TY - RPRT TI - Bacteriophage lambda-E. coli K12 vector-host system for gene cloning and expression under lactose promoter control: I. DNA fragment insertion at the lacZ EcoRI restriction site. AU - C Pourcel AU - C Marchal AU - A Louise AU - A Fritsch AU - P Tiollais PY - 1979 DO - 10.1007/bf00337792 UR - https://pubmed.ncbi.nlm.nih.gov/107392/ ID - 107392 ER -