Protein Folding News and Research

RSS

Gene regulated by need to process proteins linked to enlargement of protein processing factory

Part of a cellular mechanism that regulates the folding of new proteins into their proper shapes also includes a genetic response that enlarges the factory where both protein folding and packaging of proteins occurs.

2 Nov 2004

Patients suffering from diseases as varied as Type II diabetes, Alzheimer's, Parkinson's have one thing in common

Patients suffering from diseases as varied as Type II diabetes, Alzheimer's, Parkinson's and dozens of lesser known maladies have one thing in common: they suffer from a large build up of amyloids

5 Oct 2004

Disruption of protein folding causes neurodegeneration, mental retardation

Excess accumulation in brain cells of a fat molecule called GM1-ganglioside (GM1) disrupts the folding of newly assembled proteins into their proper shapes, triggering nerve degeneration and mental retardation in children.

10 Sep 2004

Scientists visualise protein complex responsible for looking after out of shape proteins

The structure of the chaperonin complex of the bacteria Thermus thermophilus reveals clues about how the important molecule may do its job of folding new or damaged proteins within cells.

17 Aug 2004

Automated science speeds solution of Human Genome data

Scientists in Argonne's Biosciences Division are automating and accelerating the complex processes that coax a protein to reveal its structure so they can learn the role Nature assigned it.

6 Aug 2004

Are we as crazy as mad cows?

When proteins in our body work properly, we can see, smell, consume and digest food, grow muscle and brain cells. But when these infinitely useful biological building blocks fail, the most pernicious diseases arise. Susan Lindquist has scrutinized the complex origami-like shapes of proteins and come to understand how structural mistakes can lead to a frightening class of neurodegenerative disorders, including “Mad Cow Disease.”

20 May 2004

Natural biological process by which yeast cells dismantle amyloid fibers

Amyloid fibers, those clumps of plaque-like proteins that clog up the brains of Alzheimer's patients, have perplexed scientists with their robust structures. In laboratory experiments, they are able to withstand extreme heat and cold and powerful detergents that cripple most other proteins.

20 May 2004

Design of artificial prion may aid fight against mad cow disease

The culprit behind mad cow disease, a.k.a. bovine spongiform encephalopathy, is the most infamous mammalian form of prions. Prions are misfolded proteins that are capable of growing, replicating, and being passed on to daughter cells, that is, they are by themselves heritable. Beyond their disease manifestation, prions also occur naturally in some organisms (such as yeast) and may play important roles in their growth and development. Now, Osherovich and colleagues have identified the amino acid sequences that allow prions to aggregate and replicate, and thereby pass through generations of cells - and prove this by designing an artificial yeast prion that does not exist in nature.

23 Mar 2004

New Theory About Alzheimer's Disease

A group of scientists at The Scripps Research Institute has proposed a new theory about the cause of Alzheimer's disease, the progressive neurodegenerative disorder that currently afflicts some 4.5 million Americans. According to the hypothesis, the disease arises as a consequence of inflammation, which creates abnormal metabolites out of normal brain molecules.

22 Mar 2004