ampicillin analog?

[Dr. Duncan Clark]

In article <199703130138.UAB171874 at mime4.prodigy.com>, MR ROBERT G
CHAPMAN <bob_chapman at prodigy.com> writes
>We're using an ampicillin based expression system but may be having 
>trouble with scale-up due to ampicillin depletion. My boss remembers 
>seeing an lactamase resistant analog of ampicillin compatable with 
>our AmpR vector. Can anyone provide a refference to such an 
>antibiotic?

Methicillin used with Ampo at a ratio of 80mg Methicillin and 20mg
Ampicillin per litre. Unfortunately the usual source oif Methicillin,
Sigma, has stopped supplying. Ther msut be alternative sources out
there.

Duncan
--

The problem with being on the cutting edge is that you occasionally get 
sliced from time to time....

Dr. Duncan Clark
DNAmp Ltd.
TEl/FAX 01252376288
http://www.dnamp.com
http://www.genesys.demon.co.uk