Figure 5
From: Molecular modeling and characterization of Vibrio cholerae transcription regulator HlyU
The electrostatic surface potential of the Vc-HlyU dimer with blue and red regions indicating positive and negative electrostatic regions, respectively. (a) The DNA-binding surface indicates the highly basic nature of the DNA-binding domains in the two subunits. (b) The molecule is rotated 180° around the long axis showing the opposite surface of DNA-binding region which is predominantly negatively charged and highly acidic.