Lamin A/C-dependent interaction with 53BP1 promotes cellular responses to DNA damage
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Lamin A/C-dependent interaction with 53BP1 promotes cellular responses to DNA damage. / Gibbs-Seymour, Ian; Markiewicz, Ewa; Bekker-Jensen, Simon; Mailand, Niels; Hutchison, Christopher J.
In: Aging Cell, Vol. 14, No. 2, 04.2015, p. 162-9.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Lamin A/C-dependent interaction with 53BP1 promotes cellular responses to DNA damage
AU - Gibbs-Seymour, Ian
AU - Markiewicz, Ewa
AU - Bekker-Jensen, Simon
AU - Mailand, Niels
AU - Hutchison, Christopher J
N1 - © 2014 The Authors. Aging Cell published by the Anatomical Society and John Wiley & Sons Ltd.
PY - 2015/4
Y1 - 2015/4
N2 - Lamins A/C have been implicated in DNA damage response pathways. We show that the DNA repair protein 53BP1 is a lamin A/C binding protein. In undamaged human dermal fibroblasts (HDF), 53BP1 is a nucleoskeleton protein. 53BP1 binds to lamins A/C via its Tudor domain, and this is abrogated by DNA damage. Lamins A/C regulate 53BP1 levels and consequently lamin A/C-null HDF display a 53BP1 null-like phenotype. Our data favour a model in which lamins A/C maintain a nucleoplasmic pool of 53BP1 in order to facilitate its rapid recruitment to sites of DNA damage and could explain why an absence of lamin A/C accelerates aging.
AB - Lamins A/C have been implicated in DNA damage response pathways. We show that the DNA repair protein 53BP1 is a lamin A/C binding protein. In undamaged human dermal fibroblasts (HDF), 53BP1 is a nucleoskeleton protein. 53BP1 binds to lamins A/C via its Tudor domain, and this is abrogated by DNA damage. Lamins A/C regulate 53BP1 levels and consequently lamin A/C-null HDF display a 53BP1 null-like phenotype. Our data favour a model in which lamins A/C maintain a nucleoplasmic pool of 53BP1 in order to facilitate its rapid recruitment to sites of DNA damage and could explain why an absence of lamin A/C accelerates aging.
U2 - 10.1111/acel.12258
DO - 10.1111/acel.12258
M3 - Journal article
C2 - 25645366
VL - 14
SP - 162
EP - 169
JO - Aging Cell
JF - Aging Cell
SN - 1474-9718
IS - 2
ER -
ID: 139975416