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Abstract

The present disclosure relates to recombinant host cells comprising one or more recombinant polynucleotides encoding enzymes in select pathways that provide the ability to use the cells to produce 1,3-butadiene. The present disclosure also provides methods of manufacturing the recombinant host cells, and methods for the use of the cells to produce 1,3-butadiene. The methods utilize recombinant host cells that comprise an engineered pathway of enzymes that provides for the conversion of naturally occurring intermediate crotonyl-CoA (or -ACP) to 1,3-butadiene through enzyme catalyzed steps involving the reduction of glutaconyl-CoA (or -ACP) to form the intermediate 5-hydroxypent-3-enoate. The disclosure provides alternative engineered pathway involving either decarboxylation of 5-hydroxypent-3-enoate directly to 1,3-butadiene, or phosphorylation of 5-hydroxypent-3-enoate followed by a phosphate elimination step catalyzed by a decarboxylase to produce 1,3-butadiene.

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First Claim