Editing C-terminus (section)

==Chemistry==
Each amino acid has a carboxyl group and an [[amine]] group. Amino acids link to one another to form a chain by a [[dehydration reaction]] which joins the amine group of one amino acid to the carboxyl group of the next. Thus polypeptide chains have an end with an unbound carboxyl group, the C-terminus, and an end with an unbound amine group, the [[N-terminal end|N-terminus]]. Proteins are naturally synthesized starting from the N-terminus and ending at the C-terminus.<ref>{{cite web |last1=Alberts |first1=Bruce |last2=Johnson |first2=Alexander |last3=Lewis |first3=Julian |last4=Raff |first4=Martin |last5=Roberts |first5=Keith |last6=Walter |first6=Peter |title=From RNA to Protein |url=https://www.ncbi.nlm.nih.gov/books/NBK26829/#:~:text=Consequently%2C%20a%20protein%20is%20synthesized,a%20peptidyl%2DtRNA%20molecule). |website=Molecular Biology of the Cell. 4th edition |publisher=Garland Science |language=en |date=2002}}</ref>