ClinVar Miner

Submissions for variant NM_005787.6(ALG3):c.2T>C (p.Met1Thr)

dbSNP: rs773271124
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Clinical Genetics and Genomics, Karolinska University Hospital RCV001269546 SCV001449604 pathogenic not provided 2015-12-15 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV003770408 SCV004659067 likely pathogenic ALG3-congenital disorder of glycosylation 2023-10-09 criteria provided, single submitter clinical testing This sequence change affects the initiator methionine of the ALG3 mRNA. The next in-frame methionine is located at codon 75. This variant is present in population databases (no rsID available, gnomAD 0.001%). Disruption of the initiator codon has been observed in individual(s) with congenital disorders of glycosylation type I (PMID: 27172925). ClinVar contains an entry for this variant (Variation ID: 988293). This variant disrupts a region of the ALG3 protein in which other variant(s) (p.Pro39Leu) have been observed in individuals with ALG3-related conditions (PMID: 18679822). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.

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