title: Affinity precipitation of lactate dehydrogenase with a triazine dye derivative: selective precipitation of rabbit muscle lactate dehydrogenase with a procion blue H-B analog.
abstract: A simple methoxylated derivative of the triazine dye, Procion blue H-B, selectively precipitates rabbit muscle lactate dehydrogenase from solution. Optimum protein precipitation occurred at an enzyme subunit:dye ratio of approximately 2:1 and was fully reversible upon addition of competitive ligands such as NADH. With a crude extract of rabbit muscle, affinity precipitation with the dye followed by dissolution with NADH yielded homogeneous lactate dehydrogenase in 97% overall yield.
mesh_terms: D000818:Animals; D011232:Chemical Precipitation; D004591:Electrophoresis, Polyacrylamide Gel; D007770:L-Lactate Dehydrogenase / Q000302:isolation & purification*; D009132:Muscles / Q000201:enzymology*; D011817:Rabbits; D013329:Structure-Activity Relationship; D014227:Triazines
chemical_list: D014227:Triazines; C012842:Cibacron Blue F 3GA; D007770:L-Lactate Dehydrogenase