Zobrazeno 1 - 10
of 45
pro vyhledávání: '"J.M. Talent"'
Publikováno v:
Biochemistry. 47:5657-5667
During interaction of actin with myosin, cross-bridges impart mechanical impulses to thin filaments resulting in rotations of actin monomers. Impulses are delivered on the average every tc seconds. A cross-bridge spends a fraction of this time (ts) s
Publikováno v:
Experimental Biology and Medicine. 231:28-38
The ability to measure properties of a single cross-bridge in working muscle is important because it avoids averaging the signal from a large number of molecules and because it probes cross-bridges in their native crowded environment. Because the con
Autor:
Julian Borejdo, Thomas P. Burghardt, J.M. Talent, A. Shepard, D. Dumka, Irina Akopova, Ari Malka
Publikováno v:
Biophysical Journal. 86(4):2308-2317
It is well documented that muscle contraction results from cyclic rotations of actin-bound myosin cross-bridges. The role of actin is hypothesized to be limited to accelerating phosphate release from myosin and to serving as a rigid substrate for cro
Autor:
Susan T. Weintraub, Christina A. Malakowsky, Robert W. Gracy, Craig C. Conrad, J.M. Talent, Joungil Choi, Christopher A. Carroll
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease. 1637:135-141
We have examined the effects of the beta-amyloid peptide (Aβ 25–35 ) on fibroblasts derived from subjects with Alzheimer's disease (AD) and from age-matched controls. The peptide was significantly more cytotoxic to the AD-derived fibroblasts. The
Autor:
Craig C. Conrad, Christina A. Malakowsky, Rong Dai, Susan T. Weintraub, J.M. Talent, Joungil Choi, Robert W. Gracy, Christopher A. Carroll
Publikováno v:
PROTEOMICS. 3:73-77
Oxidative damage to neuronal proteins appears to be central to the toxicity associated with a number of neuropathologies, including Alzheimer's disease. We have examined this by using oxidative stress to induce apoptosis in a mouse hippocampal neuron
Autor:
Priya Muthu, Irina Akopova, Ignacy Gryczynski, Julian Borejdo, Nils Calander, J.M. Talent, Tanya Shtoyko, Zygmunt Gryczynski
Publikováno v:
Journal of biomedical optics. 13(3)
Recent advances in detector technology make it possible to achieve single molecule detection (SMD) in a cell. SMD avoids complications associated with averaging signals from large assemblies and with diluting and disorganizing proteins. However, it r
Autor:
J.M. Talent, P. Muthu, Zygmunt Gryczynski, Irina Akopova, Ignacy Gryczynski, Julian Borejdo, Kirti Jain
Publikováno v:
Analytical biochemistry. 366(2)
Recently it has become possible to study interactions between proteins at the level of single molecules. This requires collecting data from an extremely small volume, small enough to contain one molecule—typically of the order of attoliters (10−1
Publikováno v:
Biochimica et biophysica acta. 1763(2)
In order to measure the cycling of a few ( approximately 6) myosin heads in contracting skeletal muscle, myofibrils were illuminated by Total Internal Reflection and observed through a confocal aperture. Myosin heads rotated at a rate approximately e
Publikováno v:
Journal of muscle research and cell motility. 25(7)
The rotation of myosin heads and actin were measured simultaneously with an indicator of the enzymatic activity of myosin. To minimize complications due to averaging of signals from many molecules, the signal was measured in a small population residi
Publikováno v:
Analytical Biochemistry. 62:281-285
Methods are described which permit the recovery and analysis of peptides at the nanomole level in quantitative yield from cellulose thin layers. Although commercial celluloses are contaminated with significant levels of proteins which are not removed