ArticlePloS one2025
Identification of maternal allele sequences of IG-DMR that are essential for neonatal viability.
Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Regulatory mechanisms of maternal imprinting at the murine Dlk1-Dio3 domain.Nature communications · 2026Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The expression of imprinted genes in the Dlk1-Dio3 domain is regulated by Dlk1-Meg3 intergenic DMR (IG-DMR), which is methylated in a parental-of-origin-specific manner. An unmethylated 4.1-kb region in the IG-DMR is essential for the maternal allele. Several molecular mechanisms have been proposed for the 4.1-kb region of IG-DMR; however, the sequence in the 4.1-kb region essential for imprinted gene expression is still unknown. To explore the sequence responsible for the IG-DMR in vivo, we generated mutant mice with a series of IG-DMR deletions. We observed that a deletion of the 2.7-kb region, including the IG-DMR transcriptional regulatory element (IGTRE), on the maternal allele causes IG-DMR dysfunction, resulting in perinatal lethality. At least two functional sequences exist in IGTRE that are functionally redundant in vivo, and the paternal transmission of a mutant allele, in which IGTRE was deleted together with a tandem repeat sequence in IG-DMR (IGRep), rescued embryonic lethality due to a lack of paternal IGRep. Our findings revealed that a sequence responsible for the lethal phenotype of the maternally inherited 4.1-kb deletion of IG-DMR is in the IGTRE domain.
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