ubiquitin C-terminal hydrolase L1
Dernière mise à jour 17 Jul 2023
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La UCHL1 gene provides instructions for making an enzyme called ubiquitin carboxyl-terminal esterase L1. This enzyme is found in nerve cells throughout the brain. Ubiquitin carboxyl-terminal esterase L1 is probably involved in the cell machinery that breaks down (degrades) unneeded proteins. In cells, damaged or excess proteins are tagged with molecules called ubiquitin. Ubiquitin serves as a signal to move these unneeded proteins into specialized structures known as proteasomes, where the proteins are degraded. The ubiquitin-proteasome system acts as the cell's quality control system by disposing of damaged, misshapen, and excess proteins.
Normal function
La UCHL1 gene provides instructions for making an enzyme called ubiquitin carboxyl-terminal esterase L1. This enzyme is found in nerve cells throughout the brain. Ubiquitin carboxyl-terminal esterase L1 is probably involved in the cell machinery that breaks down (degrades) unneeded proteins. In cells, damaged or excess proteins are tagged with molecules called ubiquitin. Ubiquitin serves as a signal to move these unneeded proteins into specialized structures known as proteasomes, where the proteins are degraded. The ubiquitin-proteasome system acts as the cell's quality control system by disposing of damaged, misshapen, and excess proteins.
Although the exact function of ubiquitin carboxyl-terminal esterase L1 is not fully understood, it appears to have two types of enzyme activity. One of these, called hydrolase activity, removes and recycles ubiquitin molecules from degraded proteins. This recycling step is important to sustain the degradation process. The other enzyme function, known as ligase activity, links together ubiquitin molecules for use in tagging proteins for disposal.
Conditions referring to this gene or chromosome
Other names
MSY1
neuron cytoplastic protein 9.5
PARK5
PGP9.5
ubiquitin carboxyl-terminal esterase L1 (ubiquitin thiolesterase)
ubiquitin thiolesterase
UBL1
UCHL-1
UCHL1_HUMAN
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Lectures complémentaires et références
- ubiquitin C-terminal hydrolase L1; MedlinePlus, National Library of Medicine.
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- Liu Y, Fallon L, Lashuel HA, Liu Z, Lansbury PT Jr. The UCH-L1 gene encodes two opposing enzymatic activities that affect alpha-synuclein degradation and Parkinson's disease susceptibility. Cell. 2002 Oct 18;111(2):209-18. doi: 10.1016/s0092-8674(02)01012-7.
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- Ragland M, Hutter C, Zabetian C, Edwards K. Association between the ubiquitin carboxyl-terminal esterase L1 gene (UCHL1) S18Y variant and Parkinson's Disease: a HuGE review and meta-analysis. Am J Epidemiol. 2009 Dec 1;170(11):1344-57. doi: 10.1093/aje/kwp288. Epub 2009 Oct 28.
- Tan EK, Puong KY, Fook-Chong S, Chua E, Shen H, Yuen Y, Pavanni R, Wong MC, Puvan K, Zhao Y. Case-control study of UCHL1 S18Y variant in Parkinson's disease. Mov Disord. 2006 Oct;21(10):1765-8. doi: 10.1002/mds.21064.
- Wintermeyer P, Kruger R, Kuhn W, Muller T, Woitalla D, Berg D, Becker G, Leroy E, Polymeropoulos M, Berger K, Przuntek H, Schols L, Epplen JT, Riess O. Mutation analysis and association studies of the UCHL1 gene in German Parkinson's disease patients. Neuroreport. 2000 Jul 14;11(10):2079-82. doi: 10.1097/00001756-200007140-00004.
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