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'''Small subunit ribosomal ribonucleic acid''' ('''SSU rRNA''') is the smallest of the two major [[RNA]] components of the [[ribosome]]. |
'''Small subunit ribosomal ribonucleic acid''' ('''SSU rRNA''') is the smallest of the two major [[RNA]] components of the [[ribosome]]. |
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Associated with a number of [[ribosomal protein]]s, the SSU rRNA forms the small subunit of the ribosome. It is encoded by the SSU-rDNA. |
Associated with a number of [[ribosomal protein]]s, the SSU rRNA forms the small subunit of the ribosome. It is encoded by the SSU-[[rDNA]]. |
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==Characteristics== |
==Characteristics== |
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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. It is encoded by the SSU-rDNA.
| 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] |
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]
