I have a DNA sequence which has predictability to form G quadruplex . I need a software to generate a pdb of it which will form G quadruplex. I am using open Babel but I am not able to set the coordinates.
fortunately yes and I use it a lot: 3D-NuS webserver by Indian Institute of Technology Hyderabad (https://iith.ac.in/3dnus/Quadruplex.html). To the best of my knowledge, this is the only user-friendly G4 sequence ->structure modeling tool.