Backbone structure of Yersinia pestis Ail determined in micelles by NMR-restrained simulated annealing with implicit membrane solvation

The outer membrane protein Ail (attachment invasion locus) is a virulence factor of Yersinia pestis that mediates cell invasion, cell attachment and complement resistance. Here we describe its three-dimensional backbone structure determined in decyl-phosphocholine (DePC) micelles by NMR spectroscopy. The NMR structure was calculated using the membrane function of the implicit solvation potential, eefxPot, which we have developed to facilitate NMR structure calculations in a physically realistic environment. We show that the eefxPot force field guides the protein towards its native fold. The resulting structures provide information about the membrane-embedded global position of Ail, and have higher accuracy, higher precision and improved conformational properties, compared to the structures calculated with the standard repulsive potential.

Medienart:

E-Artikel

Erscheinungsjahr:

2015

Erschienen:

2015

Enthalten in:

Zur Gesamtaufnahme - volume:63

Enthalten in:

Journal of biomolecular NMR - 63(2015), 1 vom: 10. Sept., Seite 59-65

Sprache:

Englisch

Beteiligte Personen:

Marassi, Francesca M [VerfasserIn]
Ding, Yi [VerfasserIn]
Schwieters, Charles D [VerfasserIn]
Tian, Ye [VerfasserIn]
Yao, Yong [VerfasserIn]

Links:

Volltext

Themen:

107-73-3
Ail
Ail protein, Yersinia pestis
Bacterial Outer Membrane Proteins
Implicit solvation
Journal Article
Membrane protein
Micelles
NMR
Phosphorylcholine
Research Support, N.I.H., Extramural
Research Support, N.I.H., Intramural
Solvents
Structure
Virulence Factors
Yersinia pestis

Anmerkungen:

Date Completed 20.06.2016

Date Revised 13.11.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s10858-015-9963-2

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM250592118