Difference between revisions of "Test Mnt/Tet promoter"

Revision as of 19:49, 2 July 2008

Test Mnt/Tet promoter

The pMnt/TetR promoter is constitutively on and is repressed by the TetR protein. The addition of aTc should repress the TetR causing it to glow. The addition of the Mnt protein should also repress the promoter, causing it to not glow.

1) Test tet repression:

pBAD→RBS+TetR+t+t+pMnt/Tet→RBS+GFP does not glows

I13453+S0101+B0015+K091105+E0240

add aTc

pBAD→RBS+TetR+TT+pMnt/Tet→RBS+GFP glows

I13453+B0034+C0040+B0015+K091105+E0240

2) Test Mnt repression:

pBAD→RBS+Mnt+TT+pMnt/Tet→RBS+GFP glows

I13453+I13025+B0015+K091105+E0240

3) Test Tet and Mnt repression:

pBAD→RBS+TetR+RBS+Mnt+TT+pMnt/Tet→RBS+GFP does not glows

I13453+B0034+C0040+B0034+C0072+B0015+K091105+E0240

add aTc does not glow

Ligation plan for three test sequences

K091105 ligated with E0240

need to ligate pBAD to and RBS

then ligate TetR to the 3' end of that

then ligate TT to the 3' end of that

then ligate that part 5' to the pMnt/Tet+GFP

This will make the first promoter test sequence.

ligate the part RBS+Mnt to the 5' end of the TT

then ligate pBAD to the 5' end of that

then ligate the part pMnt/Tet+RBS+GFP to the 3' end of that

This makes the second promoter test sequence.

ligate the part RBS+Mnt+TT to the 3' end of pBAD+RBS+TetR

then ligate the part pMnt/Tet+RBS+GFP to the 3' end of that

This makes the third promoter test sequence

the first and third test sequences will also need to be tested by adding aTc

the first test sequence should glow and the third should not.