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AAT Bioquest

What are the subunits of 80s ribosomes?

Posted February 2, 2023


Answer

80S ribosomes are composed of two subunits of different sizes. The larger (60-S) subunit is composed of 5-S rRNA, 5.8-S rRNA, 28-S rRNA and about 40 proteins. The smaller (40-S) subunit is composed of 18-S rRNA and about 33 proteins. 80S ribosomes play a central role in synthesizing proteins in eukaryotes.

Additional resources

Structure of the human 80S ribosome

Cell Structures and Organelles

iFluor® 488-Wheat Germ Agglutinin (WGA) Conjugate