Noun
amidation (plural amidations)
(organic chemistry) Reaction with, or formation of an amide
The C-terminal carboxylate group of a polypeptide can also be modified, e.g., Fig. 3 C-terminal amidation * amidation (see Figure) :The C-terminus can also be blocked (thus, neutralizing its negative charge) by amidation. Source: Internet
Penams and cephems are cyclized oxidatively (first row); clavams and carbapenems are closed by ATP-utilizing amidation (second and third row); and some monobactams may be closed by a third method (fourth row). Source: Internet