to investigate whether 1,25 ( oh ) 2d3 selectively stimulates the de novo synthesis of muscle cell proteins , mixtures of myoblast proteins from control and sterol-treated cultures labelled with [ 14c ] leucine and [ 3h ] leucine , respectively , were separated by sds-polyacrylamide gel electrophoresis and isoelectric focussing .
C0026845
muscle
C0596995
myoblast