TY - RPRT TI - Nucleotide sequences required for Tn3 transposition immunity. AU - J A Kans AU - M J Casadaban PY - 1989 DO - 10.1128/jb.171.4.1904-1914.1989 UR - https://pubmed.ncbi.nlm.nih.gov/2539356/ ID - 2539356 ER -