SSU rRNA

Small subunit ribosomal ribonucleic acid (SSU rRNA) is the smallest of the two major RNA components of the ribosome. Associated with a number of ribosomal proteins, the SSU rRNA forms the small subunit of the ribosome.

Characteristics

Characteristics of the SSU rRNA for exemplary species.
Type SSU rRNA size Species Length Accession Reference
Bacterial (Prokaryotic) 16S Escherichia coli 1,541 nt J01859.1 [1]
Archaeal (Prokaryotic) 16S Halobacterium salinarum 1,473 nt M38280.1 [2]
Eukaryotic 18S Homo sapiens 1,969 nt M10098.1 [3]
Mitochondrial 12S Homo sapiens 954 nt NC_012920.1 [4],[5]
Plastid 16S Arabidopsis thaliana 1,491 nt NC_000932.1 [6]

Use in phylogenetics

Phylogenetic tree based on SSU rRNA sequence comparison, with a color for each of the three domains of life.[7]

SSU rRNA sequences are widely used for working out evolutionary relationships among organisms, since they are of ancient origin and are found in all known forms of life.[7]

See also

  • LSU rRNA: the large subunit ribosomal ribonucleic acid.

References

  1. ↑ "Escherichia coli 16S ribosomal RNA".
  2. ↑ "Halobacterium salinarum 18S ribosomal RNA".
  3. ↑ "Homo sapiens 18S ribosomal RNA (nuclear)".
  4. ↑ Homo sapiens mitochondrion, complete genome. "Revised Cambridge Reference Sequence (rCRS): accession NC_012920", National Center for Biotechnology Information. Retrieved on 20 February 2017.
  5. ↑ Anderson, S.; Bankier, A. T.; Barrell, B. G.; de Bruijn, M. H. L.; Coulson, A. R.; Drouin, J.; Eperon, I. C.; Nierlich, D. P.; Roe, B. A. (1981-04-09). "Sequence and organization of the human mitochondrial genome". Nature. 290 (5806): 457–465. doi:10.1038/290457a0.
  6. ↑ "Arabidopsis thaliana 16S ribosomal RNA (chloroplast)".
  7. 1 2 Woese, Carl R.; Kandler, O; Wheelis, M (1990). "Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and Eucarya". Proc Natl Acad Sci USA. 87 (12): 4576–9. Bibcode:1990PNAS...87.4576W. doi:10.1073/pnas.87.12.4576. PMC 54159. PMID 2112744.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.