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  • Title: Isolation and characterization of an Azotobacter vinelandii algK mutant.
    Author: Mejía-Ruíz H, Moreno S, Guzmán J, Nájera R, León R, Soberón-Chávez G, Espín G.
    Journal: FEMS Microbiol Lett; 1997 Nov 01; 156(1):101-6. PubMed ID: 9368366.
    Abstract:
    Random Tn5 mutagenesis over Azotobacter vinelandii mucoid strain ATCC 9046 produced strain LA21, a non-mucoid, non-encysting mutant, carrying the Tn5 insertion within a gene homologous to algK from Pseudomonas aeruginosa encoding a periplasmic protein. algK, algJ and algG were shown to be transcribed as part of the palg8-alg44-algK-algJ-algG operon. A non-polar algK mutant was constructed and showed a non-mucoid phenotype, indicating that algK is essential for alginate production.
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