ClinVar Miner

Submissions for variant NM_004104.5(FASN):c.3748G>A (p.Gly1250Ser)

dbSNP: rs868514644
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000814958 SCV000955397 uncertain significance Epileptic encephalopathy 2020-09-15 criteria provided, single submitter clinical testing The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This sequence change replaces glycine with serine at codon 1250 of the FASN protein (p.Gly1250Ser). The glycine residue is highly conserved and there is a small physicochemical difference between glycine and serine. This variant has not been reported in the literature in individuals with FASN-related conditions. ClinVar contains an entry for this variant (Variation ID: 658187). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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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