Globular Protein
Globular Protein — A spherical protein with a compact, folded structure that is typically soluble in aqueous environments, as opposed to fibrous proteins.
What Is a Globular Protein?
A globular protein is a compact, roughly spherical protein with a hydrophobic core and hydrophilic surface, soluble in aqueous solution. Most enzymes, receptors, and peptide hormones larger than ~50 residues fold as globular proteins. Peptide drugs often target surfaces or cavities of globular protein targets.
Globular vs. Fibrous
- Globular: Compact, soluble, enzymatic/regulatory functions (albumin, lysozyme, insulin)
- Fibrous: Extended, insoluble, structural functions (collagen, elastin, keratin)
- IDPs: Intrinsically disordered proteins/peptides lack stable globular fold
Frequently Asked Questions
What is Globular Protein?
A spherical protein with a compact, folded structure that is typically soluble in aqueous environments, as opposed to fibrous proteins.
Why is Globular Protein important in peptide research?
Globular Protein is a fundamental concept in structure as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Globular Protein on Wikipedia
- Search Globular Protein on PubChem (NIH)
- Research articles on ScienceDirect