FIGURE 2.
Overview of PaHigA-PhigBA complex structure. (A) Overall crystal structure of PaHigA in complex with a 28-bp DNA duplex derived from PhigBA at 3.14 Å resolution. The four protein protomers are labeled using the subscripts A–D in green, cyan, magenta and pink, respectively. The central and two semi-palindromic sequences of the DNA are shown in orange and yellow, respectively, and the other regions were shown in gray. (B) The molecular surface representation of the complex with a 90° rotation from (A) (blue, +7.9 KT; red, –7.9 KT), colored by its local electrostatic potential. (C) Conformational comparison of the 28-bp DNA duplex (orange) and canonical B-DNA (blue).