A method of removing a non native nucleotide sequence from {HEAD ~ a target nucleic acid sequence} comprising contacting {TAIL ~ the target} nucleic acid sequence with a modified trans excision splicing Group 
comprising contacting
A method of removing a non native nucleotide sequence from { HEAD ~ a target nucleic acid sequence } comprising contacting { TAIL ~ the target } nucleic acid sequence with a modified trans excision splicing Group
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH