4120 Nucleic Acids Research, 2011, Vol. 39, No. 10 the beginning of this work. We also thank Michel Soulard and Luc Chabanne for the gift of the dog anti-hnRNP G sera, Ve´ ronique Della Valle for providing the F4 cDNA clone used for the production of the GST-tagged hnRNP G protein and Nicolas Pollet for providing the xthr17M05 plasmid. The 2D gel electrophoresis was performed in the 2D core facility of the Institut Jacques Monod and Mass spectrometry analysis at the Mass Spectrometry and Proteomics core facility of the Ecole Supe´ rieure de Physique et de Chimie Industrielles de la Ville de Paris. FUNDING Funding for open access charge: Doctoral fellowship from the ministry of health of the Syrian Arab Republic and the French ministry of higher education (to R.K.); the university Paris-Diderot; the Centre National pour la Recherche Scientiﬁque (CNRS). Conﬂict of interest statement. None declared. REFERENCES 1. Hofmann,Y. and Wirth,B. 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