Modification of the Sunflower Defensin SD2 Gene Sequence and Its Expression in Bacterial and Yeast Cells

Modification of the Sunflower Defensin SD2 Gene Sequence and Its Expression in Bacterial and... To achieve broader range of the defensin antimicrobial activity, based on the sd2 gene sequence, the modified gene, sd2mod, was constructed. Hybrid genes, sd2-licBM2, licBM2-sd2, licBM2-sd2mod, and sd2mod-licBM2, in which the wild-type and modified gene sequences were fused in frame with the reporter gene encoding thermostable lichenase, were constructed. Expression of the wild-type, modified, and hybrid genes was examined in the cells of pro- and eukaryotes. It was demonstrated that these genes were efficiently expressed in the cells of lower eukaryotes, the yeast. Inhibiting effect of the SD2 and SDmod proteins as the components of the hybrid proteins, SD2-LicBM2 and SD2mod-LicBM2, on the growth of the Fusarium culmorum hyphae was similar to that of the wild-type and modified proteins. It was shown that the presence of lichenase in the hybrid proteins facilitated selection and analysis of the hybrid proteins expression in transgenic organisms. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Modification of the Sunflower Defensin SD2 Gene Sequence and Its Expression in Bacterial and Yeast Cells

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2005 by MAIK "Nauka/Interperiodica"
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1007/s11177-005-0219-1
Publisher site
See Article on Publisher Site

Abstract

To achieve broader range of the defensin antimicrobial activity, based on the sd2 gene sequence, the modified gene, sd2mod, was constructed. Hybrid genes, sd2-licBM2, licBM2-sd2, licBM2-sd2mod, and sd2mod-licBM2, in which the wild-type and modified gene sequences were fused in frame with the reporter gene encoding thermostable lichenase, were constructed. Expression of the wild-type, modified, and hybrid genes was examined in the cells of pro- and eukaryotes. It was demonstrated that these genes were efficiently expressed in the cells of lower eukaryotes, the yeast. Inhibiting effect of the SD2 and SDmod proteins as the components of the hybrid proteins, SD2-LicBM2 and SD2mod-LicBM2, on the growth of the Fusarium culmorum hyphae was similar to that of the wild-type and modified proteins. It was shown that the presence of lichenase in the hybrid proteins facilitated selection and analysis of the hybrid proteins expression in transgenic organisms.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Dec 14, 2005

References

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