Hi Xun,
I have a 3.2A dataset for a protein-DNA complex. The protein is a
> homodimer, and the DNA is almost palindromic (except one base pair in the
> middle and two or three base pairs at both two ends). It is my first time
> solving structures, and unfortunately the resolution is low. No body in our
> lab has used ccp4 or phenix, so I am really frustrated as a second year
> student.
just in case you want to get some overview/background, see
http://www.phenix-online.org/presentations/latest/pavel_refinement_general.pdf
and low-resolution specific, see pages 49-59.
Pavel.
