TY - RPRT TI - Type II restriction endonucleases: structural, functional and evolutionary relationships. AU - R A Kovall AU - B W Matthews PY - 1999 DO - 10.1016/s1367-5931(99)00012-5 UR - https://pubmed.ncbi.nlm.nih.gov/10508668/ ID - 10508668 ER -