fluorescence titration curves of 2- [ 4'-iodoacetamido ) anilino ) naphthalene-6-sulfonic acid-labeled troponin ( iaans-labeled tn ) and troponin-1-anilinonaphthalene-8-sulfonic acid ( tn-ans ) complex indicated that the fluorescent moiety , iaans or ans , detects conformational change of troponin i ( tni ) or tn due to the ca2+ binding or removal reaction with the low affinity ca2+-binding sites of troponin c ( tnc ) component .
C0041199
troponin
C0077401
troponin i