ClinVar Miner

Submissions for variant NM_002103.5(GYS1):c.1229+1G>A

dbSNP: rs111911126
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001060829 SCV001225542 likely pathogenic Glycogen storage disease due to muscle and heart glycogen synthase deficiency 2023-03-20 criteria provided, single submitter clinical testing 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 855545). This variant has not been reported in the literature in individuals affected with GYS1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change affects a donor splice site in intron 9 of the GYS1 gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in GYS1 are known to be pathogenic (PMID: 17928598, 19699667).

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