Protein Shapes: Globular vs Fibrous

Proteins can have globular or fibrous shapes, and these shapes help explain how they work in the body. Globular proteins are compact and usually fold into rounded forms. Fibrous proteins are long, extended molecules that often provide support and structure.

The shape of a protein is tied to its f...

Proteins have evolved to form quaternary structures and multi-unit complexes when larger molecules are needed by the cell, rather than having longer amino acid chains. Most proteins fall into one of two categories: globular and fibrous.

Globular proteins are compact, with their amino acid chain wound into a spheroid shape. Their secondary...