ClinVar Miner

Submissions for variant NM_002382.5(MAX):c.296-1G>A (rs1555340265)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000639337 SCV000760909 uncertain significance Hereditary Paraganglioma-Pheochromocytoma Syndromes 2017-11-18 criteria provided, single submitter clinical testing This sequence change affects an acceptor splice site in the last intron (intron 4) of the MAX gene. While this is not anticipated to result in nonsense mediated decay, it likely alters RNA splicing and results in a disrupted protein product. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with MAX-related disease. Nucleotide substitutions within the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). 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. Experimental studies demonstrate that the C-terminal domain of the MAX protein is essential for protein localization to the nucleus and suppression of MYC transactivation activity (PMID: 1459463, 1730412, 7630640). While studies regarding the the effect of this particular variant have not been reported, loss of the C-terminal region of the MAX protein may be pathogenic. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

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