title: Crystalline holotryptophanase from Proteus rettgeri.
mesh_terms: D000645:Ammonium Sulfate; D002852:Chromatography, Ion Exchange; D003460:Crystallization; D004589:Electrophoresis, Disc; D006882:Hydroxyapatites; D008025:Ligases / Q000302:isolation & purification*; D008623:Mercaptoethanol; D008970:Molecular Weight; D011511:Proteus / Q000201:enzymology*; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D014368:Tryptophanase / Q000302:isolation & purification*; D014461:Ultracentrifugation; D014465:Ultrasonics
chemical_list: D006882:Hydroxyapatites; D008623:Mercaptoethanol; D014368:Tryptophanase; D008025:Ligases; D000645:Ammonium Sulfate