We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleIntervening sequences of regularly spaced prokaryotic repeats derive from foreign genetic elements.AuthorsMojica FJ; Díez-Villaseñor C; García-Martínez J; Soria EPublicationJournal of molecular evolution, 2005, Vol 60, Issue 2, p174ISSN0022-2844Publication typearticleDOI10.1007/s00239-004-0046-3