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handle: 10261/52151
[ES] La presente invención se refiere a una cepa bacteriana de Pseudomonas putida KT2440, que comprende un sistema genético heterólogo lítico donde dicho sistema a su vez comprende la secuencia nucleotídica que codifica la enzima lítica de pared celular endolisina Ejl, la secuencia nucleotídica que codifica la holina Ejh, y una secuencia nucleotídica que codifica un sistema de regulación génica, que a su vez comprende una secuencia nucleotídica promotora de la expresión génica, y una secuencia nucleotídica que codifica y expresa una proteína reguladora de dicha expresión génica. Preferiblemente la cepa es el microorganismo con número de depósito CECT 7659. Además, la presente invención también se refiere a dicha cepa donde el microorganismo Pseudomonas putida KT2440 es mutante en uno o más de los genes tol-pal. Preferiblemente dicha cepa es el microorganismo con número de depósito CECT 7658. Además, la presente invención se refiere al uso de cualquiera de las cepas descritas para la extracción de polihidroxialcanoato (PHA) sintetizado por dicha bacteria así como a un método para la extracción de dicho compuesto.
[EN] The present invention relates to a bacterial strain of Pseudomonas putida KT2440, which includes a lytic heterologous genetic system in which said system in tum includes the nucleotide sequence that encodes the lytic enzyme with endolysin cell wall Ejl, the nucleotide sequence that encodes holin Ejh, and a nucleotide sequence that encodes a gene regulation system, which in turn includes a nucleotide sequence promoting the gene expression, and a nucleotide sequence that encodes and expresses a protein regulating said gene expression. The strain is preferably the microorganism with deposit number CECT 7659. The present invention further relates to said strain in which the Pseudo monas putida KT2440 microorganism is mutant in one or more of the tol-pal genes. Said strain is preferably the microorganism with deposit number CECT 7658. The present invention further relates to the use of any ofthe described strains for extracting polyhydroxyalkanoate (PHA) synthesised by said bacterium as well as to a method for extracting said compound.
A1 Solicitud de patente con informe sobre el estado de la técnica
Consejo Superior de Investigaciones Científicas (España)
Peer reviewed
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