TY - RPRT TI - Enhancer-activated plasmid transcription complexes contain constrained supercoiling. AU - P J Bonilla AU - S O Freytag AU - L C Lutter PY - 1991 DO - 10.1093/nar/19.14.3965 UR - https://pubmed.ncbi.nlm.nih.gov/1650458/ ID - 1650458 ER -