M13KO7 Helper Phage for Phage rescue
For phage rescue
The phage is an M13mp1 derivative containing a modified gene 11[G changed to T at position 6,125, giving a met to ile change at codon 4NA of the gene 11 protein (1)], an insertion of the origin of replication of p15A and the kanamycin resistance gene from Tn9NA3 at the Ava I site (position 5,825).