Question

Which of the following catalyzes ADP-ribosylation of a diphthamide residue?

a.

Chloramphenicol

b.

Cycloheximide

c.

Diphtheria toxin

d.

Ricin

Answer: (c).Diphtheria toxin

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Q. Which of the following catalyzes ADP-ribosylation of a diphthamide residue?

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