Part:BBa_K325909:Experience

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Applications of BBa_K325909

[http://2012.igem.org/Team:Peking Peking 2012 iGEM team]

We successfully constructed light communication system using this part-luxbrick, and it was the very first time that cells were able to response to very dim bio-luminesence emitted from luxbrick. Also we made supplementary characterization of it. See our project of light communication, please click [http://2012.igem.org/Team:Peking/Project/Communication here] Here are the brief results of our light communication system: The photo below shows that our light sensing cells transformed with our luminesensor BBa_K819005 and corresponding promoter with GFP response to bio-luminescence quite well. The GFP expression is repressed by bio-luminescence, just like it is repressed by blue LED light source, indicating that our luminesensor can detect the bio-luminescence from luxbrick, enabling cell-cell communication through light. Figure 1. The treatment to each group (upper) and response of light sensing cell (lower) this photo shows the light emitting cell transformed with luxbrick in our light-communication system. Figure 2. TOP10 cells transformed with luxbrick from Cambridge 2010 iGEM team Also we made a short video to show the time course of our light communication system. See the video please click [http://www.youtube.com/watch?v=PCORfy8gJxM&feature=player_embedded here] See the detail of our light communicaiton system, please click [http://2012.igem.org/Team:Peking/Project/Communication here] We want to express our gratitude to Cambridge 2010 iGEM team for enabling us to realize cell-cell communication through light.

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User Reviews

••• [http://2012.igem.org/Team:Fudan_Lux 2012iGEM team Fudan_Lux]

Growth curve of K325909 In 2012 iGEM competition we measured growth curve of K325909 in a E.coli strain dH5α. The curve shows that induced by the arabinose, the bacteria growth Check the RAW data of measurement.

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•••• [http://2012.igem.org/Team:Peking/Project/Communication Peking 2012 iGEM team]

We successfully constructed light communication system using this part-luxbrick, and we made supplementary characterization of it. Spectrum We measured the spectrum of luminescence produced by luxbrick. As shown in the spectrum below, the luminescence has a maximum intensity at 485nm. Figure 1. TOP10 cells harboring the luxbrick were cultured in LB medium and induced with L-arabinose at 10-3M. 10 hours after induction, the glowing cells were measured for spectrum using SHIMADZU RF5301PC Spectrofluorophotometer. (Peking iGEM 2012) Time course-video We showed the time course of light emitting process of TOP10 cells transformed with luxbrick in a more visualized way, which is a short video. In the movie, the cells begin to glow 9 hours after induction, and the entire visible glowing process lasts about 10 hours. (Peking iGEM 2012) See the video, please click [http://www.youtube.com/watch?v=fnhe1MKIO9Q&feature=youtu.be here]. (If you can't see the video above, please click [http://v.youku.com/v_show/id_XNDU0NDU0NDcy.html here])

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