Identification of the photocrosslinking sites in troponin-I with 4-maleimidobenzophenone labelled mutant troponin-Cs having single cysteines at positions 158 and 21

Our previous studies have shown that 4-maleimidobenzophenone (BP-Mal) attached to troponin-C (TnC) mutants with single cysteines at positions 12, 57, 89 and 98 forms crosslinks to troponin-I (TnI), and the identified crosslinking regions indicate an antiparallel course of the two interacting polypep...

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