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  • Title: Comparison of the nucleotide sequences of the genes for the thermostable direct hemolysin and the thermolabile hemolysin from Vibrio parahaemolyticus.
    Author: Taniguchi H, Hirano H, Kubomura S, Higashi K, Mizuguchi Y.
    Journal: Microb Pathog; 1986 Oct; 1(5):425-32. PubMed ID: 3508495.
    Abstract:
    The nucleotide sequences of genes encoding the thermostable direct (TSD) hemolysin and the thermolabile (TL) hemolysin of Vibrio parahaemolyticus were determined. From the nucleotide sequence of the TSD hemolysin gene, it was revealed that the preprotein and the mature protein consisted of 189 amino acids and 165 amino acids, and that the molecular weights were 21.1 kDa or 18.5 kDa, respectively. Our data regarding TSD hemolysin were in complete agreement with previously published data. From the nucleotide sequence of the TL hemolysin gene, it was revealed that the preprotein and the mature protein consisted of 418 amino acids and 398 amino acids, and that the molecular weights were 47.5 kDa and 45.3 kDa, respectively. The GC content of the TSD hemolysin gene was 35.6%, while that of the TL hemolysin gene was 47.6% which is almost the same as that of V. parahaemolyticus genome. Maxicell analysis revealed that the molecular weights of the proteins encoded by the TSD hemolysin gene were 22.0 and 19.5 kDa, and that of the protein encoded by the TL hemolysin gene was 45.5 kDa, and that the promoters of these two hemolysin genes of V. parahaemolyticus were functional in Escherichia coli.
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