IGEM:UNAM-Genomics Mexico/2009/Notebook/Collaborations/2010/08/10
WiFi Coli Collaborations | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page <html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> |
Red light sensor and luciferases
On espère tout aille bien là-bas ;-)
About your progress (by the way kudos on getting anything from M30109), we find it most disturbing that M30109 appears to be distributed as an incomplete part. However, that would explain why so many teams have had a bad experience with it :S About the PCB, best of luck with I15008 & I15009; we've tried many times to obtain anything from those parts but we've been unsuccessful. Since the addition of PCB to the culture is reported to colorize the medium, we fear emergent properties might mess up emission efficiency. We would be most reluctant to add it externally... Please let us know of your progress with ho1 & pcyA. We heard of a particular strain of coli that should produce these genes, but with our Customs woes, we wouldn't have the time to procure it. The reference is here:
Metabolic engineering to produce phytochromes with phytochromobilin, phycocyanobilin, or phycoerythrobilin chromophore in Escherichia coli. FEBS Lett 580:1333–1338.
Tomorrow we'll organize this on our meeting. We also have to re-re-distribute hands to the newly-arrived parts ;-)
Well, that's all, for now. Best regards!
LovTAP, blue promoter, luminometerHello Claudia, here is our small 'progress' with LovTap: It looks like we have stable double transformants with read out system 1 and lovTap, version 09- mutated at pos 427 (Ile-> Phe) seems to grow a bit better. We are repeating our experiments with the daylight and the dark settings; so far clones kept in the dark were more reddish than the one kept in the light- we set up liquid cultures today to check the levels of fluorescence in the luminometer, so we have some numbers to see if it really makes any difference. We are planing our illumination setting; we want to reapeat Lausanne's assay: http://2009.igem.org/wiki/index.php?title=Team:EPF-Lausanne/Protocols/Illumination We also want to illuminate it with green and red light and with all possible combinations of light- to ensure that only blue light will activate it- and so we are planning to buy some LEDs with different wavelengths- but I don't have much details let, as soon as we have it done I'll let you know. We would also look o illuminate it with blue light of different wavelengths with very 'sharp peak, to fully characterise the optimal response, but we'll see how broad spectrum can we actually apply. It's strange that you didn't get any response form Lausanne, the spirit of the competition is to provide the parts for other teams. We'll be happy to send you the parts that you need. Unfortunately, the one that we can't distribute further is trp mutant /commercial strain/, so I hope yours will work ok. We are also very positive about helping you to optimise the promoter- could you actually write on the website what exactly have you don with it? Our luminometer is from 2006, the name of the company is Modulus, we have manual for versions 9200 and 9201- I couldn't find the name of the model on the machine, but it's definitely one of those two. If you think that your device is not working right- I assume it would be very difficult to characterise response from e.g. blue promoter- we are again very happy to help you with characterisation of anything you need. We'll also think about the parts that we would like to use, blue promoter is I think one of them and LyxY the other. Will from our team has written this morning to your team about green light sensor, if you have any further questions just let me or him know :) Thanks a lot for the email and good luck with your lab work! Take care, Marta
|