ClinVar Miner

Submissions for variant NM_001184880.2(PCDH19):c.1130A>T (p.Asp377Val)

dbSNP: rs1555985306
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000560645 SCV000640255 pathogenic Developmental and epileptic encephalopathy, 9 2020-11-05 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Asp377 amino acid residue in PCDH19. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 20713952, 22848613, 22267240). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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 disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has been observed in individual(s) with clinical features of PCDH19-related condition (Invitae). In at least one individual the variant was observed to be de novo. This variant is not present in population databases (ExAC no frequency). This sequence change replaces aspartic acid with valine at codon 377 of the PCDH19 protein (p.Asp377Val). The aspartic acid residue is highly conserved and there is a large physicochemical difference between aspartic acid and valine.

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