[Seasonal changes in the composition and functions of myosin filaments of the skeletal muscles of ground squirrels Citellus undulatus during hibernation].
The ability of hibernating and arousing ground squirrels' myosins to bind the key enzyme of glycolysis was found to be significantly lower than that of active animals. The findings suggest considerable changes in the myosin heavy and light chain composition occurring during hibernation, as well as a major contribution of the myosin in inhibiting the contractile ability of the skeletal muscles during hibernation.
Lukoianova
N A
NA
Institute of Theoretical and Experimental Biophysics, Russian Acad. Sci., Pushchino, Moscow Region, Russia.
Shpagina
M D
MD
Udal'tsov
S N
SN
Ignat'ev
D A
DA
Kolaeva
S G
SG
Podlubnaia
Z A
ZA
D000222:Adaptation, Physiological / Q000502:physiology*; D000818:Animals; D002118:Calcium / Q000378:metabolism; D006605:Hibernation / Q000502:physiology*; D018482:Muscle, Skeletal / Q000201:enzymology / Q000378:metabolism / Q000502:physiology*; D018995:Myosin Heavy Chains / Q000502:physiology; D018994:Myosin Light Chains / Q000502:physiology; D009218:Myosins / Q000378:metabolism / Q000502:physiology*; D010732:Phosphofructokinase-1 / Q000378:metabolism; D012589:Sciuridae / Q000502:physiology*; D012621:Seasons
D018994:Myosin Light Chains; D010732:Phosphofructokinase-1; D018995:Myosin Heavy Chains; D009218:Myosins; D002118:Calcium
Sezonnye izmeneniia sostava i funktsional'nykh svoĭstv miozinovykh niteĭ skeletnykh myshts zimospiashchikh suslikov Citellus undulatus.