1,10 phenanthroline article 8 Phenanthrolines 4 X ray crystallography 4 anion exchange chromatography 4 bovine serum albumin 4 casein 4 chemistry 4 controlled study 4 edetic acid 4 hemoglobin 4 n [n (3 carboxyoxirane 2 carbonyl)leucyl]agmatine 4 nonhuman 4 pepstatin 4 unclassified drug 4 1 ,10-phenanthroline 2 1,10-phenanthroline 2 1D chain 2 2,2' bipyridine 2 2,2'-Dipyridyl 2 2,2':6'2'' terpyridine 2 3D networks 2 Adipate complexes 2 Adipates 2 Adipic Acids 2 Adipic acids 2 Amino Acid Sequence 2 Animal 2 Article 2 Aspartic Acid Proteases 2