Exploiting metagenomic diversity for novel polyhydroxyalkanoate synthases: production of a terpolymer poly(3-hydroxybutyrate-co-3-hydroxyhexanoate-co-3-hydroxyoctanoate) with a recombinant Pseudomonas putida strain.

Abstract excerpt

A metagenomic library of 2.1×10(6) clones was constructed using oil-contaminated soil from Gujarat (India). One of the fosmid clones, 40N22, encodes a polyhydroxyalkanoate synthase showing 76% identity with an Alcaligenes sp. synthase. The corresponding gene was expressed in Pseudomonas putida KT2440 ΔphaC1 which is impaired in PHA production. The gene conferred the recombinant strain PpKT-40N22 with the ability...

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