[Microbiology] COUNTERSELECTABLE MARKERS
mfshao at gmail.com
Sun Feb 12 04:49:52 EST 2006
Any one can recommend me some COUNTERSELECTABLE MARKERS for a gram positive
I know SacB is a common one for gram negtive bacteria and can lead to many
However I am now studying a strain from Bacillus spp. is there any
counterpart of SacB in gram positive bacterium?
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