A new era for understanding amyloid structures and disease

MG Iadanza, MP Jackson, EW Hewitt… - … reviews Molecular cell …, 2018 - nature.com
The aggregation of proteins into amyloid fibrils and their deposition into plaques and
intracellular inclusions is the hallmark of amyloid disease. The accumulation and deposition …

Amyloid structure–one but not the same: the many levels of fibrillar polymorphism

JS Pedersen, CB Andersen, DE Otzen - The FEBS journal, 2010 - Wiley Online Library
Many proteins and peptides can form amyloid‐like structures both in vivo and in vitro.
Although strikingly similar fibrillar structures can be observed across a variety of amino acid …

The role of stable α-synuclein oligomers in the molecular events underlying amyloid formation

N Lorenzen, SB Nielsen, AK Buell… - Journal of the …, 2014 - ACS Publications
Studies of proteins' formation of amyloid fibrils have revealed that potentially cytotoxic
oligomers frequently accumulate during fibril formation. An important question in the context …

Native glucagon amyloids catalyze key metabolic reactions

E Arad, G Yosefi, S Kolusheva, R Bitton, H Rapaport… - ACS …, 2022 - ACS Publications
Glucagon is a prominent peptide hormone, playing central roles in the regulation of glucose
blood-level and lipid metabolism. Formation of glucagon amyloid fibrils has been previously …

The peptide hormone glucagon forms amyloid fibrils with two coexisting β-strand conformations

MD Gelenter, KJ Smith, SY Liao, VS Mandala… - Nature structural & …, 2019 - nature.com
Glucagon and insulin maintain blood glucose homeostasis and are used to treat
hypoglycemia and hyperglycemia, respectively, in patients with diabetes. Whereas insulin is …

Not all β-sheets are the same: amyloid infrared spectra, transition dipole strengths, and couplings investigated by 2D IR spectroscopy

JP Lomont, JS Ostrander, JJ Ho, MK Petti… - The Journal of …, 2017 - ACS Publications
We report the transition dipole strengths and frequencies of the amyloid β-sheet amide I
mode for the aggregated proteins amyloid-β1–40, calcitonin, α-synuclein, and glucagon …

The biofilm adhesion protein Aap from Staphylococcus epidermidis forms zinc-dependent amyloid fibers

AE Yarawsky, SL Johns, P Schuck, AB Herr - Journal of Biological …, 2020 - ASBMB
The skin-colonizing commensal bacterium Staphylococcus epidermidis is a leading cause of
hospital-acquired and device-related infections. Its pathogenicity in humans is largely due to …

[HTML][HTML] The route to protein aggregate superstructures: Particulates and amyloid-like spherulites

V Vetri, V Foderà - FEBS letters, 2015 - Elsevier
Depending on external conditions, native proteins may change their structure and undergo
different association routes leading to a large scale polymorphism of the aggregates. This …

The effect of osmolytes on protein fibrillation

F Macchi, M Eisenkolb, H Kiefer, DE Otzen - International journal of …, 2012 - mdpi.com
Osmolytes are small molecules that are exploited by cells as a protective system against
stress conditions. They favour compact protein states which makes them stabilize globular …

Probing ensemble polymorphism and single aggregate structural heterogeneity in insulin amyloid self-assembly

G De Luca, DF Galparsoro, G Sancataldo… - Journal of colloid and …, 2020 - Elsevier
Ensembles of protein aggregates are characterized by a nano-and micro-scale
heterogeneity of the species. This diversity translates into a variety of effects that protein …