Abstract
A comparison of the primary structures of the protein translocation Sec-system proteins in the Shewanella oneidensis MR-1 and Escherichia coli bacteria was carried out. The process of translocation of recombinant pro-enteroxins (SEB and SEH) from Staphylococcus aureus and pro-streptavidin (SAV) from Streptomyces avidinii in the S. oneidensis MR-1 and E. coli cell periplasm was studied. It was demonstrated that these marker proteins are transferred into the periplasmic space of the S. oneidensis MR-1 transformant strain cells. The identity of N-terminal amino acid sequences of mature recombinant SEB, SEH, and SAV proteins (generated during post-translation proteolysis of leader peptide by the Sec-system both in E. coli and S. oneidensis MR-1) was established.
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