the simplest explanation of the new observation that the sh groups of egg albumin can be modified by reactions with the native form of the protein is that the native egg albumin has free and accessible but relatively unreactive sh groups which can react with iodine and iodoacetamide despite the fact that they do not react with ferricyanide , porphyrindin , or nitroprusside .
C0033684
protein
C0001924
albumin