Correction

BIOCHEMISTRY. For the article “Diabetes-associated mutations in a β-cell transcription factor destabilize an antiparallel ‘mini-zipper’ in a dimerization interface,” by Qing-Xin Hua, Ming Zhao, Narendra Narayana, Satoe H. Nakagawa, Wenhua Jia, and Michael A. Weiss, which appeared in number 5, February 29, 2000, of Proc. Natl. Acad. Sci. USA (97, 1999–2004), the NMR spectroscopic study of the dimerization domain of hepatic nuclear factor 1α proposed a structure that differed from that determined subsequently by x-ray crystallography (1). The authors have now found that some C-terminal nuclear Overhauser effects were misclassified, and this led to an incorrect structure. Their corrected solution topology based on NMR is consistent with x-ray structures of this domain (3).