the phosphorylase b labelled with 2,2,6,6-tetramethyl-piperidine-1-oxyl-4-iodacetamide ( phosphorylase i ) and with 2,2,6,6-tetramethyl-piperidine-1-oxyl-4-ethylmaleinimide ( phosphorylase ii ) was studied .
C0031711
phosphorylase b
C0017916
phosphorylase