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Full-Text Articles in Medicine and Health Sciences
Serotonin Promotes Serum Albumin Interaction With The Monomeric Amyloid Β Peptide, Ekaterina A. Litus, Alexei S. Kazakov, Eugenia I. Deryusheva, Ekaterina L. Nemashkalova, Marina P. Shevelyova, Aliya A. Nazipova, Maria E. Permyakova, Elena V. Raznikova, Vladimir N. Uversky, Sergei E. Permyakov
Serotonin Promotes Serum Albumin Interaction With The Monomeric Amyloid Β Peptide, Ekaterina A. Litus, Alexei S. Kazakov, Eugenia I. Deryusheva, Ekaterina L. Nemashkalova, Marina P. Shevelyova, Aliya A. Nazipova, Maria E. Permyakova, Elena V. Raznikova, Vladimir N. Uversky, Sergei E. Permyakov
Molecular Medicine Faculty Publications
Prevention of amyloid β peptide (Aβ) deposition via facilitation of Aβ binding to its natural depot, human serum albumin (HSA), is a promising approach to preclude Alzheimer’s disease (AD) onset and progression. Previously, we demonstrated the ability of natural HSA ligands, fatty acids, to improve the affinity of this protein to monomeric Aβ by a factor of 3 (BBRC, 510(2), 248–253). Using plasmon resonance spectroscopy, we show here that another HSA ligand related to AD pathogenesis, serotonin (SRO), increases the affinity of the Aβ monomer to HSA by a factor of 7/17 for Aβ40/Aβ42, respectively. Meanwhile, the structurally homologous SRO …
The Signal Peptide Of The Amyloid Precursor Protein Forms Amyloid-Like Aggregates And Enhances Aβ42 Aggregation, Kundlik Gadhave, Taniya Bhardwaj, Vladimir N. Uversky, Michele Vendruscolo, Rajanish Giri
The Signal Peptide Of The Amyloid Precursor Protein Forms Amyloid-Like Aggregates And Enhances Aβ42 Aggregation, Kundlik Gadhave, Taniya Bhardwaj, Vladimir N. Uversky, Michele Vendruscolo, Rajanish Giri
Molecular Medicine Faculty Publications
Signal sequences are short peptides at the N terminus of proteins destined for the secretion pathway. Typically, after cleavage by peptidases, signal peptides are degraded by intra-membrane proteases. In some cases, however, signal peptides can be processed further and released into the endoplasmic reticulum, secretion pathways, or cytoplasm. The consequences of these processes remain unclear, in particular considering that dysregulated signal peptides could potentially aggregate and induce cytotoxicity. To investigate this problem, we study the signal peptide of the amyloid precursor protein (APP), which originates the Alzheimer’s β-amyloid (Aβ) peptide. Our results show that this signal peptide (residues 1–17 of …