Previous Article Next Article Table of Contents Journal of the American Chemical Society, Vol.125, No.1, 28-29, 2003 DOI10.1021/ja028750r Export Citation Remarkably large positive and negative allosteric effects on ion recognition by the formation of a novel helical pseudocryptand Nabeshima T, Yoshihira Y, Saiki T, Akine S, Horn E Please enable JavaScript to view the comments powered by Disqus.