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Team:HKU-Hong Kong/Parts
From 2011.igem.org
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By expressing the tetR:H-NS fusion proteins, the tetR part of the proteins wound recognize and specifically bind to the tetR binding region (tetO2). There are two tet-R binding sites as tet-R form a dimer as in the tet repressor- operator system. As the fusion proteins bound to tet-O, it is expected that the H-NS part of the fusion protein would attract and oligomerize with other native H-NS proteins inside the cell. With the oligomerization of the fusion proteins and native H-NS, the DNA covered by the oligomers is expected to trap the RNA polymerase during transcription, thus gene (GFP) repression is achieved. | By expressing the tetR:H-NS fusion proteins, the tetR part of the proteins wound recognize and specifically bind to the tetR binding region (tetO2). There are two tet-R binding sites as tet-R form a dimer as in the tet repressor- operator system. As the fusion proteins bound to tet-O, it is expected that the H-NS part of the fusion protein would attract and oligomerize with other native H-NS proteins inside the cell. With the oligomerization of the fusion proteins and native H-NS, the DNA covered by the oligomers is expected to trap the RNA polymerase during transcription, thus gene (GFP) repression is achieved. | ||
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Revision as of 16:17, 5 October 2011
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By expressing the tetR:H-NS fusion proteins, the tetR part of the proteins wound recognize and specifically bind to the tetR binding region (tetO2). There are two tet-R binding sites as tet-R form a dimer as in the tet repressor- operator system. As the fusion proteins bound to tet-O, it is expected that the H-NS part of the fusion protein would attract and oligomerize with other native H-NS proteins inside the cell. With the oligomerization of the fusion proteins and native H-NS, the DNA covered by the oligomers is expected to trap the RNA polymerase during transcription, thus gene (GFP) repression is achieved. |
