TY - RPRT TI - Multiple steps in DNA recognition by restriction endonuclease from E. coli K. AU - R Yuan AU - T A Bickle AU - W Ebbers AU - C Brack PY - 1975 DO - 10.1038/256556a0 UR - https://pubmed.ncbi.nlm.nih.gov/1101070/ ID - 1101070 ER -