ClinVar Miner

Submissions for variant NM_005373.3(MPL):c.690+2T>A

dbSNP: rs2153916885
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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 RCV002003697 SCV002271440 likely pathogenic Congenital amegakaryocytic thrombocytopenia; Essential thrombocythemia 2021-03-10 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, but this prediction has not been confirmed by published transcriptional studies. This variant has not been reported in the literature in individuals with MPL-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change affects a donor splice site in intron 4 of the MPL 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 MPL are known to be pathogenic (PMID: 8073287, 11133753).

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