Fig. 3.

The pat gene cluster (A) and GC skew (B). Colored genes represent those that can have a function assigned. White genes are those that have no significant homolog; blue genes contains protease activity. The G+C% skew below is altered where a coding region is present, as is common in many species and suggests that the gene predictions are correct (53). Additionally, the increase of the G+C% in this area suggests that this region may have been transferred into this species by means of horizontal gene transfer.