Correlation analysis of targeted proteins and metabolites to assess and engineer microbial isopentenol production. George, K. W., Chen, A., Jain, A., Batth, T. S., Baidoo, E. E., Wang, G., Adams, P. D., Petzold, C. J., Keasling, J. D., & Lee, T. S. Biotechnology and Bioengineering, 111:1648–58, February, 2014. doi abstract bibtex The ability to rapidly assess and optimize heterologous pathway function is critical for effective metabolic engineering. Here, we develop a systematic approach to pathway analysis based on correlations between targeted proteins and metabolites and apply it to the microbial production of isopentenol, a promising biofuel. Starting with a seven-gene pathway, we performed a correlation analysis to reduce pathway complexity and identified two pathway proteins as the primary determinants of efficient isopentenol production. Aided by the targeted quantification of relevant pathway intermediates, we constructed and subsequently validated a conceptual model of isopentenol pathway function. Informed by our analysis, we assembled a strain which produced isopentenol at a titer 1.5 g/L, or 46% of theoretical yield. Our engineering approach allowed us to accurately identify bottlenecks and determine appropriate pathway balance. Paired with high-throughput cloning techniques and analytics, this strategy should prove useful for the analysis and optimization of increasingly complex heterologous pathways. Biotechnol. Bioeng. 2014;9999: 1-11. (c) 2014 Wiley Periodicals, Inc.
@article{george_correlation_2014,
title = {Correlation analysis of targeted proteins and metabolites to assess and engineer microbial isopentenol production},
volume = {111},
issn = {1097-0290 (Electronic) 0006-3592 (Linking)},
doi = {10.1002/bit.25226},
abstract = {The ability to rapidly assess and optimize heterologous pathway function is critical for effective metabolic engineering. Here, we develop a systematic approach to pathway analysis based on correlations between targeted proteins and metabolites and apply it to the microbial production of isopentenol, a promising biofuel. Starting with a seven-gene pathway, we performed a correlation analysis to reduce pathway complexity and identified two pathway proteins as the primary determinants of efficient isopentenol production. Aided by the targeted quantification of relevant pathway intermediates, we constructed and subsequently validated a conceptual model of isopentenol pathway function. Informed by our analysis, we assembled a strain which produced isopentenol at a titer 1.5 g/L, or 46\% of theoretical yield. Our engineering approach allowed us to accurately identify bottlenecks and determine appropriate pathway balance. Paired with high-throughput cloning techniques and analytics, this strategy should prove useful for the analysis and optimization of increasingly complex heterologous pathways. Biotechnol. Bioeng. 2014;9999: 1-11. (c) 2014 Wiley Periodicals, Inc.},
language = {Eng},
journal = {Biotechnology and Bioengineering},
author = {George, K. W. and Chen, A. and Jain, A. and Batth, T. S. and Baidoo, E. E. and Wang, G. and Adams, P. D. and Petzold, C. J. and Keasling, J. D. and Lee, T. S.},
month = feb,
year = {2014},
pages = {1648--58}
}
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