ClinVar Miner

Submissions for variant NM_005559.4(LAMA1):c.6333dup (p.Gln2112fs)

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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 RCV002471465 SCV002768150 pathogenic Ataxia - intellectual disability - oculomotor apraxia - cerebellar cysts syndrome 2022-02-02 criteria provided, single submitter clinical testing Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with Poretti-Boltshauser syndrome (MIM#615960). (I) 0106 - This gene is associated with autosomal recessive disease. (I) 0201 - Variant is predicted to cause nonsense-mediated decay (NMD) and loss of protein (premature termination codon is located at least 54 nucleotides upstream of the final exon-exon junction). (SP) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD (v3) <0.01 for a recessive condition (2 heterozygotes, 0 homozygotes). (SP) 0701 - Other NMD-predicted variants comparable to the one identified in this case have very strong previous evidence for pathogenicity. Many other variants predicted to result in a loss of function have previously been reported in individuals with Poretti-Boltshauser syndrome (MIM#615960) (ClinVar, DECIPHER). (SP) 0803 - This variant has limited previous evidence of pathogenicity in an unrelated individual. The variant has previously been classified as pathogenic and reported in trans with a likely pathogenic missense in an individual diagnosed with Poretti-Boltshauser syndrome (MIM#615960) (PMID: 33767182). (SP) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign

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