ClinVar Miner

Submissions for variant NM_004168.4(SDHA):c.457-2A>G

dbSNP: rs2126549179
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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 RCV001379214 SCV001576973 pathogenic Mitochondrial complex II deficiency, nuclear type 1; Paragangliomas 5 2023-10-30 criteria provided, single submitter clinical testing This sequence change affects an acceptor splice site in intron 4 of the SDHA 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 SDHA are known to be pathogenic (PMID: 22974104, 24781757). This variant is not present in population databases (gnomAD no frequency). Disruption of this splice site has been observed in individuals with clinical features of SDHA-related conditions (PMID: 26269449, 28384794). ClinVar contains an entry for this variant (Variation ID: 1067845). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic.

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