Coding
AID

Part:BBa_K103001:Experience

Designed by: Michael Lower   Group: iGEM08_Warsaw   (2008-09-14)
Revision as of 03:22, 27 September 2012 by KerstinW (Talk | contribs) (Introduction of mutations to specific region of DNA)

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Applications of BBa_K103001

Increasing intracellular mutation level

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Keton

We have introduced aid gene to E. coli and measured level of mutations using rifampicin test. It works. The results are here:

  • [http://2008.igem.org/wiki/index.php?title=Team:Warsaw/JSTest&num=3&arg0=19_May_2008&arg1=20_May_2008&arg2=21_May_2008&name=Rifampicin%20test%20%231 Rifampicin test #1]
  • [http://2008.igem.org/wiki/index.php?title=Team:Warsaw/JSTest&num=3&arg0=22_May_2008&arg1=23_May_2008&arg2=24_May_2008&name=Rifampicin%20test%20%232 Rifampicin test #2]
  • [http://2008.igem.org/wiki/index.php?title=Team:Warsaw/JSTest&num=3&arg0=28_May_2008&arg1=29_May_2008&arg2=2_June_2008&name=Rifampicin%20test%20%233 Rifampicin test #3]

Introduction of mutations to specific region of DNA

UNIQc31f3b5b1e7b1a8a-partinfo-00000001-QINU

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Keton

We have tested this part in conjunction with T7 polymerase and target gene (lacZ) under T7 promoter in Top10 strain. Although we have obtained white colonies in various experimental setups ([http://2008.igem.org/wiki/index.php?title=Team:Warsaw/JSTest&num=7&arg0=2_June_2008&arg1=5_June_2008&arg2=6_June_2008&arg3=11_June_2008&arg4=12_June_2008&arg5=13_June_2008&arg6=16_June_2008&name=Blue/white%20and%20rifampicin%20test%20%231 #1] and [http://2008.igem.org/wiki/index.php?title=Team:Warsaw/JSTest&num=4&arg0=17_June_2008&arg1=18_June_2008&arg2=19_June_2008&arg3=23_June_2008&name=Blue/white%20and%20rifampicin%20test%20%232 #2]) sequencing revealed no mutations in target region (T7 promoter or lacZ ORF). We have [http://2008.igem.org/wiki/index.php?title=Team:Warsaw/JSTest&num=4&arg0=29_August_2008&arg1=30_August_2008&arg2=31_August_2008&arg3=1_September_2008&name=Blue-white%20screening%20and%20rifampicin%20test%20in%20GM2163 repeated] this experiment in GM2163 strain which is incapable of MutHLS mediated DNA repair due to lack of Dam and Dcm methyltransferases and obtained heritable white phenotype at high frequencies. Unfortunately we have no sequencing data to prove that mutations really occurred.



Expression level and mutation rate of AID

UNIQc31f3b5b1e7b1a8a-partinfo-00000003-QINU

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Potsdam_Bioware 2012

We tried to express this RFC10 part cloned in an expression vector with arabinose promotor and a RBS. No mutation was detected on a target plasmid and no AID overexpression could be seen on an SDS gel. We assume that the distance from the RBS to the ATG start codon is suboptimal due to the distance from the XbaI site to the ATG. We suggest to clone this part as an RFC10 expression part.


UNIQc31f3b5b1e7b1a8a-partinfo-00000005-QINU