Novel SNX13 Frameshift Variant in an Individual with Developmental Delay

Recently, an increasing number of genes have been associated with global developmental delay (GDD) and intellectual disability (ID). The sorting nexin (SNX) protein family plays multiple roles in protein trafficking and intracellular signaling. SNXs have been reported to be associated with several disorders, including Alzheimer disease and Down syndrome. Despite the growing evidence of an association of SNXs with neurodegeneration, SNX13 deficiency has not been associated with GDD or ID. In this study, we present the case of a 4-year-old boy with brain dysplasia and GDD, including language delay, cognitive delay, and dyskinesia. Exome sequencing revealed a 1-bp homozygous deletion in SNX13 (NM_015132.5: exon8: c.742_743del; p.Tyr248Leufs*20), which caused a frameshift and predicted early termination. Sanger sequencing confirmed that the variant was inherited from his parents respectively. Our findings associate SNX13 variation with GDD for the first time and provide a new GDD candidate gene.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Novel SNX13 Frameshift Variant in an Individual with Developmental Delay ; volume:161 ; number:10-11 ; year:2022 ; pages:514-519 ; extent:6
Cytogenetic and genome research ; 161, Heft 10-11 (2022), 514-519 (gesamt 6)

Creator
Tao, Xicheng
Che, Yueping
Li, Chenxi
Ruan, Wencong
Xu, Jialu
Yu, Yonglin
Yang, Fan
Wang, Jia
Li, Haifeng

DOI
10.1159/000520296
URN
urn:nbn:de:101:1-2022012623342543726405
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:31 AM CEST

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Associated

  • Tao, Xicheng
  • Che, Yueping
  • Li, Chenxi
  • Ruan, Wencong
  • Xu, Jialu
  • Yu, Yonglin
  • Yang, Fan
  • Wang, Jia
  • Li, Haifeng

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