Recombinant hosts and methods for manufacturing polyhydroxyalkanoate

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United States of America Patent

PATENT NO 8546125
APP PUB NO 20120214213A1
SERIAL NO

13031350

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Abstract

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Known attempts using engineered bacteria to produce P(3HB-co-4HB) with carbon sources that are structurally unrelated to 4-hydroxybutyrate resulted in relatively low 4HB monomer content of 1.5 to 5 mol %. The current invention provides recombinant hosts for producing P(3HB-co-4HB) wherein the plasmid including succinate semialdehyde dehydrogenase gene (sucD gene) and 4-hydroxybutyrate dehydrogenase gene (4hbD gene) further includes pyruvate decarboxylase promoter (Ppdc). It was found that the 4HB monomer content in P(3HB-co-4HB) is significantly enhanced to be over 20 mol %, in the range of 8.8 to 23 mol %.

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Patent Owner(s)

Patent OwnerAddress
TIANJIN GREENBIO MATERIAL CO LTDTIANJIN 300457

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Guo-Qiang Beijing, CN 2 29
Guo, Ying-Ying Beijing, CN 1 3
Jian, Jia Beijing, CN 1 1
Li, Zheng-Jun Beijing, CN 2 5
Shi, Zhen-Yu Mordialloc, AU 1 1
Wu, Qiong Beijing, CN 119 665

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