TY - GEN AU - Spyropoulos,D D AU - Stallard,V AU - Roberts,B E AU - Cohen,L K TI - Utilization of DNA recombination for the two-step replacement of growth factor sequences in the vaccinia virus genome SN - 0022-538X PY - 1991///0919 KW - Base Sequence KW - Blotting, Northern KW - DNA Mutational Analysis KW - Gene Expression Regulation, Viral KW - Genes, Viral KW - Growth Substances KW - genetics KW - Molecular Sequence Data KW - Promoter Regions, Genetic KW - Protein Biosynthesis KW - RNA, Messenger KW - Recombination, Genetic KW - Transcription, Genetic KW - Vaccinia virus KW - Viral Plaque Assay KW - Viral Structural Proteins N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1128/JVI.65.9.4609-4618.1991 ER -