SSU rRNA explained
Small subunit ribosomal ribonucleic acid (SSU rRNA) is the smaller 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. It is encoded by SSU-rDNA.
| Symbol: | SSU |
| Rfam Clan: | CL00111 |
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
SSU rRNA sequences are widely used for determining evolutionary relationships among organisms, since they are of ancient origin and are found in all known forms of life.[7]
See also
the large subunit ribosomal ribonucleic acid.
Notes and References
- Web site: Escherichia coli 16S ribosomal RNA . 13 June 2017 .
- Web site: Halobacterium salinarum 16S ribosomal RNA . 7 August 1991 .
- Web site: Homo sapiens 18S ribosomal RNA (nuclear) . 2 May 1986 .
- Homo sapiens mitochondrion, complete genome. "Revised Cambridge Reference Sequence (rCRS): accession NC_012920", National Center for Biotechnology Information. Retrieved on 20 February 2017.
- Anderson S, Bankier AT, Barrell BG, de Bruijn MH, Coulson AR, Drouin J, Eperon IC, Nierlich DP, Roe BA, Sanger F, Schreier PH, Smith AJ, Staden R, Young IG . 6 . Sequence and organization of the human mitochondrial genome . Nature . 290 . 5806 . 457–465 . April 1981 . 7219534 . 10.1038/290457a0 . 1981Natur.290..457A . 4355527 .
- Web site: Arabidopsis thaliana 16S ribosomal RNA (chloroplast) . 26 September 2019 .
- Woese CR, Kandler O, Wheelis ML . Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and Eucarya . Proceedings of the National Academy of Sciences of the United States of America . 87 . 12 . 4576–4579 . June 1990 . 2112744 . 54159 . 10.1073/pnas.87.12.4576 . 1990PNAS...87.4576W . Carl Woese . free .
