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complete ligation HELP?! - (Jul/04/2006 )

I have read a couple conversations on different forms of plasmid...and I understand that the nicked circle and relaxed circle are both products of ligation. My question is ...are there any ways to make the ligation complete....into a covalently closed (supercoiled) plasmid....AND
can the nicked and relaxed plasmids transform into bacteria successfully???

My following step transfection into mammalian cells also requires a closed plasmid I believe...or at least that is the best form for it.

Ames

-Ames-

QUOTE (Ames @ Jul 4 2006, 04:32 PM)
I have read a couple conversations on different forms of plasmid...and I understand that the nicked circle and relaxed circle are both products of ligation. My question is ...are there any ways to make the ligation complete....into a covalently closed (supercoiled) plasmid....AND
can the nicked and relaxed plasmids transform into bacteria successfully???

My following step transfection into mammalian cells also requires a closed plasmid I believe...or at least that is the best form for it.

Ames



Okay I am replying to myself...because I realize now that ligation results in closed relaxed and nicked circles that become repaired in the proper host. wink.gif

-Ames-