TY - RPRT TI - Multidisciplinary cycles for protein engineering: site-directed mutagenesis and X-ray structural studies of aspartic proteinases. AU - J E Pitts AU - V Dhanaraj AU - C G Dealwis AU - D Mantafounis AU - P Nugent AU - P Orprayoon AU - J B Cooper AU - M Newman AU - T L Blundell PY - 1992 UR - https://pubmed.ncbi.nlm.nih.gov/1455178/ ID - 1455178 ER -