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Upadhyay AK, Rotili D, Han JW, Hu R, Chang Y, Labella D, Zhang X, Yoon YS, Mai A, Cheng X.Upadhyay AK, et al. Among authors: cheng x.J Mol Biol. 2012 Feb 24;416(3):319-27. doi: 10.1016/j.jmb.2011.12.036. Epub 2011 Dec 29.J Mol Biol. 2012.PMID: 22227394Free PMC article.