Composition of cardiac muscle troponin
Drabikowski, W.; Dabrowska, R.; Barylko, B.
Recent Advances in Studies on Cardiac Structure and Metabolism 5: 245-252
1975
ISSN/ISBN: 0363-5872 PMID: 1188158 Document Number: 85396
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.
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