Stanford/BIOE44:Module3:Day2:nitrate II: Difference between revisions

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Long Description: We plan to develop a system that can sense a low level of nitrate in water by using a mutant of nitrate-inducible fnr coupled with the narG promoter. While normally only inducible under anaerobic conditions, a single silent mutation to convert leucine-28 to histidine can allow the fnr gene to operate under anaerobic conditions. The fnr gene acts as a promoter for narG, which can send a PoPs-out signal to a GFP reporter. Previous studies have shown that the mutated form of fnr can sense nitrate at as low as 0.1 uM.
Long Description: We plan to develop a system that can sense a low level of nitrate in water by using a mutant of nitrate-inducible fnr coupled with the narG promoter. While normally only inducible under anaerobic conditions, a single silent mutation to convert leucine-28 to histidine can allow the fnr gene to operate under anaerobic conditions. The fnr gene acts as a promoter for narG, which can send a PoPs-out signal to a GFP reporter. Previous studies have shown that the mutated form of fnr can sense nitrate at as low as 0.1 uM.


BBa_narGp001 sequence:
''BBa_narGp001 sequence:''


GAATTC GCGGCCGC T TCTAGA G  
GAATTC GCGGCCGC T TCTAGA G ATCCTAAAGGGGTATCTTAGGAATTTACTTTATTTTTCATCCCCATCACTCTTGATCGTTATCAATTCCCACGCTGTTTCAGAGCGTTACCTTGCCCTTAAACATTAGCAATGTCGATTTATCAGAGGGCCGACAGGCTCCCAC T ACTAGT A GCGGCCG CTGCAG
EcoRI  NotI      Xba1
 
ATCCTAAAGGGGTATCTTAGGAATTTACTTTATTTTTCATCCCCATCACTCTTGATCGTTATCAATTCCCACGCTGTTTCAGAGCGTTACCTTGCCCTTAAACATTAGCAATGTCGATTTATCAGAGGGCCGACAGGCTCCCAC
 
T ACTAGT A GCGGCCG CTGCAG
  SpeI    PstI


The promoter itself does not contain any BioBrick restriction enzyme sites, so this part is in accordance with BioBrick Standard 10.
The promoter itself does not contain any BioBrick restriction enzyme sites, so this part is in accordance with BioBrick Standard 10.

Revision as of 15:15, 4 May 2010

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Nitrate Sensor Project

Authors: Daniel Bui and Aaditya Shidham

Created BioBrick Parts: BBa_fnr001, BBa_narGp001

Long Description: We plan to develop a system that can sense a low level of nitrate in water by using a mutant of nitrate-inducible fnr coupled with the narG promoter. While normally only inducible under anaerobic conditions, a single silent mutation to convert leucine-28 to histidine can allow the fnr gene to operate under anaerobic conditions. The fnr gene acts as a promoter for narG, which can send a PoPs-out signal to a GFP reporter. Previous studies have shown that the mutated form of fnr can sense nitrate at as low as 0.1 uM.

BBa_narGp001 sequence:

GAATTC GCGGCCGC T TCTAGA G ATCCTAAAGGGGTATCTTAGGAATTTACTTTATTTTTCATCCCCATCACTCTTGATCGTTATCAATTCCCACGCTGTTTCAGAGCGTTACCTTGCCCTTAAACATTAGCAATGTCGATTTATCAGAGGGCCGACAGGCTCCCAC T ACTAGT A GCGGCCG CTGCAG

The promoter itself does not contain any BioBrick restriction enzyme sites, so this part is in accordance with BioBrick Standard 10.