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Deficit of homozygosity among 1.52 million individuals and genetic causes of recessive lethality

Oddsson, Asmundur ; Sulem, Patrick ; Sveinbjornsson, Gardar ; Arnadottir, Gudny A ; Steinthorsdottir, Valgerdur ; Halldorsson, Gisli H ; Atlason, Bjarni A ; Oskarsson, Gudjon R ; Helgason, Hannes and Nielsen, Henriette Svarre , et al. (2023) In Nature Communications 14(1). p.3453-3453
Abstract

Genotypes causing pregnancy loss and perinatal mortality are depleted among living individuals and are therefore difficult to find. To explore genetic causes of recessive lethality, we searched for sequence variants with deficit of homozygosity among 1.52 million individuals from six European populations. In this study, we identified 25 genes harboring protein-altering sequence variants with a strong deficit of homozygosity (10% or less of predicted homozygotes). Sequence variants in 12 of the genes cause Mendelian disease under a recessive mode of inheritance, two under a dominant mode, but variants in the remaining 11 have not been reported to cause disease. Sequence variants with a strong deficit of homozygosity are over-represented... (More)

Genotypes causing pregnancy loss and perinatal mortality are depleted among living individuals and are therefore difficult to find. To explore genetic causes of recessive lethality, we searched for sequence variants with deficit of homozygosity among 1.52 million individuals from six European populations. In this study, we identified 25 genes harboring protein-altering sequence variants with a strong deficit of homozygosity (10% or less of predicted homozygotes). Sequence variants in 12 of the genes cause Mendelian disease under a recessive mode of inheritance, two under a dominant mode, but variants in the remaining 11 have not been reported to cause disease. Sequence variants with a strong deficit of homozygosity are over-represented among genes essential for growth of human cell lines and genes orthologous to mouse genes known to affect viability. The function of these genes gives insight into the genetics of intrauterine lethality. We also identified 1077 genes with homozygous predicted loss-of-function genotypes not previously described, bringing the total set of genes completely knocked out in humans to 4785.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Humans, Animals, Mice, Homozygote, Genotype, Proteins/genetics, Genes, Recessive
in
Nature Communications
volume
14
issue
1
pages
3453 - 3453
publisher
Nature Publishing Group
external identifiers
  • pmid:37301908
  • scopus:85161942886
ISSN
2041-1723
DOI
10.1038/s41467-023-38951-2
language
English
LU publication?
yes
additional info
© 2023. The Author(s).
id
56b04f45-f21b-4acf-8b4f-61d379ea5f70
date added to LUP
2024-12-02 16:04:08
date last changed
2024-12-17 05:28:02
@article{56b04f45-f21b-4acf-8b4f-61d379ea5f70,
  abstract     = {{<p>Genotypes causing pregnancy loss and perinatal mortality are depleted among living individuals and are therefore difficult to find. To explore genetic causes of recessive lethality, we searched for sequence variants with deficit of homozygosity among 1.52 million individuals from six European populations. In this study, we identified 25 genes harboring protein-altering sequence variants with a strong deficit of homozygosity (10% or less of predicted homozygotes). Sequence variants in 12 of the genes cause Mendelian disease under a recessive mode of inheritance, two under a dominant mode, but variants in the remaining 11 have not been reported to cause disease. Sequence variants with a strong deficit of homozygosity are over-represented among genes essential for growth of human cell lines and genes orthologous to mouse genes known to affect viability. The function of these genes gives insight into the genetics of intrauterine lethality. We also identified 1077 genes with homozygous predicted loss-of-function genotypes not previously described, bringing the total set of genes completely knocked out in humans to 4785.</p>}},
  author       = {{Oddsson, Asmundur and Sulem, Patrick and Sveinbjornsson, Gardar and Arnadottir, Gudny A and Steinthorsdottir, Valgerdur and Halldorsson, Gisli H and Atlason, Bjarni A and Oskarsson, Gudjon R and Helgason, Hannes and Nielsen, Henriette Svarre and Westergaard, David and Karjalainen, Juha M and Katrinardottir, Hildigunnur and Fridriksdottir, Run and Jensson, Brynjar O and Tragante, Vinicius and Ferkingstad, Egil and Jonsson, Hakon and Gudjonsson, Sigurjon A and Beyter, Doruk and Moore, Kristjan H S and Thordardottir, Helga B and Kristmundsdottir, Snaedis and Stefansson, Olafur A and Rantapää-Dahlqvist, Solbritt and Sonderby, Ida Elken and Didriksen, Maria and Stridh, Pernilla and Haavik, Jan and Tryggvadottir, Laufey and Frei, Oleksandr and Walters, G Bragi and Kockum, Ingrid and Hjalgrim, Henrik and Olafsdottir, Thorunn A and Selbaek, Geir and Nyegaard, Mette and Erikstrup, Christian and Brodersen, Thorsten and Saevarsdottir, Saedis and Olsson, Tomas and Nielsen, Kaspar Rene and Haraldsson, Asgeir and Bruun, Mie Topholm and Hansen, Thomas Folkmann and Steingrimsdottir, Thora and Jacobsen, Rikke Louise and Lopez de Lapuente Portilla, Aitzkoa and Daly, Mark and Holm, Hilma}},
  issn         = {{2041-1723}},
  keywords     = {{Humans; Animals; Mice; Homozygote; Genotype; Proteins/genetics; Genes, Recessive}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{1}},
  pages        = {{3453--3453}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Communications}},
  title        = {{Deficit of homozygosity among 1.52 million individuals and genetic causes of recessive lethality}},
  url          = {{http://dx.doi.org/10.1038/s41467-023-38951-2}},
  doi          = {{10.1038/s41467-023-38951-2}},
  volume       = {{14}},
  year         = {{2023}},
}