Composition of cardiac muscle troponin.
Preparations of troponin from cardiac muscle consist of functionally the same subunits as skeletal troponin, that is TN-T, TN-I, and TN-C. Cardiac TN-T and TN-I have, however, higher molecular weights than those of skeletal muscle. Only TN-C from both sources does not differ in respect to the molecular weight, isoelectric point, and ability to bind calcium or strontium.
D000818:Animals; D001665:Binding Sites; D002118:Calcium / Q000378:metabolism; D002417:Cattle; D007526:Isoelectric Point; D008970:Molecular Weight; D009124:Muscle Proteins / Q000032:analysis*; D009132:Muscles / Q000032:analysis*; D009206:Myocardium / Q000032:analysis*; D011817:Rabbits; D013324:Strontium / Q000378:metabolism; D014336:Troponin / Q000032:analysis* / Q000302:isolation & purification / Q000378:metabolism
D009124:Muscle Proteins; D014336:Troponin; D002118:Calcium; D013324:Strontium