The RESOLVE database doesn't have RNA+protein in it, nor does it have low-resolution histograms, but you can create a new entry very easily. Here is how:
1. Find a PDB structure that has the characteristics that you want "refine_1.pdb"
2. Calculate a map with this model at the resolution you are interested in:
3. Generate histograms with phenix.resolve. Here is a script:
4. Now the file hist_values.dat will have your histograms:
5.002693 32.71021 ! resolution Boverall
1 ! 1=protein 2 = solvent
0.10198E-01 1.8145 0.41525E-01 ! a1 a2 a3
0.14425E-01 0.46920 0.77521 ! a4 a5 a6
0.23653E-06 0.34718E-08 0.0000 ! a7 a8 a9
2 ! 1=protein 2 = solvent
0.27101E-01 6.4460 -0.61802 ! a1 a2 a3
0.12788E-01 0.55421 -0.39797E-02 ! a4 a5 a6
0.0000 0.0000 0.0000 ! a7 a8 a9
5. Paste the contents of hist_values.dat at the end of $PHENIX/solve_resolve/ext_ref_files/segments/rho.list . NOTE: you need one blank line between sections, and an extra 2 blank lines at the very end of the file...otherwise resolve will give a bad error message.
6. Now when you run phenix.resolve...say "database 7" and it will use your new histograms. It will write a message in the log file like this:
Histogram DB entry # 7 ("5 14.27721 ! resol")
which should match what you pasted in to the rho.list file...so you know it took your histograms.
All the best,
Tom T