Primary structure of chymotryptic subfragments from rabbit skeletal troponin T.

The N-terminal and C-terminal residues as well as amino acid compositions were determined for the chymotryptic subfragments from rabbit skeletal troponin T. The positions of the subfragments in the sequence of troponin T were N-terminal acetylserine-tyrosine-158 for troponin T1 (m.w. 18,700), leucine-159-C-terminal lysine-259 for troponin T2 alpha (m.w. 11,900), and leucine-159-phenylalanine-242 for troponin T2 beta (m.w. 10,200), respectively.