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Genetic interaction mapping informs integrative structure determination of protein complexes

Integrative Structure Determination using data from point mutant epistatic miniarray profile PubMed logo

crossWarning: these files have not yet been verified to work with the latest version of IMP. We will update this page when they have been. The files are also available at GitHub.
Additional software needed to use these files: IMP numpy MODELLER install instructions

Anaconda logo To install the software needed to reproduce this system with the Anaconda Python command line tool (conda), run the following commands:

conda config --add channels salilab
conda install imp numpy modeller

UCSF logo To set up the environment on the UCSF Wynton cluster to run this system, run:

module load Sali
module load imp python3/numpy modeller

Data and code for Integrative Structure Determination using data from point mutant epistatic miniarray profile (pE-MAP).

pE-Map data

The clustered pE-MAP for the histones and correlation maps are available in the supplementary data of [].

The yeast RNAPII pE-MAP is available in the supplementary materials of [].

The bacterial RNAP point mutation data are available in the supplementary materials of [].

pE-Map restraint

Four files are included in the restraint directory:

Use the file to copy the pEMAP restraint files into the IMP directory. The file needs to be edited to indicate the path your local IMP directory. Additionally, edit the file modules/isd/pyext/swig.i-in to add the following lines:

IMP_SWIG_OBJECT(IMP::isd, PEMAPRestraint, PEMAPRestraints);
%include "IMP/isd/PEMAPRestraint.h"

Make sure to re-compile the code after adding the files.

Modeling of the H3-H4 dimer

Data for simulations (directory modeling_histones/data)

Data used for modeling includes:

  1. Script and alignments to generate comparative models.

  2. Comparative models of H3 and H4

  3. Processed pE-MAP data file containing the pairs of residues to which the pE-MAP distance restraints will be applied. The format of these files is:

protein1 protein2 residue1 residue2 MIC_value distance_in_xray_structure (if known)
  1. Python scripts to shuffle and resample the pE-MAP data files

Running the simulations (directory modeling_histones/modeling)

Analysis of simulations (directory modeling_histones/analysis)

The analysis uses the PMI_analysis module in:


  2. Get the rmf3 files for a random sampled of 30,000 structures in the ensemble. These structures are split into two sets (sample_A, sample_B)


Modeling of RNAP II

Modeling of Bacterial RNAP II

Other files


Author(s): Ignacia Echeverria, Hannes Braberg

Date: November 24th, 2020

License: LGPL. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Last known good IMP version: build info build info

Testable: Yes

Parallelizeable: Yes

Publications: Braberg, H., Echeverria, I., Bohn, S., Cimermancic, P., Shiver, A., Alexander, R., Xu, J., Shales, M., Dronamraju, R., Jiang, S. and Dwivedi, G., Bogdanoff D., Chaung K. K., Hüttenhain R., Wang S., Mavor D., Pellarin R., Schneidman D., Bader J. S., Fraser J. S., Morris J., Haber J. E., Strahl B. D., Gross C. A., Dai J., Boeke J. D., Sali A., Krogan N. J. 2020. Genetic interaction mapping informs integrative structure determination of protein complexes. Science, 370(6522). []