Difference between revisions of "Part:BBa K1025003"

Revision as of 15:44, 18 September 2013

Thu-E Mutation Part

iGEM mut part is a plasmid constructed by 2013 iGEM Tsinghua-E team which is used for genome level in vivo high-diversity library construction.

Usage and Biology

In this vector, highly error-prone dnaQ mutant, mutD[1] was cloned downstream of araBAD promoter so that we can control the mutation intensity of the target genome by the concentration of araBAD promoter’s inducer, L-arabinose in a strict manner. And the GFP downstream mutD was to test whether the mutD can be translated.

Functional Parameters

We measured the mutation increase induced by our mut part with the protocol described in our note from. To be brief, by measuring the reversion of rifampinresistance caused by mutation in genome, we accurately determined the mutation rate increase to be as big as four times compared with negative control (either bacteria without mutD or without arabinose input). The data is shown below.

Sequence and Features

Reference

[1] Schaaper, R. M. MECHANISMS OF MUTAGENESIS IN THE ESCHERICHIA-COLI MUTATOR MUTD5 - ROLE OF DNA MISMATCH REPAIR. Proc. Natl. Acad. Sci. U. S. A.85, 8126-8130, doi:10.1073/pnas.85.21.8126 (1988).