A Synthetic Peptide Destroys Brain Plaque Implicated in Alzheimer's Disease
...ed the region of the amyloidprotein that regulates folding but contained certain amino acids unable to adoptt...et breaker peptides can be used toprevent abnormal folding of proteins implicated in conditions such as mad cowdisease....Biochemists Gain Crystal-Clear Insight into 'Ancient' Enzyme
...s been believed such proteins wereonly involved in folding the RNA, and not really involved in catalysis. "But these data suggest that the end of the pre-tRNA snakes throughthat cleft, with the protein directly contacting the pre-tRNA. This is reallya very different mechanism for what these proteins do," sa...Crystal Structure Of The Archaeal Chaperonin Thermosome, A Protein-Folding Machine, Determined
...fulfill central tasks in living organisms. Protein folding - the process in which they acquire their nativ...s, the chaperones, has evolved that rescues the folding intermediates from aggregation. A special kind of chaperones are double-ring, oligomeric conta...Insights Into The Proteasome - A Fascinating Macromolecular Machine For Protein Degradation
...terminus, it also serves to support the initial folding of <font face="Symbol">b -subunits. Two complexes are found to associate with the 20S proteasome. The 11S regulator, or PA28, binds to the outer rings of the proteasome and modulates its activity; the biological function ...Technique Gives Researchers New Look At Genetic Activity In Living Cells
...ly willlead to insights into chromosome movements, folding and unfolding duringnatural events such as cell di...fibers 100 nanometers in diameter in live cells as folding and unfoldingoccurs. Belmont's group has seen specific bending and motion of chromosomal fibers. UC...Presence Of Protein Extends Life; Potential Aging Mechanism Found
...many "chaperone" proteins, which promote theproper folding and shaping of other proteins during biological processes.Molecular chaperones, such as hsp70 or "heat-shock proteins," are thought tocombat stress-related damage to protein function caused by exposure to heat orcold. The researchers think fruit fl...Fast Measurement Technique Reveals Early Steps In Protein Folding
... "We are able to witnessthe early steps in protein folding that are being missed by other techniques." Under...teins in an aqueous solution.Then, to initiate the folding sequence, the solution is heated rapidly bya single pulse from an infrared laser. As the proteins be...