Which of the Following Is NOT a Characteristic Exhibited by Troponin

question 15

Multiple Choice

Which of the following is NOT a characteristic exhibited by troponin C (TnC) ?

• A)TnC has 2 binding sites that are always complexed to Ca²⁺.
• B)A conformational change in TnC occurs on Ca²⁺ binding.
• C)Ca²⁺ binding to TnC decreases interaction between TnI and actin.
• D)TnC has 4 equivalent Ca²⁺ binding sites

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