Expression of the desC gene coding for acyl-lipid Δ9 desaturase of thermophilic cyanobacterium Synechocystis sp. PCC6803 was studied in Escherichia coli cells. In a hybrid gene constructed (desC-licBM3), a sequence of the native acyl-lipid Δ9 desaturase was fused in frame with the reporter gene coding for thermostable lichenase. Lichenase contained in the hybrid protein simplified selection and analysis of the expression of membrane desaturase in the heterologous host. Comparisons of the expression for the native and hybrid genes in bacterial cells showed that lichenase remained active and thermostable in the hybrid protein, while desaturase retains the capability of introducing a double bound in the corresponding position of fatty acid residues.
Russian Journal of Genetics – Springer Journals
Published: Feb 24, 2007
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