What is a teritary protein? Give an example.

Explanation

### Step-by-Step Solution:

1. **Definition of Tertiary Protein**:
- A tertiary protein refers to the three-dimensional structure of a protein that is formed through the coiling and folding of its polypeptide chains. This structure is crucial for the protein's functionality.

2. **Formation of Tertiary Structure**:
- The tertiary structure arises from various interactions between the amino acid side chains within the protein. These interactions include hydrogen bonds, ionic bonds, van der Waals forces, and hydrophobic interactions.

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