TY - RPRT TI - Amplification of the Escherichia coli K 12 arginine bipolar operon: construction in vitro and cloning of a composite colE1-argECBH plasmid. AU - M Crabeel AU - D Charlier AU - N Glansdorff AU - W K Maas PY - 1976 UR - https://pubmed.ncbi.nlm.nih.gov/64174/ ID - 64174 ER -