反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
Reduced nicotinamide adenine dinucleotide phosphate (NADPH), riboflavin, flavin adenine mononucleotide (FMN), flavin adenine dinucleotide (FAD), coenzyme A disulfide, glutathionyl-coenzyme A mixed disulfide, 3'-dephospho coenzyme A, 5,5'-dithio-bis(2-nitrobenzoic acid) (DTNB), lysostaphin, bicinchoninic acid solution, 4% copper sulphate pentahydrate solution, 2',5'-adenosine diphosphate (ADP)-Sepharose®; and phenylmethylsulphonyl fluoride (PMSF) were from Sigma (Mississauga, ON). 3'-dephospho CoA was oxidized to the disulfide by incubation at room temperature overnight in Tris-HCl (20 mM), pH 9.0, containing copper (5 μM). 4,4'-phosphopantetheine was formed by incubation of CoA with nucleotide pyrophosphatase. The thiol was oxidized as described above, and the disulfide was purified by high performance liquid chromatography (HPLC). All other chemicals were of reagent grade or better and were used without further purification.