Retraction for Endoh et al., Purification and identification of p68 RNA helicase acting as a transcriptional coactivator specific for the activation function 1 of human estrogen receptor α
1 Molecular Medicine Laboratories, Institute for Drug Discovery Research, Yamanouchi Pharmaceutical, Tsukuba, Ibaraki, Institute for Molecular and Cellular Biosciences, The University of Tokyo, Bunkyo-ku, Tokyo, and CREST, Japan Science and Technology, Kawaguchi, Saitama, Japan; Institut de Genetique et de Biologie Moleculaire et Cellulaire (IGBMC)/CNRS/INSERM/ULP, College de France, Illkirch, C.U. de Strasbourg, France