Structure and dynamics of detergent-solubilized M13 coat protein (an integral membrane protein) determined by 13C and 15N nuclear magnetic resonance spectroscopy
- 1 January 1990
- journal article
- research article
- Published by Canadian Science Publishing in Biochemistry and Cell Biology
- Vol. 68 (1), 318-329
- https://doi.org/10.1139/o90-044
Abstract
The major coat protein of the filamentous bacteriophage M13 is inserted as an integral protein in the inner membrane of the Escherichia coli host upon infection. M13 coat protein is an ideal model membrane protein and has been the target of many biophysical studies. An overview is presented here of the application of nuclear magnetic resonance spectroscopy to the study of the structure and dynamics of M13 coat protein in several lipid-mimetic environments. The coat protein may be biosynthetically enriched with 13C- and 15N-labelled amino acids, allowing the resolution and assignment of individual nuclei. Structural fluctuations at selected sites have been monitored using 13C relaxation and isotope-detected amide hydrogen exchange kinetics. A model is proposed for the structure of a coat protein dimer in detergent micelles.Key words: protein dynamics, hydrogen-exchange kinetics, membrane protein, 13C- and 15N-NMR, isotope labels.This publication has 3 references indexed in Scilit:
- Backbone dynamics of a model membrane protein: assignment of the carbonyl carbon carbon-13 NMR resonances in detergent-solubilized M13 coat proteinBiochemistry, 1987
- Individual amide proton exchange rates in thermally unfolded basic pancreatic trypsin inhibitorBiochemistry, 1985
- Amide proton exchange in proteins by EX1 kinetics: studies of the basic pancreatic trypsin inhibitor at variable p2H and temperatureBiochemistry, 1985