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Transcriptional control of Clostridium autoethanogenum using CRISPRi.

ABSTRACT: Gas fermentation by Clostridium autoethanogenum is a commercial process for the sustainable biomanufacturing of fuels and valuable chemicals using abundant, low-cost C1 feedstocks (CO and CO₂) from sources such as inedible biomass, unsorted and nonrecyclable municipal solid waste, and industrial emissions. Efforts toward pathway engineering and elucidation of gene function in this microbe have been limited by a lack of genetic tools to control gene expression and arduous genome engineering methods. To increase the pace of progress, here we developed an inducible CRISPR interference (CRISPRi) system for C. autoethanogenum and applied that system toward transcriptional repression of genes with ostensibly crucial functions in metabolism.

SUBMITTER: Fackler N

PROVIDER: S-EPMC8062849 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Transcriptional control of Clostridium autoethanogenum using CRISPRi.

Fackler Nicholas N Heffernan James J Juminaga Alex A Doser Damien D Nagaraju Shilpa S Gonzalez-Garcia R Axayacatl RA Simpson Séan D SD Marcellin Esteban E Köpke Michael M

Synthetic biology (Oxford, England) 20210210 1

Gas fermentation by Clostridium autoethanogenum is a commercial process for the sustainable biomanufacturing of fuels and valuable chemicals using abundant, low-cost C1 feedstocks (CO and CO2) from sources such as inedible biomass, unsorted and nonrecyclable municipal solid waste, and industrial emissions. Efforts toward pathway engineering and elucidation of gene function in this microbe have been limited by a lack of genetic tools to control gene expression and arduous genome ...[more]

PMID: 33928195

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