Journal article
Solution structure of the C-terminal X domain of the measles virus phosphoprotein and interaction with the intrinsically disordered C-terminal domain of the nucleoprotein
Journal of molecular recognition, Vol.23(5), pp.435-447
09/2010
Handle:
https://hdl.handle.net/2376/102834
PMID: 20058326
Abstract
In this report, the solution structure of the nucleocapsid-binding domain of the measles virus phosphoprotein (XD, aa 459-507) is described. A dynamic description of the interaction between XD and the disordered C-terminal domain of the nucleocapsid protein, (N(TAIL), aa 401-525), is also presented. XD is an all alpha protein consisting of a three-helix bundle with an up-down-up arrangement of the helices. The solution structure of XD is very similar to the crystal structures of both the free and bound form of XD. One exception is the presence of a highly dynamic loop encompassing XD residues 489-491, which is involved in the embedding of the alpha-helical XD-binding region of N(TAIL). Secondary chemical shift values for full-length N(TAIL) were used to define the precise boundaries of a transient helical segment that coincides with the XD-binding domain, thus shedding light on the pre-recognition state of N(TAIL). Titration experiments with unlabeled XD showed that the transient alpha-helical conformation of N(TAIL) is stabilized upon binding. Lineshape analysis of NMR resonances revealed that residues 483-506 of N(TAIL) are in intermediate exchange with XD, while the 475-482 and 507-525 regions are in fast exchange. The N(TAIL) resonance behavior in the titration experiments is consistent with a complex binding model with more than two states.
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Details
- Title
- Solution structure of the C-terminal X domain of the measles virus phosphoprotein and interaction with the intrinsically disordered C-terminal domain of the nucleoprotein
- Creators
- Stéphane Gely - Architecture et Fonction des Macromolécules Biologiques (AFMB), UMR 6098, CNRS, France and Universités d'Aix-Marseille I and II, 163 Avenue de Luminy, 13288 Marseille Cedex 09, FranceDavid F LowryCédric BernardMalene R JensenMartin BlackledgeStéphanie CostanzoJean-Marie BourhisHervé DarbonGary DaughdrillSonia Longhi
- Publication Details
- Journal of molecular recognition, Vol.23(5), pp.435-447
- Academic Unit
- Engineering and Applied Sciences (TRIC), School of
- Publisher
- England
- Grant note
- R01 NS031693-11A2 / NINDS NIH HHS
- Identifiers
- 99900546801801842
- Language
- English
- Resource Type
- Journal article