The RA's gone off on a short but well-earned trip to the sun, and before she left she made the H. influenzae hfq knockout I've been waiting for. So yesterday, after clicking 'Submit' on our NSERC grant proposal, I did competence time courses of wildtype cells and the mutant, hoping to see a difference in transformation frequencies (preferably a decrease).
You can read all the background in this post from last March. And here's a hexameric structure for Hfq (from Wikipedia):
The colonies are still too tiny to count, but it looks like the transformation frequency is down about 10-fold in the mutant!
Next step, make some DNA from the mutant so I can introduce the mutation into my hypercompetent mutant backgrounds.
Books read in 2024
5 days ago in The Curious Wavefunction
Hey Rosie, have you seen this yet?
ReplyDeleteThe molecular basis of phosphate discrimination in arsenate-rich environments
If it's not too late, I've got some DNA you could use...
ReplyDeletewould you mind send me the protocol for hfq mutant.
ReplyDelete