Kusukela endimeni enikeziwe, khipha ububanzi bama-ribosome eukaryotic.
Context:Ama-ribosome e-prokaryotic acishe abe ngu-20 nm (200 Å) ububanzi futhi akhiwe ngama-65% e-rRNA nama-35% amaprotheni e-ribosomal. Ama - ribosome e - eukaryotic aphakathi kuka - 25 no - 30 nm (250<unk>300 Å) ngobubanzi ngesilinganiso se - rRNA-to-protein esiseduze no - 1. Umsebenzi we-crystallographic ubonise ukuthi awekho amaprotheni e-ribosomal aseduze nendawo yokusabela ye-polypeptide synthesis. Lokhu kusikisela ukuthi izingxenye zamaprotheni ama-ribosomes azihlanganyeli ngqo ekwakhekeni kwe-peptide bond catalysis, kodwa kunalokho ukuthi la maprotheni asebenza njenge-scaffold engathuthukisa ikhono le-rRNA lokuhlanganisa amaprotheni (Bheka: Ribozyme).
Ama-ribosome e-eukaryotic aphakathi kuka-25 no-30 nm (250<unk>300 Å) ububanzi.