Fig. 1

Calculation of the interaction score between phage and host sequences. (a) The BLAST search of phage and prokaryote sequences against a reference data set result in (b). Two BLAST lists containing prokaryote matches ordered by decreasing similarity (i.e., bit-score). (c) BLAST lists were converted into rankings of prokaryote species. The ranked lists differ in content: Yersinia rohdei and Y. ruckeri are present in the first ranking list but absent in the second list, while Shigella dysenteriae and Erwinia toletana are only present in the second list. Two species, Y. rohdei and Y. ruckeri, from the first BLAST search have the same scores and are consequently tied for the same rank. (d) An interaction score was calculated between two ranking lists using rank-biased overlap