Tag: "folding" at biology news

Protein protects against degeneration of neurons in fruit flies

...disease. Chaperone proteins normally aid in proper folding of proteins and are involved in protecting against cellular stresses. The findings were reported in the December 21, 2001, issue of Science by Howard Hughes Medical Institute investigator Nancy M. Bonini and colleagues at the University of Pennsy...

Researchers use computers to redesign protein folding

...100-times faster than the natural proteinand has a folding pathway that is completely reversed. Understanding protein folding is an importantscientific challenge, said <ahref="http://www.hhmi.org/research/investigators/bak...

Researchers find 'north pole' of the molecular world

...Proteins fold when they form, but monitoring their folding is a tricky business that the Rochester teams method can help clarify. To watch the folding process, researchers place two marker molecules at each end of the proteinone marker emits green lig...

When Shewanella meets goethite: Evidence found of recognition between animate and inanimate objects

...ineral interactions, the group is studying protein folding and biofilms. "We will continue to study and attem...use a protein to fold and unfold because it is the folding of a protein that ultimately determines its function and activity. We are applying biological force ...

Proteins are vastly more complicated than previously realized

...n more about therapies for the human body. Protein folding has been compared in complexity to the folding of delicate origami. This folding process is more complicated than previously realized, according to...

Digging for genetic fossils: Hutchinson Center researchers solve structure of ancient biological molecule

...most of what they've got." The team found that the folding of the RNA into its active structure actually changes the chemical properties of its nucleotide building blocks, giving them a much broader range of chemical capabilities needed for catalysis."We found that parts of the molecule actually change a lot...

Hopkins' Young Investigators' Day winners shine in the spotlight

... for his methods to identify the rules that govern folding of RNA molecules. His mentor, biophysicist George Rose, Ph.D., says, "I expect Venk's contributions to change the course of his field." Donna E. Hansel distinguished herself as first author on a study published in The Journal of Neuroscience while...

Human disease gene survey yields underlying principles

...ond proteinfor example, stabilizing, activating or folding another protein; genes that encode receptors; and genes that encode transcription factors. Valle and his colleagues next scored each gene in these four major categories based on the clinical features of the diseaseincluding age of onset, mode of inh...

Molecule plays key role in cellular quality control machinery

...he gene CHIP, whose protein apparently blocked the folding activity of other molecules known as heat shock pr...ovides a direct molecular link between the protein folding and degradation pathways. "Speaking from my perspective of a cardiovascular biologist and cardiolog...

Screensavers of the world, unite!

... ``is its complexity, which renders simulations of folding extremely computationally demanding and difficult ...Roll is now in second place, having reached 10,000 folding days, but it lags far behind the top-ranked team, Nerdz, whose members have clocked 17,000 days - or...

Fighting Fungi

...level of protein production and ensure that proper folding occurs. Schrder and colleagues have demonstrated t... anti-fungal therapies. Drugs which impair protein folding or otherwise activate the UPR may serve as models in the search for new anti-fungal agents....

December Geology and GSA Today highlights

... As an unexposed (blind) thrust fault propagates, folding of the layers of rock is accompanied by earthquakes. The shape of these folds may record how far the fault tip has propagated relative to the amount of displacement of the blocks on either side of the fault. This information can tell us where in the ...

Ancient quakes leave mark from Kentucky to New York

...ormed beds," said Brett. "We see the same kinds of folding and fracturing from Frankfort to Lexington and northeastward to Augusta and Maysville" in Kentucky. The formations can also be found across the Ohio River near Moscow and New Richmond, Ohio. "We're seeing these patterns in an area that covers at leas...

Bio-X grant recipient explores link between molecular chaperones and serious diseases

...linear genetic code into three dimensions, protein folding has been called the second, and more intractable, ...aining life. ``Chaperones prevent proteins from folding prematurely or sticking to debris inside the cell,`` she says. ``Without chaperones, some cells get ...

What are 'life-style' genes?

...s such as components of protein synthesis, protein folding and protein degradation machines exhibit strong si...ll. Protein complexes that are involved in protein folding or protein degradation are shown (not true to scale) in colour....

High-resolution image illuminates catalytic engine of the ribosome

...ch stage at the overwhelming complexity of the RNA folding in the ribosome," said Steitz. "But I think the most surprising observation was that the proteins were embedded among the RNA helices, penetrating into the interior of the ribosome like tentacles." Such penetration of proteins explains why previous ...

Why proteins spiral

... indicate that the dynamics required for the rapid folding of a denatured protein--or other biologically viab...e options for snapping themselves together, so the folding process should be able to proceed more rapidly," says Flavio Seno of the University of Padova and a ...

Northwestern scientists shed new light on neurodegenerative diseases

...In this delicate process, the protein receives its folding instructions from its amino acid sequence and is assisted by a class of proteins known as heat shock proteins or molecular chaperones that function to prevent misfolding, or, in the case of already misfolded proteins, to detect them and prevent their...

HHMI announces selection of 48 new investigators

...s such as genomics, cognitive neuroscience and the folding of biomolecules. They also include a chemist, a physicist and -- for the first time -- an engineer, illustrating the breadth of fields that now contribute to biomedical advances. The 48 new investigators must now be formally appointed. Assuming tha...

Schizophrenia research links form and function

... death. They found that a measurement of cortical folding in the right prefrontal cortex was 7 percent higher in male subjects with schizophrenia, pointing to a neurodevelopmental cause. (“Disturbed Gyrification of the Prefrontal Region in Male Schizophrenic Patients: A Morphometric Postmortem Study...

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