Correction to my post "Protocol for cloning protospacer adapters...PX330-family #CRISPR plasmids".

There was an error - now corrected - in my previous protocol post  "Protocol for cloning protospacer adapters into Zhang lab PX330-family #CRISPR plasmids.":  I omitted by mistake the instruction to add the ligase enzyme to the ligation reaction. (line II - 2 - e in the protocol).  Duh!    I apologize profusely.