E. coli host strain for transformation

?=4~$^ tyhsiao at dcbpost.dcb.org.tw
Tue Aug 6 20:07:27 EST 1996


I need an E. coli host strain that is ampicillin sensitive AND tryptophan  
 auxotroph for  transformation of a shuttle vector isolated from yeast  
 cell.  Any suggestion?  Thanks.  



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