Fiche publication


Date publication

janvier 2008

Auteurs

Membres identifiés du Cancéropôle Est :
Dr MORAS Dino , Dr RUFF Marc


Tous les auteurs :
Cura V, Gangloff M, Eiler S, Moras D, Ruff M

Résumé

The ligand-binding domain (LBD) of human oestrogen receptor alpha was produced in Escherichia coli as a cleavable thioredoxin (Trx) fusion in order to improve solubility. Crystallization trials with either cleaved and purified LBD or with the purified fusion protein both failed to produce crystals. In another attempt, Trx was not removed from the LBD after endoproteolytic cleavage and its presence promoted nucleation and subsequent crystal growth, which allowed the structure determination of two different LBD-ligand-coactivator peptide complexes at 2.3 A resolution. This technique is likely to be applicable to other low-solubility proteins.

Référence

Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Jan 1;64(Pt