Articles with "fibril formation" as a keyword



The pro‐sequence of parathyroid hormone prevents premature amyloid fibril formation

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Published in 2023 at "FEBS Letters"

DOI: 10.1002/1873-3468.14587

Abstract: The parathyroid hormone (PTH) regulates the calcium and phosphate level in blood after secretion from parathyroid chief cells. The pre‐ and pro‐sequences of precursor preproPTH get cleaved during PTH maturation. In secretory granules, PTH forms… read more here.

Keywords: hormone; prevents premature; parathyroid; parathyroid hormone ... See more keywords

Nucleation of Huntingtin Aggregation Proceeds via Conformational Conversion of Pre‐Formed, Sparsely‐Populated Tetramers

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Published in 2024 at "Advanced Science"

DOI: 10.1002/advs.202309217

Abstract: Pathogenic huntingtin exon‐1 protein (httex1), characterized by an expanded polyglutamine tract located between the N‐terminal amphiphilic region and a C‐terminal polyproline‐rich domain, forms fibrils that accumulate in neuronal inclusion bodies, and is associated with a… read more here.

Keywords: sparsely populated; fibril formation; conversion pre; aggregation ... See more keywords

Amyloid Fibril Formation on Neuronal Cells in the Coexistence of Aβ40 and Aβ42

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Published in 2024 at "ChemBioChem"

DOI: 10.1002/cbic.202400603

Abstract: The abnormal aggregation and subsequent deposition of amyloid β‐protein (Aβ) in the brain are considered central to the pathogenesis of Alzheimer's disease. The two major species of Aβ are Aβ40 and Aβ42, present at an… read more here.

Keywords: fibril formation; amyloid fibril; formation neuronal; aggregation ... See more keywords
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A Competition of Secondary and Primary Nucleation Controls Amyloid Fibril Formation of the Parathyroid Hormone.

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Published in 2023 at "Macromolecular bioscience"

DOI: 10.1002/mabi.202200525

Abstract: Functional amyloids belong to an increasing class of non-toxic biologic material, in contrast to the prominent disease-related amyloids. Here, we report on the fibril formation of the parathyroid hormone PTH84 as a representative candidate following… read more here.

Keywords: nucleation; formation parathyroid; secondary nucleation; parathyroid hormone ... See more keywords

Polyphenol‐solubility alters amyloid fibril formation of α‐synuclein

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Published in 2021 at "Protein Science"

DOI: 10.1002/pro.4130

Abstract: Amyloid fibril formation is associated with various amyloidoses, including neurodegenerative diseases such as Alzheimer's and Parkinson's diseases. Amyloid fibrils form above the solubility of amyloidogenic proteins or peptides upon breaking supersaturation, followed by a nucleation… read more here.

Keywords: formation synuclein; formation; fibril formation; solubility ... See more keywords

Multivalent interacting glycodendrimer to prevent amyloid-peptide fibril formation induced by Cu(II): A multidisciplinary approach

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Published in 2018 at "Nano Research"

DOI: 10.1007/s12274-017-1734-9

Abstract: Amyloid peptide fibrillogenesis induced by Cu(II) ions is a key event in the pathogenesis of Alzheimer’s disease. Dendrimers have been found to be active in preventing fibril formation. Therefore, they hold promise for the treatment… read more here.

Keywords: amyloid peptide; glycodendrimer; formation; formation induced ... See more keywords

Effect of site-specific amino acid D-isomerization on β-sheet transition and fibril formation profiles of Tau microtubule-binding repeat peptides.

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Published in 2019 at "Biochemical and biophysical research communications"

DOI: 10.1016/j.bbrc.2018.11.043

Abstract: d-amino acid-containing proteins have been found in several human tissues, and the spontaneous accumulation of d-amino acids in proteins is thought to be involved in age-dependent diseases including dementia. Tau, a microtubule-associated protein, is a… read more here.

Keywords: acid isomerization; fibril formation; tau; amino acid ... See more keywords

The flanking peptides issue from the maturation of the human islet amyloid polypeptide (hIAPP) slightly modulate hIAPP-fibril formation but not hIAPP-induced cell death.

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Published in 2019 at "Biochimie"

DOI: 10.1016/j.biochi.2019.12.005

Abstract: Type 2 diabetes mellitus is a disease characterized by the formation of amyloid fibrillar deposits consisting mainly in human islet amyloid polypeptide (hIAPP), a peptide co-produced and co-secreted with insulin. hIAPP and insulin are synthesized… read more here.

Keywords: flanking peptides; hiapp; formation; fibril formation ... See more keywords

Kinetics of protein fibril formation: Methods and mechanisms.

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Published in 2017 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2016.06.052

Abstract: Amyloid fibril formation is a self-assembly reaction induced by favourable conformational changes of proteins leading to a stable, structurally organized aggregates. The deposition of stable protein fibrils in organs and tissues results in many diseases… read more here.

Keywords: methods mechanisms; formation methods; formation; fibril formation ... See more keywords

Diameter of the vial plays a crucial role in the amyloid fibril formation: Role of interface area between hydrophilic-hydrophobic surfaces.

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Published in 2017 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2017.03.070

Abstract: Number of incurable diseases associated with neurodegenerative syndromes like Alzheimer's, and Parkinson's, are owing to protein aggregation which leads to amyloid fibril formation. In vitro, such fibrillation depends on concentration, temperature, pH, ionic strength, organic… read more here.

Keywords: fibrillation; fibril formation; diameter vial; role ... See more keywords
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Effect of natural biopolymers on amyloid fibril formation and morphology.

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Published in 2018 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2017.07.171

Abstract: Amyloid fibrils are associated with the pathogenesis of protein misfolding diseases such as Alzheimer's disease. These fibrils typically exhibit different morphologies when grown in vitro, and this has been known to affect their biological properties… read more here.

Keywords: effect natural; formation; fibril formation; amyloid fibrils ... See more keywords