Mitochondrially encoded 16S RNA (often abbreviated as ''16S'') is the
mitochondrial
A mitochondrion (; ) is an organelle found in the cells of most Eukaryotes, such as animals, plants and fungi. Mitochondria have a double membrane structure and use aerobic respiration to generate adenosine triphosphate (ATP), which is use ...
large subunit ribosomal RNA that in humans is encoded by the MT-RNR2
gene
In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...
. The MT-RNR2 gene also encodes the
Humanin
Humanin is a micropeptide encoded in the mitochondrial genome by the 16S ribosomal RNA gene, MT-RNR2. Its structure contains a three-turn α-helix, and no symmetry.
In ''in vitro'' and animal models, it appears to have cytoprotective effects. ...
polypeptide that has been the target of
Alzheimer's disease
Alzheimer's disease (AD) is a neurodegeneration, neurodegenerative disease that usually starts slowly and progressively worsens. It is the cause of 60–70% of cases of dementia. The most common early symptom is difficulty in short-term me ...
research.
[ ]
The 16S rRNA is the mitochondrial homologue of the
prokaryotic 23S and
eukaryotic nuclear 28S ribosomal RNAs.
See also
*
Mitochondrial DNA
Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial D ...
*
Humanin
Humanin is a micropeptide encoded in the mitochondrial genome by the 16S ribosomal RNA gene, MT-RNR2. Its structure contains a three-turn α-helix, and no symmetry.
In ''in vitro'' and animal models, it appears to have cytoprotective effects. ...
References
Ribosomal RNA
Human mitochondrial genes
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