Open Access
Nature Structural and Molecular Biology, volume 23, issue 4, pages 286-292
Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects
Shukla Siddharth
1
,
Schmidt Jens C
1
,
Goldfarb Katherine C
1
,
Cech Thomas R
1, 2
,
Parker Roy
1, 2
1
Department of Chemistry & Biochemistry, University of Colorado, Boulder, USA
|
2
Howard Hughes Medical Institute, Chevy Chase, USA
|
Publication type: Journal Article
Publication date: 2016-03-07
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 16.8
ISSN: 15459993, 15459985
PubMed ID:
26950371
Molecular Biology
Structural Biology
Abstract
Mutations in the human telomerase RNA component (hTR), the telomerase ribonucleoprotein component dyskerin (DKC1) and the poly(A) RNase (PARN) can lead to reduced levels of hTR and to dyskeratosis congenita (DC). However, the enzymes and mechanisms responsible for hTR degradation are unknown. We demonstrate that defects in dyskerin binding lead to hTR degradation by PAPD5-mediated oligoadenylation, which promotes 3′-to-5′ degradation by EXOSC10, as well as decapping and 5′-to-3′ decay by the cytoplasmic DCP2 and XRN1 enzymes. PARN increased hTR levels by deadenylating hTR, thereby limiting its degradation by EXOSC10. Telomerase activity and proper hTR localization in dyskerin- or PARN-deficient cells were rescued by knockdown of DCP2 and/or EXOSC10. Prevention of hTR RNA decay also led to a rescue of localization of DC-associated hTR mutants. These results suggest that inhibition of RNA decay pathways might be a useful therapy for some telomere pathologies.
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Shukla S. et al. Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects // Nature Structural and Molecular Biology. 2016. Vol. 23. No. 4. pp. 286-292.
GOST all authors (up to 50)
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Shukla S., Schmidt J. C., Goldfarb K. C., Cech T. R., Parker R. Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects // Nature Structural and Molecular Biology. 2016. Vol. 23. No. 4. pp. 286-292.
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TY - JOUR
DO - 10.1038/nsmb.3184
UR - https://doi.org/10.1038%2Fnsmb.3184
TI - Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects
T2 - Nature Structural and Molecular Biology
AU - Shukla, Siddharth
AU - Schmidt, Jens C
AU - Goldfarb, Katherine C
AU - Cech, Thomas R
AU - Parker, Roy
PY - 2016
DA - 2016/03/07 00:00:00
PB - Springer Nature
SP - 286-292
IS - 4
VL - 23
PMID - 26950371
SN - 1545-9993
SN - 1545-9985
ER -
Cite this
BibTex
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@article{2016_Shukla,
author = {Siddharth Shukla and Jens C Schmidt and Katherine C Goldfarb and Thomas R Cech and Roy Parker},
title = {Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects},
journal = {Nature Structural and Molecular Biology},
year = {2016},
volume = {23},
publisher = {Springer Nature},
month = {mar},
url = {https://doi.org/10.1038%2Fnsmb.3184},
number = {4},
pages = {286--292},
doi = {10.1038/nsmb.3184}
}
Cite this
MLA
Copy
Shukla, Siddharth, et al. “Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects.” Nature Structural and Molecular Biology, vol. 23, no. 4, Mar. 2016, pp. 286-292. https://doi.org/10.1038%2Fnsmb.3184.