ClinVar Miner

Submissions for variant NM_001164508.2(NEB):c.23742+1G>A

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Victorian Clinical Genetics Services, Murdoch Childrens Research Institute RCV002471305 SCV002767184 likely pathogenic Nemaline myopathy 2 2022-02-02 criteria provided, single submitter clinical testing Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Likely Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with nemaline myopathy 2, autosomal recessive (MIM#256030). (I) 0106 - This gene is associated with autosomal recessive disease. (I) 0211 - Canonical splice site variant without proven consequence on splicing (no functional evidence available). (SP) 0251 - This variant is heterozygous. (I) 0301 - Variant is absent from gnomAD (both v2 and v3). (SP) 0311 - An alternative nucleotide change at the same canonical splice site is present in gnomAD (v2: 11 heterozygotes, 0 homozygotes). (I) 0505 - Abnormal splicing is strongly predicted by an in silico tool and affected nucleotide is highly conserved (Splicing Diagnostics, Kids Neuroscience Centre), however accurate molecular outcome cannot be robustly predicted therefore this variant was curated as an in-frame deletion of exon 167 (the most conservative prediction of mis-splicing). (SP) 0708 - Another canonical splice site variant comparable to the one identified in this case has conflicting previous evidence for pathogenicity. c.23847+2T>C has been classified as both a VUS and Likely Pathogenic by diagnostic laboratories (ClinVar). (I) 0807 - This variant has no previous evidence of pathogenicity. (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant, but this variant is likely to cause aberrant protein function and therefore be clinically significant (expert opinion at a national multidisciplinary meeting) (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign

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