the kinetic mechanism of the binding and release of calcium by troponin and by the complexes troponin : tropomyosin , troponin : tropomyosin : actin , and troponin ( tn ) -tropomyosin ( tm ) -actin : myosin subfraction 1 ( sf-1 ) was investigated using troponin labeled on the tn-i subunit with the fluorophore 4- ( n-iodoac etoxyethyl-n-methyl ) -7-nitrobenz-2-oxa-1,3-diazole .
C0041199
troponin
C0077401
tn-i