January 1, 2025Human MutationOpen Access

Optical Genomic Mapping and Next‐Generation Sequencing Identified Retrotransposon Insertion and Missense Variant Disrupting PARN Gene in Dyskeratosis Congenita

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Discussion

Analysis reveals PARN gene variants and transposon insertions in a patient with dyskeratosis congenita, indicating their role in disease pathology.

Identified a novel PARN gene variant affecting protein levels linked to dyskeratosis congenita, suggesting potential disease mechanisms.
Whole exome sequencing and optical mapping uncovered compound heterozygous variants in the participant's PARN gene.
Transposon insertion in the PARN gene led to major protein disruptions, highlighting the importance of genetic testing in diagnosis.
Findings call for further exploration of structural variants' role in dyskeratosis congenita and similar disorders.

Cao et al. (2025) studied this question.

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Analysis reveals PARN gene variants and transposon insertions in a patient with dyskeratosis congenita, indicating their role in disease pathology.