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All these groups correlate with the associated tertiary structures.

Fibrous proteins are structural in nature, which means they help maintain cell shape by providing a scaffolding or a framework. On the other hand, globular proteins are functional, which means they carry out a specific biological function in the body.

Proteins are informally classified into three primary groups – Fibrous proteins, globular proteins and membrane proteins. All these groups correlate with the associated tertiary structures. In this article, we shall explore the differences between globular proteins and fibrous proteins.

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Difference Between Fibrous Protein and Globular Protein

Structural – which means these proteins helps to maintain cell shape by providing a scaffolding

Functional – this means globular proteins carry out a specific biological function in the body

Haemoglobin, myoglobin, insulin, enzymes

Amino acid sequence is repetitive in nature

Less sensitive to factors such as changes in temperature and pH

More sensitive to temperature and pH