All of the following features are associated with Myosin head of heavy meromyosin ( HMM ) of muscle Protein, except

Options

A. Myosin binding site
B. ATP binding site
C. Actin binding site
D. ATPase enzyme activity

Answer

To solve the question regarding the features associated with the Myosin head of heavy meromyosin (HMM) of muscle protein, we will analyze the options provided and determine which feature does not belong to the Myosin head.

### Step-by-Step Solution:

1. **Understand the Structure of Myosin**:
- Myosin is a contractile protein found in muscle tissue. It is primarily composed of two types of proteins: heavy meromyosin (HMM) and light meromyosin (LMM).
- HMM consists of a globular head and a tail. The head is crucial for muscle contraction.

2. **Identify the Functions of the Myosin Head**:
- The globular head of HMM has several important functions:
- It acts as an ATPase enzyme, meaning it can hydrolyze ATP to release energy.
- It has a binding site for ATP, which is essential for muscle contraction.
- It also has a binding site for actin, which is necessary for forming cross-bridges during muscle contraction.

3. **Evaluate the Options**:
- Look at the options given in the question. We need to identify which feature does not belong to the Myosin head of HMM.
- For instance, if one of the options states that the binding site of myosin is present in HMM, this would be incorrect because the binding site for myosin is not associated with HMM itself but rather with the actin filament.

4. **Determine the Correct Answer**:
- Based on the analysis, if an option suggests that the binding site of myosin is part of HMM, this is the feature that does not belong to the Myosin head of heavy meromyosin. Thus, this option would be the correct answer.

5. **Final Conclusion**:
- The correct answer is the option that indicates the binding site of myosin, as it is not a feature of the heavy meromyosin head.