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Cited by 186

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Functional Interaction between Poly(ADP-Ribose) Polymerase 2 (PARP-2) and TRF2: PARP Activity Negatively Regulates TRF2

Open access
Dantzer, Françoise, Giraud-Panis, Marie-Josèphe, Jaco, Isabel, Amé, Jean-Christophe, Schultz, Inès, Blasco, Maria, Koering, Catherine-Elaine, Gilson, Eric, Ménissier-de Murcia, Josiane, de Murcia, Gilbert, Schreiber, Valérie·2004·Molecular and Cellular Biology

Abstract

The DNA damage-dependent poly(ADP-ribose) polymerase-2 (PARP-2) is, together with PARP-1, an active player of the base excision repair process, thus defining its key role in genome surveillance and protection. Telomeres are specialized DNA-protein structures that protect chromosome ends from being recognized and processed as DNA strand breaks. In mammals, telomere protection depends on the T(2)AG(3) repeat binding protein TRF2, which has been shown to remodel telomeres into large duplex loops (t-loops). In this work we show that PARP-2 physically binds to TRF2 with high affinity. The association of both proteins requires the N-terminal domain of PARP-2 and the myb domain of TRF2. Both partners colocalize at promyelocytic leukemia bodies in immortalized telomerase-negative cells. In addition, our data show that PARP activity regulates the DNA binding activity of TRF2 via both a covalent heteromodification of the dimerization domain of TRF2 and a noncovalent binding of poly(ADP-ribose) to the myb domain of TRF2. PARP-2(-/-) primary cells show normal telomere length as well as normal telomerase activity compared to wild-type cells but display a spontaneously increased frequency of chromosome and chromatid breaks and of ends lacking detectable T(2)AG(3) repeats. Altogether, these results suggest a functional role of PARP-2 activity in the maintenance of telomere integrity.

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Crossref · 10.1128/mcb.24.4.1595-1607.2004

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Metadata

Authors
Dantzer, F., Giraud-Panis, M.-J., Jaco, I., Amé, J.-C., Schultz, I., Blasco, M., Koering, C.-E., Gilson, E., Ménissier-de Murcia, J., de Murcia, G., & Schreiber, V.
Venue
Molecular and Cellular Biology
Published
2004-02-01
Volume
24
Issue
4
Pages
1595-1607
ISSN
  • 0270-7306 (ISSN-L)
  • 1098-5549
OpenAlex
W2121272379
Cited by
186
References
12
FWCI
12.16
Type
journal article
Language
en
Open access
green

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Dantzer, F., Giraud-Panis, M.-J., Jaco, I., Amé, J.-C., Schultz, I., Blasco, M., Koering, C.-E., Gilson, E., Ménissier-de Murcia, J., de Murcia, G., & Schreiber, V. (2004). Functional Interaction between Poly(ADP-Ribose) Polymerase 2 (PARP-2) and TRF2: PARP Activity Negatively Regulates TRF2. Molecular and Cellular Biology. https://doi.org/10.1128/mcb.24.4.1595-1607.2004

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