X-43949861-T-TG
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_000266.4(NDP):c.339_340insC(p.Met114HisfsTer35) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 22)
Consequence
NDP
NM_000266.4 frameshift
NM_000266.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 3.06
Genes affected
NDP (HGNC:7678): (norrin cystine knot growth factor NDP) This gene encodes a secreted protein with a cystein-knot motif that activates the Wnt/beta-catenin pathway. The protein forms disulfide-linked oligomers in the extracellular matrix. Mutations in this gene result in Norrie disease and X-linked exudative vitreoretinopathy. [provided by RefSeq, Feb 2009]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 12 ACMG points.
PVS1
?
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 21 pathogenic variants in the truncated region.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant X-43949861-T-TG is Pathogenic according to our data. Variant chrX-43949861-T-TG is described in ClinVar as [Pathogenic]. Clinvar id is 2013719.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NDP | NM_000266.4 | c.339_340insC | p.Met114HisfsTer35 | frameshift_variant | 3/3 | ENST00000642620.1 | |
NDP-AS1 | NR_046631.1 | n.131dup | non_coding_transcript_exon_variant | 1/6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NDP | ENST00000642620.1 | c.339_340insC | p.Met114HisfsTer35 | frameshift_variant | 3/3 | NM_000266.4 | P1 | ||
NDP-AS1 | ENST00000435093.1 | n.131dup | non_coding_transcript_exon_variant | 1/5 | 3 | ||||
NDP | ENST00000647044.1 | c.339_340insC | p.Met114HisfsTer35 | frameshift_variant | 4/4 | P1 | |||
NDP | ENST00000470584.1 | n.383_384insC | non_coding_transcript_exon_variant | 3/3 | 2 |
Frequencies
GnomAD3 genomes ? Cov.: 22
GnomAD3 genomes
?
Cov.:
22
GnomAD4 exome Cov.: 30
GnomAD4 exome
Cov.:
30
GnomAD4 genome ? Cov.: 22
GnomAD4 genome
?
Cov.:
22
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jul 03, 2022 | This variant is not present in population databases (gnomAD no frequency). This sequence change results in a frameshift in the NDP gene (p.Met114Hisfs*35). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 20 amino acid(s) of the NDP protein and extend the protein by 14 additional amino acid residues. This variant has not been reported in the literature in individuals affected with NDP-related conditions. For these reasons, this variant has been classified as Pathogenic. This variant disrupts a region of the NDP protein in which other variant(s) (p.Cys131*) have been determined to be pathogenic (PMID: 25711638; Invitae). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. - |
Computational scores
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Calibrated prediction
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Prediction
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.