rs1555518270
Variant summary
Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2_SupportingPVS1_Moderate
This summary comes from the ClinGen Evidence Repository: The c.2594G>A p.(Trp865Ter) variant is predicted to result in a premature stop codon that leads to a truncated protein. However, it is located within the nonsense mediated decay resistance region and is downstream of the most 3' pathogenic variant, c.2506G>T p.(Glu836Ter), PVS1_Moderate. This variant is absent in the gnomAD cohort (PM2_Supporting; http://gnomad.broadinstitute.org). In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the CDH1 Variant Curation Expert Panel (CDH1 VCEP specifications version 3.1): PVS1_Moderate, PM2_Supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA396472624/MONDO:0007648/007
Frequency
Consequence
NM_004360.5 stop_gained
Scores
Clinical Significance
Conservation
Publications
- blepharocheilodontic syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae), G2P
- CDH1-related diffuse gastric and lobular breast cancer syndromeInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P
- hereditary breast carcinomaInheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
- hereditary diffuse gastric adenocarcinomaInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
- cleft soft palateInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- orofacial cleft 3Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- blepharocheilodontic syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Uncertain_significance. The variant received 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CDH1 | NM_004360.5 | c.2594G>A | p.Trp865* | stop_gained | Exon 16 of 16 | ENST00000261769.10 | NP_004351.1 | |
CDH1 | NM_001317184.2 | c.2411G>A | p.Trp804* | stop_gained | Exon 15 of 15 | NP_001304113.1 | ||
CDH1 | NM_001317185.2 | c.1046G>A | p.Trp349* | stop_gained | Exon 16 of 16 | NP_001304114.1 | ||
CDH1 | NM_001317186.2 | c.629G>A | p.Trp210* | stop_gained | Exon 15 of 15 | NP_001304115.1 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251474 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461876Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 727236 show subpopulations
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Hereditary diffuse gastric adenocarcinoma Uncertain:2
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
This sequence change results in a premature translational stop signal in the CDH1 gene (p.Trp865*). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 18 amino acids of the CDH1 protein. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with CDH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 496819). 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. -
CDH1-related diffuse gastric and lobular breast cancer syndrome Uncertain:1
The c.2594G>A p.(Trp865Ter) variant is predicted to result in a premature stop codon that leads to a truncated protein. However, it is located within the nonsense mediated decay resistance region and is downstream of the most 3' pathogenic variant, c.2506G>T p.(Glu836Ter), PVS1_Moderate. This variant is absent in the gnomAD cohort (PM2_Supporting; http://gnomad.broadinstitute.org). In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the CDH1 Variant Curation Expert Panel (CDH1 VCEP specifications version 3.1): PVS1_Moderate, PM2_Supporting. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.W865* variant (also known as c.2594G>A), located in coding exon 16 of the CDH1 gene, results from a G to A substitution at nucleotide position 2594. This changes the amino acid from a tryptophan to a stop codon within coding exon 16. This alteration occurs at the 3' terminus of theCDH1 gene, is not expected to trigger nonsense-mediated mRNAdecay, and only impacts the last 2%, 18 amino acids, of the protein. The exact functional effect of this alteration is unknown. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at