Ribosomal RNA

∞ generated and posted on 2016.08.28 ∞

Nucleic acid basis of the structure and function of ribosomes.

A number of ribosomal RNAs exist which are distinguished both in terms of what are known as Svedberg units and otherwise in terms of what domain(s) the ribosome is found in along with what ribosomal subunit it is part of (large versus small):

Eukaryote, large subunit (overall, 60S): 28S, 5.8S, 5S
Eukaryote, small subunit (overall, 40S): 18S
Prokaryote, large subunit (overall, 50S): 23S, 5S
Prokaryote, small subunit (overall, 30S): 16S

See also RNA and rRNA as well as messenger RNA (mRNA) and transfer RNA (tRNA).

The sequence of the small-subunit ribosomal RNA (ssrRNA) serves as the basis of the Universal Tree.