Results 211 to 220 of about 665,603 (263)

Testosterone and Muscle Protein Metabolism

Mayo Clinic Proceedings, 2000
This presentation discusses recent investigations into testosterone's effects on muscle protein metabolism. Protein synthesis is the principal end point, but protein breakdown and the availability of an amino acid pool are important to the process of net muscle protein synthesis.
R, Wolfe, A, Ferrando, M, Sheffield-Moore, R, Urban   +3 more
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Muscle proteins — their actions and interactions

Current Opinion in Structural Biology, 1996
Muscle contracts by the myosin cross-bridges "rowing' the actin filaments past the myosin filaments. In the past year many structural details of this mechanism have become clear. Structural studies indicate distinct states for myosin S1 in the rigor, ATP or "down' conformation and in the products complex (ADP.Pi) or "up' to state.
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Heat Coagulation of Muscle Proteins

Nature, 1945
A CHANGE in pH when proteins are denatured has been reported by other workers1,2. When making observations of the change in pH of meat resulting from heat coagulation, we were struck both by the magnitude and by the variability of the change. Muscle is a highly buffered system3, and a change such as that observed, for example, from 5·6 to 5·9 ...
E C, BATE-SMITH, J R, BENDALL
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Insulin and protein synthesis in muscle

Archives of Biochemistry and Biophysics, 1970
Abstract Insulin stimulates in vitro the incorporation of labeled amino acid into muscle protein. A study of this phenomenon has been carried out in which various incubation conditions have been varied. The insulin stimulatory effect is lost when sodium ion is removed from the medium, when the amino acid concentration of the medium is increased to ...
S, Goldstein, W J, Reddy
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Electrophoresis of avian muscle proteins

British Poultry Science, 1978
1. The electrophoretic patterns of water-soluble proteins of avian muscle showed differences due both to species and to muscle type. 2. Each muscle pattern within a species showed a unique protein band which distinguished that species from other species.
C C, Wilkinson, J M, Jones
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The action of a muscle proteinase on the myofibrillar proteins of bovine muscle

Journal of the Science of Food and Agriculture, 1974
AbstractMyofibrillar proteins from bovine muscle have been treated with a Ca2+ activated muscle proteinase and the consequent changes in these proteins have been examined by various techniques. Tropomyosin, α‐actinin and troponin were substrates for the enzyme, the last losing its property of inhibiting actomyosin ATPase in the absence of Ca2+ ions ...
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Muscle proteins and muscular dystrophy

Current Opinion in Cell Biology, 1989
In recent years, muscle biology has been transformed by the use of recombinant DNA technology. A result of this approach of great practical importance is the localization on the human X-chromosome of the site of mutation(s) causing Duchenne muscular dystrophy (DMD). DMD is a devastating disease causing degeneration of skeletal muscle fibres and leading
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In vitro Methylation of Muscle Proteins

Nature, 1969
3-METHYL HISTIDINE is a normal amino-acid component of myosin from adult muscle1 and of actin1,2. But whereas 3-methyl histidine occurs in actin isolated from adult and foetal muscle it is absent from myosin isolated from skeletal muscle of the foetal rabbit.
M F, Hardy, S V, Perry
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Muscle Intermediate Filament Proteins

2004
Publisher Summary Intermediate filaments (IFs) appear to function as mechanical integrators of cellular space and provide the overall cytoskeletal integrity and strength, as well as the organization, necessary for supporting contraction. The five muscle cell IF proteins include desmin, vimentin, synemin, paranemin (avian)/nestin (mammalian ortholog),
Richard M, Robson, Ted W, Huiatt, Robert M, Bellin   +2 more
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Transcriptional control of muscle proteins

Trends in Cardiovascular Medicine, 1991
The development of a muscle cell from a precursor cell involves a massive adjustment of gene expression such that over 50 previously silent genes are expressed to produce the muscle proteins required for contractile functions. In differentiated muscle, hormonal and physiologic stimuli modify the expression of these proteins primarily at the level of ...
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