It is the only amino acid having anionizing ‘R’ group with a pK’ near 7 andis important in the active site of someenzymes?

Q.It is the only amino acid having an ionizing 'R' group with a pK' near 7 and is important in the active site of some enzymes?

A. Arginine
B. Cystein
C. Cystine
D. Histidine

Answer - D

Category - Biochemistry

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