Explain what can you infer about the role of the cys

Reference no: EM13275345

Sulfhydryl groups can react with the alkylating reagent N-ethylmaleimide (NEM). When NEM is added to a solution of creatine kinase, Cys 278 is alkylated, but no other Cys residues in the protein are modified. What can you infer about the role of the Cys 278 residue based on this information?

Reference no: EM13275345

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