Calcium transport by red blood cell membranes from young and adult cattle.
It is shown using inside-out membrane vesicles that cattle red cells extrude calcium by means of a calmodulin sensitive Ca-pump whose activity is high in calves and extremely low in adult cows. The decline is not due to loss of calmodulin susceptibility nor to a drop in Ca-affinity.
A
A
Zimmermann
H J
HJ
Schatzmann
D000255:Adenosine Triphosphate / Q000494:pharmacology; D000375:Aging; D000818:Animals; D001693:Biological Transport, Active / Q000187:drug effects; D000001:Calcimycin / Q000494:pharmacology; D002118:Calcium / Q000097:blood*; D002147:Calmodulin / Q000494:pharmacology; D002417:Cattle; D004910:Erythrocyte Membrane / Q000378:metabolism*; D006801:Humans; D007473:Ion Channels / Q000378:metabolism; D007700:Kinetics
D002147:Calmodulin; D007473:Ion Channels; D000001:Calcimycin; D000255:Adenosine Triphosphate; D002118:Calcium