A generalized strategy for immobilizing uniformly oriented membrane proteins at solid interfaces

Chem Commun (Camb). 2013 Apr 4;49(26):2685-7. doi: 10.1039/c3cc00077j.

Abstract

We have developed a method based on self-assembly of thiols on Au substrates to immobilize membrane proteins at interfaces. Using water soluble nitrilotriacetic acid (NTA)-terminated oligo(ethylene glycol) thiols, a histidine-tagged G protein-coupled membrane receptor (GPCR) was captured in a defined orientation with little nonspecific binding.

Publication types

  • Research Support, American Recovery and Reinvestment Act
  • Research Support, N.I.H., Intramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Ethylene Glycol / chemistry
  • Gold / chemistry
  • Models, Molecular
  • Molecular Structure
  • Nitrilotriacetic Acid / chemistry
  • Receptors, G-Protein-Coupled / chemistry*
  • Solubility
  • Sulfhydryl Compounds / chemistry
  • Surface Properties
  • Water / chemistry

Substances

  • Receptors, G-Protein-Coupled
  • Sulfhydryl Compounds
  • Water
  • Gold
  • Ethylene Glycol
  • Nitrilotriacetic Acid