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Environmental Arginine Controls Multinuclear Giant Cell Metabolism and Formation

Nature Communications (in press).

Study authors

J.S. Brunner, L. Vulliard, M. Hofmann, M. Kieler, A. Lercher, A. Vogel, M. Russier, J. Brüggenthies, M. Kerndl, V. Saferding, B. Niederreiter, A. Junza, A. Frauenstein, C. Scholtysek, Y. Mikami, K. Klavins, G. Krönke, A. Bergthaler, J.J. O’Shea, T. Weichhart, F. Meissner, J. S. Smolen, P. Cheng, O. Yanes, J. Menche, P. J. Murray, O. Sharif, S. Blüml* and G. Schabbauer*.

Correspondence to: gernot.schabbauer(at)meduniwien.ac.at and stephan.blueml(at)meduniwien.ac.at.

Data availability

Proteomics and transcriptomics data were deposited on public repositories and are necessary to reproduce the analyses.
The RNA-seq data (BAM alignments and feature counts) have been deposited in NCBI's Gene Expression Omnibus (Edgar et al., 2002) and are accessible through GEO Series accession number GSE125101.
The proteomics data have been deposited in the ProteomeXchange Consortium via the PRIDE repository (Vizcaino et al., 2016) and are acessible through dataset identifier PXD012405.

Code summary

Several R Jupyter notebooks are provided and were used to perform the analyses shown in the corresponding paper.
All absolute paths used here and in the notebooks must be adapted to your own configuration.

RNA-seq analysis

Counts were generated using the countExons.R script. The corresponding feature counts are available from the GEO repository as well.
See RNA-DiffEq.ipynb.

Proteomics analysis

As described in the methods section of the article, the MS data were processed in Perseus (filtered for coefficients of variation bigger across conditions than between replicates, converted to z-score and compared with t-test between conditions of interest).
See MS-analysis.ipynb for downstream analysis.

Integration

See DifferentialIntegration.ipynb.
The transcriptomics and proteomics results were integrated using the OmicsIntegrator (v0.3.1) with the following parameters:

python2.7 /Users/lvulliard/bin/OmicsIntegrator-0.3.1/scripts/garnet.py --outdir="recArg1_output" recArg1_garnet.cfg
python2.7 /Users/lvulliard/bin/OmicsIntegrator-0.3.1/scripts/forest.py --prize=recArg1_prot.tsv --edge=mousePPI.tsv --conf=forest.cfg --outpath=recArg1_output --msgpath=/Users/lvulliard/bin/msgsteiner-1.3/msgsteiner --garnet=/Users/lvulliard/OneShotProject/RecArg1/OmicsIntegratorRun/recArg1_output/events_to_genes_with_motifsregression_results_FOREST_INPUT.tsv --noisyEdges 50

python2.7 /Users/lvulliard/bin/OmicsIntegrator-0.3.1/scripts/garnet.py --outdir="ranklDiff_output" ranklDiff_garnet.cfg
python2.7 /Users/lvulliard/bin/OmicsIntegrator-0.3.1/scripts/forest.py --prize=ranklDiff_prot.tsv --edge=mousePPI.tsv --conf=forest.cfg --outpath=ranklDiff_output --msgpath=/Users/lvulliard/bin/msgsteiner-1.3/msgsteiner --garnet=ranklDiff_output/events_to_genes_with_motifsregression_results_FOREST_INPUT.tsv --noisyEdges 50

The configuration files for Garnet and Forest (suffix in .cfg) are provided with this repository. The other files are generated using the notebooks provided, in which the corresponding depencies are detailed.
NB: the events_to_genes_with_motifsregression_results_FOREST_INPUT.tsv files generated by Garnet need convertion to accepted mouse gene symbols before running Forest, or the effect of the transcriptomics changes are greatly neglected.

The Python notebook InfomapNetwork.ipynb was used to detect communities on the integrated networks using the version 1.0.0b15 of the Python package. Then, functional enrichments in each cluster were tested in the InfomapAnalysis.ipynb R notebook.

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