al.
International Journal of Molecular Sciences, 15(14), 1658-1658 (2018)
Molecular pathogenesis of Alzheimer?s disease: reductionist versus expansionist approaches
Castellani R, et al.
International Journal of Molecular Sciences, 10(3), 1386-1406 (2009)
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