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COoperation and COmpetition potentials in MIcrobial COmunities

Project description

CoCoMiCo : COoperation and COmpetition in MIcrobial COmmunities

CoCoMiCo aims at characterising the metabolism of microbial communities through genome-scale metabolic networks: it calculates cooperation and competition potentials for the communities. It has two modes:

  • a regular mode: cooperation and competition potentials are computed for a community whose associated genome-scale metabolic networks are located in a directory: (run mode)
  • a benchmark mode: run can be performed systematically for a collection of microbial communities described in a json file

CoCoMiCo can be tested on toy data using the following command: cocomico toys.

Install

Required Python >= 3.7. The main dependency of CoCoMiCo is an Answer Set Programming (ASP) solver. Clyngor permits the connection between Python and ASP, whereas Clyngor_with_clingo provides the solver binaries in the Python environment. If you work in a conda environment, installing the solvers directly (clingo) makes it unnecessary to install Clyngor_with_clingo.

pip install cocomico

or

python setyp.py install

or after cloning this repository

pip install .

If you use CoCoMiCo, please cite:

Lecomte M, Muller C, Badoual A, Falentin H, Sherman DJ, and Frioux C. 2023. CoCoMiCo: metabolic modelling of cooperation and competition potentials in large-scale bacterial communities.

Usage

Single community run

run needs the specific architecture as follow:

Community_folder
├── species_1.sbml
├── species_4.sbml
├── species_10.sbml

Metabolic network file in the community_folder can be in either .xml or .sbml format. run mode creates the json community in the appropriate format described in the section benchmark.

usage: cocomico run [-h] [-folder_path FOLDER_PATH] [-seed_path SEED_PATH] [-output OUTPUT]

optional arguments:
  -h, --help            show this help message and exit
  -i, -folder_path FOLDER_PATH, --folder_path FOLDER_PATH
                        Directory path of a community composed of sbml or xml files.
  -s, -seed_path SEED_PATH, --seed_path SEED_PATH
                        path of seed file
  -o, -output OUTPUT, --output OUTPUT
                        output path

Exemple of execution

cocomico run -folder_path PATH_COMMUNITIES_FOLDER -seed_path PATH_SEED_FILE -output PATH_OUTPUT

Multiple runs: benchmarking mode

benchmark needs the genome-scale metabolic networks used for community construction to be stored in a directory and a json file describing the composition of each sample as follow. For example:

Folder_input
├── communities.json
├── sbml
│   └── species_1.sbml
│   └── species_4.xml
|    ..

`communities.json`` must be in the following format:

{
    "com_0" :[
            species_1.sbml,
            species_4.xml,
            species_10.sbml
    ],
    "com_1" :[
            species_12.xml,
            species_120.sbml
    ]
}

Here, sample com0 is composed of three species: species_, species_4 and species_10.

usage: cocomico benchmark [-h] [-json_com JSON_COM] [-seed_path SEED_PATH] [-sbml_path SBML_PATH] [-output OUTPUT]

optional arguments:
  -h, --help            show this help message and exit
  -j, -json_com JSON_COM, --json_com JSON_COM
                        path of the json file
  -s, -seed_path SEED_PATH, --seed_path SEED_PATH
                        path of seed file
  -i, -sbml_path SBML_PATH, --sbml_path SBML_PATH
                        folder path to find sbml model
  -o -output OUTPUT, --output OUTPUT
                        output path

Exemple of execution

cocomico benchmark -json_com PATH_COMMUNITIES_JSON_FILE -seed_path PATH_SEED_FILE -sbml_path PATH_SBML_DIRECTORY -output PATH_OUTPUT

toys

usage: cocomico toys [-h] [-output OUTPUT]

optional arguments:
  -h, --help            show this help message and exit
  -o, -output OUTPUT, --output OUTPUT
                        output path

Output

In a folder community_scores, the output is a json file as follow:

{
    ""metabolite production value (delta)": 31,
    "metabolite production value_metric": {
        "added value community": 17,
        "all individual can produce": 14
    },
    "cooP": 18.0,
    "cooP_metric": {
        "number of exchanged metabolites": 8,
        "pi producers": 8.5,
        "pi consumers": 9.5
    },
    "reaction production(rho)": 58,
    "reaction production_metric": {
        "added value comunity": 37
    },
    "comP": 3.25,
    "comP_metric": {
        "total number of limited subtrates": 13
    },
    "bacteria": [
        "Com2Org1",
        "Com2Org4",
        "Com2Org2",
        "Com2Org3"
    ]
}

In addition, a scores.tsv file is generated, in the output directory, containing all information about the communities:

  • ComP and Coop are respectively the competition and the cooperation potentials.
  • rh is a score describing the gain of activated reactions in the interacting community with respect to activated reaction in a non-interacting community
  • delt is a score describing the gain of producible metabolites in the interacting community with respect to activated reaction in a non-interacting community
  • com_siz describes the size of the corresponding community ie the number of genome-scale metabolic networks
  • nb_exc_cpd denotes the putative number of metabolic exchanges in the community
  • CooP_producers and CooP_consumers calculate respectively the number of producers and consumers of exchanged metabolites, applying an exponential decrease to the score each time a metabolite is produced (respectively consumed) by more than one member.
delta cooP rho comP com_size nb_exc_cpd cooP_producers cooP_consumers
0 22 10.0 40 2.66 3 4 4.5 5.5
1 31 18.0 58 3.25 4 8 8.5 9.5

Version

CoCoMiCo version 0.2.1

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