Chromosomal instability by mutations in the novel minor spliceosome component CENATAC.
EMBO J
; 40(14): e106536, 2021 07 15.
Article
en En
| MEDLINE
| ID: mdl-34009673
ABSTRACT
Aneuploidy is the leading cause of miscarriage and congenital birth defects, and a hallmark of cancer. Despite this strong association with human disease, the genetic causes of aneuploidy remain largely unknown. Through exome sequencing of patients with constitutional mosaic aneuploidy, we identified biallelic truncating mutations in CENATAC (CCDC84). We show that CENATAC is a novel component of the minor (U12-dependent) spliceosome that promotes splicing of a specific, rare minor intron subtype. This subtype is characterized by AT-AN splice sites and relatively high basal levels of intron retention. CENATAC depletion or expression of disease mutants resulted in excessive retention of AT-AN minor introns in Ë 100 genes enriched for nucleocytoplasmic transport and cell cycle regulators, and caused chromosome segregation errors. Our findings reveal selectivity in minor intron splicing and suggest a link between minor spliceosome defects and constitutional aneuploidy in humans.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Cromosomas
/
Empalmosomas
/
Inestabilidad Cromosómica
/
Mutación
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
EMBO J
Año:
2021
Tipo del documento:
Article
País de afiliación:
Países Bajos