[Reduction of the functional activity of the calcium pump of the sarcoplasmic reticulum of skeletal muscles in response to cold].
Fragments of sarcoplasmic reticulum (SR) from the white skeletal muscles of rat in cooling (1.5 day; -9 to +2 degrees C) revealed a decreased activity of the Ca2+-pump and rate of Ca2+ accumulation. The SR from rats adapted to cold for 2 and 4 weeks, revealed the same decreased functional ability. The Ca/ATP ratio was unchanged in all experiments.
D000222:Adaptation, Physiological; D000255:Adenosine Triphosphate / Q000032:analysis; D000818:Animals; D001693:Biological Transport, Active; D002118:Calcium / Q000378:metabolism*; D000252:Calcium-Transporting ATPases / Q000378:metabolism; D003080:Cold Temperature; D009132:Muscles / Q000032:analysis; D011188:Potassium / Q000032:analysis; D051381:Rats; D011919:Rats, Inbred Strains; D012519:Sarcoplasmic Reticulum / Q000378:metabolism*; D012964:Sodium / Q000032:analysis
D000255:Adenosine Triphosphate; D012964:Sodium; D000252:Calcium-Transporting ATPases; D011188:Potassium; D002118:Calcium
Snizhenie funktsional'noĭ aktivnosti kal'tsievogo nasosa sarkoplazmaticheskogo retikuluma skeletnykh myshts pod vliianiem kholoda.