rs1554660803
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5
The NM_004817.4(TJP2):c.813_814del(p.Ala273ProfsTer27) 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 (no stars). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 33)
Consequence
TJP2
NM_004817.4 frameshift
NM_004817.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 0.610
Genes affected
TJP2 (HGNC:11828): (tight junction protein 2) This gene encodes a zonula occluden that is a member of the membrane-associated guanylate kinase homolog family. The encoded protein functions as a component of the tight junction barrier in epithelial and endothelial cells and is necessary for proper assembly of tight junctions. Mutations in this gene have been identified in patients with hypercholanemia, and genomic duplication of a 270 kb region including this gene causes autosomal dominant deafness-51. Alternatively spliced transcripts encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 11 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 9-69221353-GGC-G is Pathogenic according to our data. Variant chr9-69221353-GGC-G is described in ClinVar as [Pathogenic]. Clinvar id is 438788.Status of the report is no_assertion_criteria_provided, 0 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TJP2 | NM_004817.4 | c.813_814del | p.Ala273ProfsTer27 | frameshift_variant | 5/23 | ENST00000377245.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TJP2 | ENST00000377245.9 | c.813_814del | p.Ala273ProfsTer27 | frameshift_variant | 5/23 | 1 | NM_004817.4 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Cholestasis, progressive familial intrahepatic, 4 Pathogenic:1
Pathogenic, no assertion criteria provided | research | Donald Williams Parsons Laboratory, Baylor College of Medicine | Nov 06, 2013 | This frameshift variant is categorized as deleterious according to ACMG guidelines (PMID:18414213). It was found once in this study homozygous in a 2-year-old male with hepatocellular carcinoma, severe cholestatic liver disease requiring transplant. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Name
Calibrated prediction
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Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at