Smallest size possible for circular DNA?

Matthew David Petroski MDPETROS at UCI.EDU
Fri Apr 11 09:37:05 EST 1997

I was wondering if anyone knew off hand what was the smallest size possible for 
covalently closed circular DNA.  I suppose there would definitely be some 
sequence dependence on getting the smallest possible? I've seen 200 bp circles 
in the literature.  Can you go smaller? 

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