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The Addition of Nitric Oxide to the Sulfhydryl Groups of Certain

Question 95

Multiple Choice

The addition of nitric oxide to the sulfhydryl groups of certain cysteine residues in a number of proteins,including hemoglobin,Ras,ryanodine channels and caspases alters the activity,turnover or interactions of the proteins.This posttranslational modification is called _______.


A) S-nitrosylation
B) SH-nitrosylation
C) sulfhydration
D) nitrofruition
E) nitric acidification

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