Results 221 to 230 of about 6,676 (255)
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Dissociation of Light Chains from Cardiac Myosin
European Journal of Biochemistry, 1978The substrate, ATP, protects the active site of cardiac myosin during a 10‐min treatment at 37°C and neutral pH in the absence of divalent cations; under these conditions there is an approximate 20% dissociation of light chain C1 and 60% loss of light chain C2 with no corresponding decrease in myosin ATPase activity. Higher temperatures, the absence of
M, Higuchi +4 more
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Cardiac Myosin in Heart Overloading
1981The heart, like most types of tissues, can adapt to envirommental factors and, more specifically, to its load. Overloading a heart as well as changing its initial length may increase work by means of two successive adaptational processes: (1) immediately by bringing the muscle’s own mechanical properties into play and (2) at a later stage by changing ...
B. Swynghedauw +5 more
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Hormonal influences on cardiac myosin ATPase activity and myosin isoenzyme distribution
Molecular and Cellular Endocrinology, 1984It has been recognized for a long time that changes in hormone secretion can influence cardiac function; however, the biochemical basis for these changes has only recently been clarified. In this review the influences of hormonal status on the contractile protein myosin is discussed. Myosin has a rod-like portion and a globular head and consists of two
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Segmental flexibility of cardiac myosins.
Acta physiologica Hungarica, 1997Conventional and saturation transfer electron paramagnetic resonance spectroscopy (EPR and ST EPR) and differential scanning calorimetry (DSC) were used to study the motional dynamics and structural stability of cardiac myosins. Cardiac myosins isolated from bovine and human heart muscle were spin-labelled with a maleimide- or an iodoacetamide-based ...
J, Belágyi, U, Hoffmann, D, Lörinczy
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Cardiac myosin and autoimmune myocarditis.
Ciba Foundation symposium, 1988Infection with type 3 of the group B Coxsackieviruses (CB3) sometimes leads to the development of myocarditis in humans. Circumstantial evidence in the form of heart-reactive antibodies in these cases of human myocarditis suggests that the later phases of the disease may be due to autoimmunization. Since human myocarditis is a relatively rare sequel to
N R, Rose +7 more
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Methylation of canine cardiac myosin in culture
Experientia, 1980N epsilon, N epsilon, N epsilon, trimethyllysine and an unidentified methylated amino acid which co-electrophoresed and co-chromatographed with the hydrolysis product of S-adenosyl-L-methionine, occur in fetal canine cardiac myosin and are isotopically labeled in vitro with S-adenosyl-L-(methyl 3H) methionine between the 10th and 12th day of culture.
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[Cardiac myosins and myocardial contraction].
Giornale italiano di cardiologia, 1987The contractile properties of cardiac muscle cells are determined by the molecular composition of the contractile apparatus and in particular by the structure of myosin. Three isoforms of myosin heavy chains have been recently identified in the mammalian heart: alpha and beta myosin heavy chains, present in atrial and ventricular myocardium, and nodal ...
S, Schiaffino, L, Gorza
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Purification of cardiac myosin
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1975Kathleen T. Shiverick +2 more
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Cardiac myosin during hibernation
Journal of Molecular and Cellular Cardiology, 1992Morano, I. +3 more
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