Team:DTU-Denmark/Notebook/26 July 2013

From 2013.igem.org

Revision as of 13:59, 1 October 2013 by Ariadni (Talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

26 July 2013

Navigate to the Previous or the Next Entry

Contents

Lab 115


Main purpose

Investigate nitrite stability in anaerobic, untransformed E. coli

Who was in the lab


Helen, Kasia

Procedure


Following Experiment 1a in order to ensure that any produced nitrite from Mutant 1 will not be consumed by any of the pathways in native E. coli.

Results


DTU-Experiment-1a-results.png

Mg of Nitrogen (as Nitrite or Ammonia) per liter measured for varying concentrations of Nitrite added at t=0. All the experiments were performed anaerobically. Samples were measured every 20 min for 3 hours.


Conclusions and Discussion


Under anaerobic conditions, nitrite is consumed and converted to ammonium. Since we want to convert the nitrite to nitrous oxide, a functional prototype will require either that the pathway to nitrous oxide be designed to outcompete this pathway, or that this pathway that consumes nitrite be knocked out (and the transformants grown in a medium containing plentiful ammonium so they do not need to synthesize it).

Lab 208


Main purpose


  • miniprep of TAT, Sec, and Nir for sequencing
  • LB medium preparation (2L)
  • Pick up new PAO1 cultures
  • Make new colony PCR to get Nir from the newly acquired colonies.

Who was in the lab


Kristian, Julia

Procedure


PCRs:

  • pZA21::RFP with primer pair 13 58C and 3:00.
  • araBAD from K808000 with primer pair 12 61C and 1:00
  • Colony PCR with first PAO1 colony but with a gradient of concentrations from 1x to 500x
  • Colony PCR with the 4 new plates of PAO1, concentration x1

Results


See tomorrows gel.

Conclusion


Nothing to conclude from today's work.

Navigate to the Previous or the Next Entry