Biosynthesis of poly (3-mercaptopropionate) and poly (3-mercaptopropionate-co-3-hydroxybutyrate) with recombinant Escherichia coli.
- Author:
Shuang-Jiang LIU
1
;
Tina LÜTKE-EVERSLOH
;
Alexander STEINBÜCHEL
Author Information
1. Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, China. shuangjiang@hotmail.com
- Publication Type:Journal Article
- MeSH:
3-Hydroxybutyric Acid;
chemistry;
3-Mercaptopropionic Acid;
chemistry;
Acyltransferases;
genetics;
metabolism;
Escherichia coli;
genetics;
metabolism;
Gas Chromatography-Mass Spectrometry;
Models, Biological;
Molecular Weight;
Phosphate Acetyltransferase;
genetics;
metabolism;
Phosphotransferases (Carboxyl Group Acceptor);
genetics;
metabolism;
Plasmids;
Polymers;
chemistry;
metabolism;
Spectrophotometry, Infrared
- From:
Chinese Journal of Biotechnology
2003;19(2):195-199
- CountryChina
- Language:English
-
Abstract:
Polythioesters newly emerged as a type of novel polymer and they have showed great potential for application in industries. In this study, genes of butyrate kinase (buk) and phosphotransbutyrylase (ptb) from Clostridium acetobutylicum, and poly (3-hydroxybutyrate) (PHB) synthase gene from Thiocapsa pfennigii were used for construction of a metabolic pathway to synthesize the polythioesters. When 3-mercaptopropionate and 3-hydroxybutyrate were fed, poly (3-mercaptopropoinate) [poly (3MP)] and poly(3-mercaptopropionate-co-3-hydroxybutyrate) [poly(3MP-co-3HB)] were synthesized by recombinant Escherichia coli JM109 (pBPP1) harboring the constructed metabolic pathway. Results indicated clearly that all these genes are necessary for the synthesis of poly(3MP) and poly(3MP-co-3HB).
