Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Otú ha si agafe: Ihe ka ọtụtụ na protein bụ polymer ndị dị n'ahịrị nke nwere ihe dị ka amino acid L-α- 20 dị iche iche. All proteinogenic amino asịd nwere nkịtị bughi atụmatụ, gụnyere ihe α-carbon na nke ihe amino otu, a carboxyl otu, na a agbanwe n'akụkụ yinye na-ejikọrọ. Naanị proline dị iche na usoro a dị mkpa dịka ọ nwere mgbanaka na-adịghị ahụkebe na N-end amine group, nke na-amanye CO<unk>NH amide fraction n'ime nhazi nhazi. Mkpokọta akụkụ nke amino acid ọkọlọtọ, nke akọwapụtara na ndepụta nke amino acid ọkọlọtọ, nwere ọtụtụ usoro kemịkal na akụrụngwa; ọ bụ mmetụta jikọtara nke amino acid niile n'akụkụ protein na-ekpebi n'ikpeazụ usoro atọ ya na mmeghachi omume kemịkal ya.  Ajụjụ: Olee amino acid ole dị iche iche mejupụtara protein?
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