Detergent
Detergent — An amphipathic molecule used to solubilize membrane proteins and peptides, disrupt cell membranes, and prevent non-specific binding in assays.
What Is a Detergent?
A detergent (surfactant) is an amphiphilic molecule with a hydrophobic tail and hydrophilic head that forms micelles above its critical micelle concentration. Detergents are used in peptide research to solubilize membrane-associated peptides, prevent surface adsorption, and lyse cells for peptide extraction.
Common Detergents
- Tween 20/80: Non-ionic. 0.02-0.1% prevents peptide adsorption to plastic/glass. Used in ELISA wash buffer
- Triton X-100: Non-ionic. Cell membrane solubilization for non-denaturing lysis
- SDS: Anionic. Denaturing. SDS-PAGE sample preparation
- CHAPS: Zwitterionic. Mild solubilization of membrane peptides/proteins
Frequently Asked Questions
What is Detergent?
An amphipathic molecule used to solubilize membrane proteins and peptides, disrupt cell membranes, and prevent non-specific binding in assays.
Why is Detergent important in peptide research?
Detergent is a fundamental concept in reagent 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.