Free-Energy Landscape of Amyloid-Beta Peptides

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Energy landscape theory for Alzheimer's amyloid beta-peptide fibril elongation.

Recent experiments on the kinetics of deposition and fibril elongation of the Alzheimer's beta-amyloid peptide on preexisting fibrils are analyzed. A mechanism is developed based on the dock-and-lock scheme recently proposed by Maggio and coworkers to organize their experimental observations of the kinetics of deposition of beta-peptide on preexisting amyloid fibrils and deposits. Our mechanism...

متن کامل

P135: The Role of Amyloid Beta-Peptides and Tau Protein in Alzheimer\'s Disease

Alzheimer's desease is the most common age-related neurodegenerative disorder, and cognitive problems such as defects in learning and memory are of its symptoms.  Among the factors involved in the pathogenesis of the disease are biochemical disorders in protein production, oxidative stress, decreased acetylcholine secretion and inflammation of the brain tissue. Extra-neuronal accumulation ...

متن کامل

Membrane disordering effects of beta-amyloid peptides.

The interaction of Abeta with synaptosomal plasma membranes decreases membrane fluidity. Using model membrane/liposome systems the interaction of Abeta with specific lipids (e.g. phospholipids, gangliosides, cholesterol) has been defined. The formation of the beta-sheet structure of Abeta when undergoing peptide aggregation is important for Abeta's membrane perturbing properties. This effect ca...

متن کامل

Protection against beta-amyloid-induced apoptosis by peptides interacting with beta-amyloid.

beta-Amyloid peptide produces apoptosis in neurons at micromolar concentrations, but the mechanism by which beta-amyloid exerts its toxic effect is unknown. The normal biological function of beta-amyloid is also unknown. We used phage display, co-precipitation, and mass spectrometry to examine the protein-protein interactions of beta-amyloid in normal rabbit brain in order to identify the bioch...

متن کامل

Exploring the aggregation free energy landscape of the amyloid-β protein (1-40).

A predictive coarse-grained protein force field [associative memory, water-mediated, structure, and energy model for molecular dynamics (AWSEM)-MD] is used to study the energy landscapes and relative stabilities of amyloid-β protein (1-40) in the monomer and all of its oligomeric forms up to an octamer. We find that an isolated monomer is mainly disordered with a short α-helix formed at the cen...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Biophysical Journal

سال: 2018

ISSN: 0006-3495

DOI: 10.1016/j.bpj.2017.11.2876