We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA single spacer nucleotide determines the specificities of two mRNA regulatory proteins.AuthorsOpperman L; Hook B; DeFino M; Bernstein DS; Wickens MPublicationNature structural & molecular biology, 2005, Vol 12, Issue 11, p945ISSN1545-9993Publication typearticleDOI10.1038/nsmb1010