Q4.3- For each of the five major protein types in eukaryotic cells 1) provide a specific example of a protein in each class, 2) describe its primary function, and 3) identify cellular locations where you would find this specific protein (nucleus, cytosol, membranes).
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
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Functional Classes of Proteins
Q4.3- For each of the five major protein types in eukaryotic cells 1) provide a specific example of a protein in each class, 2) describe its primary function, and 3) identify cellular locations where you would find this specific protein (nucleus, cytosol, membranes).
Proteins can be classified into different types based on their function, chemical nature, nutritional importance, and solubility.
Based on the function, they are classified into:
- Structural proteins
- Catalytic proteins
- Transport proteins
- Storage proteins
- Defense proteins
- Hormonal proteins
- Receptor proteins
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