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 | Gesteland, Raymond F.; Atkins, John F.; Wills, Norma M. | -1 frameshifting at a CGA AAG hexanucleotide site is required for transposition of insertion sequence IS1222 | The discovery of programmed _x0001_1 frameshifting at the hexanucleotide shift site CGA_AAG, in addition to the classical X_XXY_YYZ heptanucleotide shift sequences, prompted a search for instances among eubacterial insertion sequence elements. IS1222 has a CGA_AAG shift site. A genetic analysis re... | Hexanucleotides; Heptanucleotides; Frameshifting | 2004 |