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dycone's Introduction

Build Status wercker status codecov DOI

dycone

...analyze enzyme regulation with metabolome data

What does it do?

Dycone ("dynamic cone") allows you infer enzymatic regulation from metabolome mesurements. It employs formalisms based on flux and k-cone analysis to connect metabolome data to distinct regulations of enzyme activity. Most of the analysis methods can be applied to genome-scale data.

Attribution

If you use dycone in your academic work you may use the following paper for a citation

Diener C, Muñoz-Gonzalez F, Encarnación S, Resendis-Antonio O.
The space of enzyme regulation in HeLa cells can be inferred from its intracellular metabolome.
Sci Rep. 2016 Jun 23;6:28415. doi: 10.1038/srep28415. PubMed PMID: 27335086.

Installation

External dependencies

Even though dycone can be installed directly via R as described in the following section, some of its dependencies require the installation of packages via your package manager. Under Debian and Ubuntu you can install those dependencies via

sudo apt-get install libcurl4-openssl-dev libssl-dev libgmp-dev

In case you do not have R installed you will also need to install it via

sudo apt-get install r-base r-base-dev

R package

The package can be installed directly from github by using devtools:

install.packages("devtools")
devtools::install_github("cdiener/dycone")

This will also install all required dependencies and you are good to go :)

You can start using the package by importing it:

library(dycone)

Docs

Documentation can be found using the included help in R (?function_name for instance). An example using the Human Red Blood Cell model can be found in the package vignette "eryth":

vignette("eryth")

For an exhaustive example you can look at the Rmarkdown generated protocol at https://github.com/cdiener/kcone-paper.

Roadmap

To see planned changes to dycone please consult the project milestones.

dycone's People

Contributors

cdiener avatar jelana avatar

Stargazers

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Watchers

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Forkers

resendislab

dycone's Issues

Allow predefined fluxes in hyp

Allow passing a set of fluxes for each measurement that will be used. Also clarify what actually happens for type = "bias".

Faster LP solvers

Right now dycone uses asolver already contained in the rcdd package. However, it is based on converting everything to fractions and using an exact solver based on rational arithmetic. This is great for numeric stability but also slow. A better option would be to enable several backends for float-based solvers, peferably CLP and CPLEX/GUROBI. FVA should also be converted to the "fast" version using warm starts.

Faster vertex enumeration

Vertex enumeration in its current form can not handle larger models (>100 reactions) in reasonable time. Some alternative methods would be better. As a first step porting LRS to R could help...

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