ClinVar Miner

Submissions for variant NM_031844.3(HNRNPU):c.2304_2305del (p.Gly769fs)

dbSNP: rs794729648
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Mendelics RCV002247599 SCV002516553 pathogenic Developmental and epileptic encephalopathy, 54 2022-05-04 criteria provided, single submitter clinical testing
Laboratory of Medical Genetics, University of Torino RCV002247599 SCV002774887 likely pathogenic Developmental and epileptic encephalopathy, 54 2022-12-23 criteria provided, single submitter clinical testing
Division of Human Genetics, Children's Hospital of Philadelphia RCV000185558 SCV000238445 pathogenic Intellectual disability and seizures 2015-05-07 no assertion criteria provided research Mutations in HNRNPU have been reported in patients with intellectual disability and seizures. This gene was first described in a clinical context with respect to the 1q43q44 microdeletion syndrome. The gene content and size of deletions vary among the reported patients, but all patients with a seizure phenotype were missing a copy of HNRNPU, FAM36A and C1orf199 (Baliff et al. 2012, PMID: 21800092). There are now several reports of patients with de novo mutations in HNRNPU who have intellectual disability, developmental delays and, in several cases, seizures (Need et al. 2012, PMID: 22581936; Allen et al. 2013, PMID: 23934111; King et al. 2014, PMID: 24356988; Hamdan et al. 2014, PMID: 25356899). This variant (NM_004051.3:c.2304_2305del) is a likely pathogenic de novo frameshift mutation. This mutation does not occur in the last exon, and may result in a protein with an altered protein composition. This mutation has not previously been reported or observed in a large control database (ExAC).

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