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Team:BostonU/Characterization
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Revision as of 23:13, 2 October 2012
Characterization
Much of the synthetic biology community builds novel genetic constructs from novel DNA parts. The qualitative function of many commonly used parts is well known, but the quantitative behavior of most parts is not well known or documented. There have been recent pushes in the community to develop a standard for quantitative characterization of DNA parts, but there still exists no standard for doing so.
The part characterization problem is multi-dimensional - for one, it is rarely possible to have a single DNA part carry out an observable function without the assistance of other parts. Additionally, it is not widely agreed how to acquire measurements and what conditions are best for characterizing function. There is a need to develop such a methodological standard so that DNA part information can be understood and applied by multiple groups.
Canton et. al 2008 Ellis et. al 2009 Beal et. al 2012
Recent work has been done to accomplish this goal. Some groups have worked towards setting a standard for measuring and sharing part characterization data (Canton et. al 2008) and others have used characterization data for model-guided design (Ellis et. al 2009). Other have explored the ability to get complete transfer curves for chemical induction of various promoters (Beal et. al 2012). However, characterization data is often collected and analyzed in different ways making it difficult to compare and re-use.
Flow cytometry is a technology for recording single-cell measurements of fluorescence. These measurements are taken by passing cells one-at-a-time through the path of a laser and recording the refracted light at with a series of band-pass filters. This allows multiple fluorophores to be measured simultaneously at a single-cell resolution.
A more detailed description of the technology can be found on the BD Biosciences website
[1] T. Ellis et al. “Diversity-‐based, model-‐guided construction...” Nature Biotech 27(5). 2009.
[2] B. Canton et al. “Refinement and standardization...” Nature Biotech 26(7). 2008.
[3] J Beal et al. "A Method for Fast, High-Precision Characterization of Synthetic Biology Devices" MIT-CSAIL-TR-2012-008
