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Chinese Journal of Biotechnology ; (12): 19-24, 2005.
Article Dans Anglais | WPRIM | ID: wpr-256118

Résumé

Polyhydroxyalkanoates (PHA) were biodegradable thermoplastics. Due to their broad applications, direct biosynthesis of PHA from inexpensive substrates, such as carbohydrates, is actively pursued. It has been recently revealed that (R)-3-hydroxyacyl-ACP: CoA transacylase (PhaG) played an important role in this pathway. In this study, a polymerase chain reaction (PCR) protocol was developed for the rapid and specific identification of phaG gene from various bacteria. Using the PCR strategy, the complete open reading frames of two phaG genes from Pseudomonas stutzeri 1317 and Pseudomonas nitroreducens 0802 were cloned from the genomic DNA and functionally expressed in Pseudomonas putida PHAGN-21. Furthermore, this strategy was successful applied in non-Pseudomonas strains, such as Burkholderia. These results suggest that PhaG-mediated pathway of medium-chain-length polyhydroxyalkanoates was widespread among bacteria.


Sujets)
Acyltransferases , Génétique , Métabolisme , Séquence d'acides aminés , Burkholderia , Génétique , Gènes bactériens , Données de séquences moléculaires , Polyhydroxyalcanoates , Réaction de polymérisation en chaîne , Pseudomonas , Génétique , Alignement de séquences
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