All DNA uptake sequence (DUS) positions in Z2491 were excluded from the histogram. DUSp, DUS proximity.Copyright information:Taken from "The impact of the neisserial DNA uptake sequences on genome evolution and stability"http://genomebiology.com/2008/9/3/R60Genome Biology 2008;9(3):R60-R60.Published online 26 Mar 2008PMCID:PMC2397512.