Iodoacetic AcidIodoacetatesCysteineHydrocarbons, IodinatedIodoacetamideAlkylationSulfhydryl CompoundsDisulfidesCysteine EndopeptidasesGlycolysisDinitrophenolsSulfhydryl ReagentsHydrogen-Ion ConcentrationKineticsAmino Acid SequenceDithiothreitolCyanidesEndopeptidasesAmino AcidsEthylmaleimideMolecular Sequence DataMolecular WeightBinding SitesTrypsinCysteine ProteasesElectrophoresis, Polyacrylamide GelOxidation-ReductionAdenosine TriphosphateSubstrate SpecificityProtein ConformationMusclesCysteine DioxygenaseCalciumPeptide Fragments