Difference between revisions of "Part:BBa K518004:Experience"

Latest revision as of 19:49, 3 October 2011

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Applications of BBa_K518004

User Reviews

UNIQ3ca0573b625316e9-partinfo-00000000-QINU

UT-Tokyo 2011

We worked to show that this part enables bacteria to produce L-aspartate, but failed to do that. In the studies aiming at L-Asp over-production, the amount of L-Asp was determined by HPLC (1,2). We, however, were unable to use this method, so we tried to detect it in alternative ways, including ninhydrin reaction and ultraviolet-visible spectroscopy. For experimental details, see [http://2011.igem.org/Team:UT-Tokyo our result page].

-Reference-

1. Chao, Y. P., Lai, Z. J., Chen, P., & Chern, J. T. (1999). Enhanced conversion rate of L-phenylalanine by coupling reactions of aminotransferases and phosphoenolpyruvate carboxykinase in Escherichia coli K-12. Biotechnol Prog, 15(3), 453-458.

2. Chao, Y., Lo, T., & Luo, N. (2000). Selective production of L-aspartic acid and L-phenylalanine by coupling reactions of aspartase and aminotransferase in Escherichia coli. Enzyme Microb Technol, 27(1-2), 19-25.

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 <I>UT-Tokyo 2011</I>
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-We have worked hard to demonstrate that this part enables bacteria to produce L-aspartate, but could not. Our sequencing results indicated a general sequence agreement, showing only a few mismatching bases. We have tried to detect the L-Asp by either ninhydrin staining or ultraviolet-visible spectroscopy, only to fail. Ninhydrin reactedwith not only amino acid (Asp) but indeed ammonium ion itself, and U-V spectroscopy detected large fumarate noise. We also tried to directly measure intracellular AspA over-expression, but have little days to this work.;
+We worked to show that this part enables bacteria to produce L-aspartate, but failed to do that. In the studies aiming at L-Asp over-production, the amount of L-Asp was determined by HPLC (1,2). We, however, were unable to use this method, so we tried to detect it in alternative ways, including ninhydrin reaction and ultraviolet-visible spectroscopy. For experimental details, see [http://2011.igem.org/Team:UT-Tokyo our result page].
+-Reference-
+. Chao, Y. P., Lai, Z. J., Chen, P., & Chern, J. T. (1999). Enhanced conversion rate of L-phenylalanine by coupling reactions of aminotransferases and phosphoenolpyruvate carboxykinase in Escherichia coli K-12. Biotechnol Prog, 15(3), 453-458.
+. Chao, Y., Lo, T., & Luo, N. (2000). Selective production of L-aspartic acid and L-phenylalanine by coupling reactions of aspartase and aminotransferase in Escherichia coli. Enzyme Microb Technol, 27(1-2), 19-25.
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