C-terminal truncations in human 3 '-5 ' DNA exonuclease TREX1 cause autosomal dominant retinal vasculopathy with cerebral leukodystrophy
- Richards, Anna
- van den Maagdenberg, Arn M. J. M.
- Jen, Joanna C.
- Kavanagh, David
- Bertram, Paula
- Spitzer, Dirk
- Liszewski, M. Kathryn
- Barilla-LaBarca, Maria-Louise
- Terwindt, Gisela M.
- Kasai, Yumi
- McLellan, Mike
- Grand, Mark Gilbert
- Vanmolkot, Kaate R. J.
- de Vries, Boukje
- Wan, Jijun
- Kane, Michael J.
- Mamsa, Hafsa
- Schaefer, Ruth
- Stam, Anine H.
- Haan, Joost
- Paulus, T. V. M. de Jong
- Storimans, Caroline W.
- van Schooneveld, Mary J.
- Oosterhuis, Jendo A.
- Gschwendter, Andreas
- Dichgans, Martin
- Kotschet, Katya E.
- Hodgkinson, Suzanne
- Hardy, Todd A.
- Delatycki, Martin B.
- Hajj-Ali, Rula A.
- Kothari, Parul H.
- Nelson, Stanley F.
- Frants, Rune R.
- Baloh, Robert W.
- Ferrari, Michel D.
- Atkinson, John P.
DOIAbstract
Autosomal dominant retinal vasculopathy with cerebral leukodystrophy is a microvascular endotheliopathy with middle- age onset. In nine families, we identified heterozygous C- terminal frameshift mutations in TREX1, which encodes a 3'-5' exonuclease. These truncated proteins retain exonuclease activity but lose normal perinuclear localization. These data have implications for the maintenance of vascular integrity in the degenerative cerebral microangiopathies leading to stroke and dementias
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