Which of the following is the correct match between the protein and its corresponding prosthetic group?

Options

A. Caesin - Metal
B. Protamines - pigments
C. Catalase - Haem
D. Mucin - Nucleic acid

Answer

To solve the question of matching the protein with its corresponding prosthetic group, we will analyze each option step by step:

### Step 1: Understand the Concept of Prosthetic Groups
- Prosthetic groups are non-amino acid components that are tightly and permanently attached to proteins. They play a crucial role in the biological function of the proteins.

### Step 2: Analyze Each Option
1. **Casein:**
- Casein is a protein found in milk. It does not require a metal or any prosthetic group for its function. Therefore, this option is incorrect.

2. **Protamine:**
- Protamine is a type of protein that is rich in arginine. It does not have a pigment as a prosthetic group. Thus, this option is also incorrect.

3. **Catalase:**
- Catalase is an enzyme that breaks down hydrogen peroxide into water and oxygen. The prosthetic group for catalase is heme, which is indeed correctly matched. This option is correct.

4. **Mucin:**
- Mucin is a high molecular weight protein that is heavily glycosylated and produced from epithelial tissues. It does not have nucleic acid as a prosthetic group. Therefore, this option is incorrect.

### Step 3: Conclusion
- The only correct match between the protein and its corresponding prosthetic group is **Catalase with Heme**.

### Final Answer
The correct match is **Catalase - Heme**.

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