28S ribosomal RNA

16S and 28S phylogenies of three Waldo species

28S ribosomal RNA is the eukaryotic nuclear homologue of the prokaryotic 23S ribosomal RNA. This is the structural RNA for the large component of eukaryotic cytoplasmic ribosomes, and thus one of the basic components of all eukaryotic cells.^[1]

The genes coding for 28S rRNA are referred to as 28S rDNA. Sequences from these genes are sometimes used in molecular analysis to construct phylogenetic trees.^[2]

References

↑ Lodish, H. (1995). Molecular Cell Biology, 3rd ed. Freeman.
↑ Mallatt, Jon; Sullivan, Jack (December 1998). "28S and 18S rDNA sequences support the monophyly of lampreys and hagfishes". Molecular Biology and Evolution 15 (12): 1706–18. doi:10.1093/oxfordjournals.molbev.a025897. PMID 9866205.

Ribosomal RNA / ribosome subunits

Prokaryotes (70S)

Large

50S

23S

Small

30S

16S

Eukaryotes (80S)

Cytoplasmic	Large 60S 5S 5.8S 28S Small 40S 18S

Mitochondrial	MT-RNR1, 12S MT-RNR2, 16S

Index of genetics

Description	Gene expression DNA replication cycle recombination repair binding proteins Transcription factors regulators nucleic acids RNA RNA binding proteins ribonucleoproteins repeated sequence modification Translation ribosome modification nexins Proteins domains Structure primary secondary tertiary quaternary

Disease	Replication and repair Transcription factor Transcription Translation