Papain acts an gamma globulin to form ?
**Core Concept**
Papain is a proteolytic enzyme that breaks down proteins into smaller peptides or amino acids. It is often used to cleave immunoglobulins, specifically **gamma globulins**, into their component parts. This process is useful in various laboratory and medical applications.
**Why the Correct Answer is Right**
Papain acts on **gamma globulins**, also known as immunoglobulins, to form **Fab and Fc fragments**. This is achieved through the cleavage of the immunoglobulin molecule at specific points, resulting in the separation of the antigen-binding (Fab) and crystallizable (Fc) regions. The **Fab fragment** retains the ability to bind to antigens, while the **Fc fragment** interacts with cell surface receptors and complement proteins.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because papain digestion of gamma globulins does not result in the formation of this specific product.
**Option B:** Similarly, this option is incorrect as it does not accurately describe the products of papain digestion of gamma globulins.
**Option D:** This option is also incorrect as it does not represent the correct outcome of papain's action on gamma globulins.
**Clinical Pearl / High-Yield Fact**
Papain's ability to cleave immunoglobulins into **Fab and Fc fragments** is a useful tool in immunology research and diagnostics. This process can help elucidate the structure and function of antibodies and their role in various diseases.
**Correct Answer:** D. Fab and Fc fragments.