ClinVar Miner

Submissions for variant NM_001130823.3(DNMT1):c.1280G>A (p.Ser427Asn)

dbSNP: rs777569395
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001312390 SCV001502843 uncertain significance Hereditary sensory neuropathy-deafness-dementia syndrome 2022-02-08 criteria provided, single submitter clinical testing Variants that disrupt 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 create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 1013749). This variant has not been reported in the literature in individuals affected with DNMT1-related conditions. This variant is present in population databases (rs777569395, gnomAD 0.0009%). This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 427 of the DNMT1 protein (p.Ser427Asn). This variant also falls at the last nucleotide of exon 17, which is part of the consensus splice site for this exon. 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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