Re: [ccp4bb] Protein expression in Minimal media (M9)

2007-04-19 Thread Eric Toth
bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, April 18, 2007 10:34 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Protein expression in Minimal media (M9) Hello everybody, Sorry for an offtopic question. I am trying to express a protein in M9 minimal media

Re: [ccp4bb] Protein expression in Minimal media (M9)

2007-04-19 Thread jwallen
Manish, I also had a similar problem getting cells (C41 (DE3) in my case) to grow in minimal media. To get around this problem, I took cells from an agar plate and grew them in a small volume (5 mL) of the minimal media. Once that culture got thick, I then inoculated 200 mL of minimal media with

Re: [ccp4bb] Protein expression in Minimal media (M9)

2007-04-19 Thread Cynthia Kinsland
Are you adding vitamins to your M9 minimal? RosettaBlue is thiamin requiring and can not grow in the absence of thiamin. The thiamin requirement is so low that you can often get slow growth to a low OD based on residual thiamin in the cells, but you will not get robust growth. Also,

Re: [ccp4bb] Protein expression in Minimal media (M9)

2007-04-19 Thread artem
Manish, Assuming that you need the minimal medium for Se, have you tried the regular heavy atom derivatives? You already have diffracting crystals... M9 medium can be slightly difficult. However, no one says that you *have* to use minimal medium such as M9 (again, assuming that you're doing

Re: [ccp4bb] Protein expression in Minimal media (M9)

2007-04-19 Thread Roger Rowlett
: Thursday, April 19, 2007 10:31 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Protein expression in Minimal media (M9) Manish, Assuming that you need the minimal medium for Se, have you tried the regular heavy atom derivatives? You already have diffracting crystals... M9 medium can