00300nam a2200121Ia 4500008004100000100001300041245002700054260003500081300001000116490001400126600002100140650001700161140224s9999    xx            000 0 und d  aWu, Ray.  aMethods in Enzymology/  aNew YorkbAcademic Pressc1987  a628p.  av155 pt F  aEdited by Ray Wu  aBiochemistry