skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reliable and efficient solution of genome-scale models of Metabolism and macromolecular Expression

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep40863· OSTI ID:1347391
 [1];  [2];  [3];  [3];  [4];  [1]
  1. Stanford Univ., CA (United States). Dept. of Management Science and Engineering
  2. Univ. of California, San Diego, CA (United States). Dept. of Bioengineering
  3. Univ. of Luxembourg, Esch-sur-Alzette (Luxembourg). Luxembourg Centre for System Biomedicine
  4. Univ. of California, San Diego, CA (United States). Dept. of Bioengineering; Technical Univ. of Denmark, Horsholm (Denmark). Novo Nordisk Foundation Center for Biosustainability

Currently, Constraint-Based Reconstruction and Analysis (COBRA) is the only methodology that permits integrated modeling of Metabolism and macromolecular Expression (ME) at genome-scale. Linear optimization computes steady-state flux solutions to ME models, but flux values are spread over many orders of magnitude. Data values also have greatly varying magnitudes. Furthermore, standard double-precision solvers may return inaccurate solutions or report that no solution exists. Exact simplex solvers based on rational arithmetic require a near-optimal warm start to be practical on large problems (current ME models have 70,000 constraints and variables and will grow larger). We also developed a quadrupleprecision version of our linear and nonlinear optimizer MINOS, and a solution procedure (DQQ) involving Double and Quad MINOS that achieves reliability and efficiency for ME models and other challenging problems tested here. DQQ will enable extensive use of large linear and nonlinear models in systems biology and other applications involving multiscale data.

Research Organization:
Univ. of Luxembourg, Esch-sur-Alzette (Luxembourg)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010429
OSTI ID:
1347391
Journal Information:
Scientific Reports, Vol. 7; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (28)

Quantitative prediction of cellular metabolism with constraint-based models: the COBRA Toolbox v2.0 journal August 2011
COBRApy: COnstraints-Based Reconstruction and Analysis for Python journal January 2013
Genome-Scale Reconstruction of Escherichia coli's Transcriptional and Translational Machinery: A Knowledge Base, Its Mathematical Formulation, and Its Functional Characterization journal March 2009
A Systems Biology Approach to the Evolution of Codon Use Pattern journal August 2011
On scaling linear programming problems book January 1975
Robust flux balance analysis of multiscale biochemical reaction networks journal July 2013
Exact solutions to linear programming problems journal November 2007
In silico method for modelling metabolism and gene product expression at genome scale journal January 2012
An exact arithmetic toolbox for a consistent and reproducible structural analysis of metabolic network models journal October 2014
Improving the accuracy of linear programming solvers with iterative refinement conference January 2012
Iterative Refinement for Linear Programming journal July 2016
Large-scale linearly constrained optimization journal December 1978
BiGG Models: A platform for integrating, standardizing and sharing genome-scale models journal October 2015
Multiscale Modeling of Metabolism and Macromolecular Synthesis in E. coli and Its Application to the Evolution of Codon Usage journal September 2012
A practical anti-cycling procedure for linearly constrained optimization journal August 1989
A genome‐scale metabolic reconstruction for Escherichia coli K‐12 MG1655 that accounts for 1260 ORFs and thermodynamic information journal January 2007
Functional Characterization of Alternate Optimal Solutions of Escherichia coli's Transcriptional and Translational Machinery journal May 2010
The final NETLIB-LP results journal March 2004
Conditions for duality between fluxes and concentrations in biochemical networks journal November 2016
What is flux balance analysis? journal March 2010
Computationally efficient flux variability analysis journal September 2010
solveME: fast and reliable solution of nonlinear ME models journal September 2016
On Wolfe's Method for Resolving Degeneracy in Linearly Constrained Optimization journal January 2014
Steepest-edge simplex algorithms for linear programming journal May 1992
Genome‐scale models of metabolism and gene expression extend and refine growth phenotype prediction journal January 2013
SNOPT: An SQP Algorithm for Large-Scale Constrained Optimization journal January 2005
Solving staircase linear programs by the simplex method, 1: Inversion journal December 1982
Conditions for duality between fluxes and concentrations in biochemical networks preprint January 2015

Cited By (9)

Machine learning applied to enzyme turnover numbers reveals protein structural correlates and improves metabolic models journal December 2018
The ETFL formulation allows multi-omics integration in thermodynamics-compliant metabolism and expression models journal January 2020
Cellular responses to reactive oxygen species are predicted from molecular mechanisms journal July 2019
The genetic basis for adaptation of model-designed syntrophic co-cultures journal March 2019
COBRAme: A computational framework for genome-scale models of metabolism and gene expression journal July 2018
Systems Biology and Multi-Omics Integration: Viewpoints from the Metabolomics Research Community journal April 2019
Kinetic profiling of metabolic specialists demonstrates stability and consistency of in vivo enzyme turnover numbers journal September 2020
Biopython: freely available Python tools for computational molecular biology and bioinformatics journal March 2009
DynamicME: dynamic simulation and refinement of integrated models of metabolism and protein expression journal January 2019

Similar Records

solveME: fast and reliable solution of nonlinear ME models
Journal Article · Thu Sep 22 00:00:00 EDT 2016 · BMC Bioinformatics · OSTI ID:1347391

Do genome-scale models need exact solvers or clearer standards?
Journal Article · Wed Oct 14 00:00:00 EDT 2015 · Molecular Systems Biology · OSTI ID:1347391

A fast algorithm for power system optimization problems using an interior point method
Journal Article · Fri May 01 00:00:00 EDT 1992 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States) · OSTI ID:1347391

Related Subjects