title: Crystallization of cathepsin D.
mesh_terms: D000818:Animals; D002403:Cathepsins / Q000302:isolation & purification* / Q000378:metabolism; D002645:Chickens; D003460:Crystallization; D004591:Electrophoresis, Polyacrylamide Gel; D008099:Liver / Q000201:enzymology
chemical_list: D002403:Cathepsins