Important Protein Comparison

Feature

Fibrous Proteins

Globular Proteins

Shape

Long, thread-like fiber structures

Folded into compact spherical shapes

Solubility

Insoluble in water

Soluble in water

Stabilization

Strong intermolecular H-bonds and disulfide bonds

Intramolecular hydrogen, ionic, & van der Waals forces

Examples

Keratin (hair, nails), Myosin (muscles), Collagen

Insulin, Hemoglobin, Serum Albumin