Scientists have identified a new, longer species of amyloid â-peptide that has the potential to be a new target for the treatment of Alzheimers disease. The research appears as the "Paper of the Week" in the December 3 issue of the Journal of Biological Chemistry, an American Society for Biochemistry and Molecular Biology journal.
One of the characteristic features of Alzheimers disease is the deposition of amyloid â-peptides in the brain. These amyloid â-peptides are derived from a large amyloid precursor protein through a series of cleavage events. Under normal conditions, cleavage first by á-secretase and then by ã-secretase results in a soluble ectodomain, a short peptide called p3, and an intracellular C-terminal domain, none of which are amyloidogenic. Alternatively, amyloid precursor protein can be processed by the enzymes â-secretase and ã-secretase to produce a soluble ectodomain along with the full-length amyloidogenic amyloid â-peptide and the intracellular C-terminal domain.
Although amyloid precursor protein is found in many cells, its normal biological function is not well understood. "It has been suggested that amyloid precursor protein may function as a receptor or growth factor precursor," notes Dr. Xuemin Xu of The University of Tennessee. "Recent studies also suggest that the intracellular C-terminal domain of the amyloid precursor protein may function as a transcription factor."
Study identifies RNA molecule that shields breast cancer stem cells from immune system
23.05.2017 | Princeton University
“Pregnant” Housefly Males Demonstrate the Evolution of Sex Determination
23.05.2017 | Universität Zürich
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...
Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
23.05.2017 | Event News
22.05.2017 | Event News
17.05.2017 | Event News
23.05.2017 | Earth Sciences
23.05.2017 | Life Sciences
23.05.2017 | Physics and Astronomy