CRISPR: Acquired Bacterial Immune Systems
This is the first episode about the CRISPR system in bacteria, but it won't be the last. Here, I discuss an important paper that proved the acquisition of bacteriophage sequence and integration of that sequence into a CRISPR locus provides bacteria with resistance to the bacteriophage.
2007 (not 2006) paper in Science by Barrangou et al.
https://www.ncbi.nlm.nih.gov/pubmed/17379808?dopt=Abstract