mitochondrially encoded tRNA leucine 1 (UUA/G)
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The MT-TL1 gene provides instructions for making a molecule called a transfer RNA (tRNA), which is a chemical cousin of DNA. Transfer RNAs help assemble protein building blocks (amino acids) into functioning proteins. The MT-TL1 gene provides instructions for making a specific form of tRNA that is designated as tRNALeu(UUR). During protein assembly, this molecule attaches to the amino acid leucine (Leu) and inserts it into the appropriate locations in the growing protein.
Normal function
The MT-TL1 gene provides instructions for making a molecule called a transfer RNA (tRNA), which is a chemical cousin of DNA. Transfer RNAs help assemble protein building blocks (amino acids) into functioning proteins. The MT-TL1 gene provides instructions for making a specific form of tRNA that is designated as tRNALeu(UUR). During protein assembly, this molecule attaches to the amino acid leucine (Leu) and inserts it into the appropriate locations in the growing protein.
The tRNALeu(UUR) molecule is present in cellular structures called mitochondria. These structures convert energy from food into a form that cells can use. Within mitochondria, tRNALeu(UUR) is involved in the assembly of proteins that carry out a series of chemical steps called oxidative phosphorylation. This process uses oxygen, simple sugars, and fatty acids to create adenosine triphosphate (ATP), the cell's main energy source.
In certain cells in the pancreas, called beta cells, mitochondria also play a role in controlling the amount of sugar (glucose) in the bloodstream. In response to high glucose levels, mitochondria help trigger the release of a hormone called insulin. Insulin regulates blood glucose levels by controlling how much glucose is passed from the blood into cells to be converted into energy.
Conditions referring to this gene or chromosome
Other names
MTTL1
tRNA leucine 1 (UUA/G)
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Weiterführende Lektüre und Referenzen
- mitochondrially encoded tRNA leucine 1 (UUA/G); MedlinePlus, National Library of Medicine.
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- Yarham JW, Blakely EL, Alston CL, Roberts ME, Ealing J, Pal P, Turnbull DM, McFarland R, Taylor RW. The m.3291T>C mt-tRNA(Leu(UUR)) mutation is definitely pathogenic and causes multisystem mitochondrial disease. J Neurol Sci. 2013 Feb 15;325(1-2):165-9. doi: 10.1016/j.jns.2012.12.003. Epub 2012 Dec 27.
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25 Jul 2023 | Neueste Version
1 May 2014 | Ursprünglich veröffentlicht
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