16-68833428-G-T
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_004360.5(CDH1):c.2578G>T(p.Asp860Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,196 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D860H) has been classified as Uncertain significance.
Frequency
Consequence
NM_004360.5 missense
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 2 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_004360.5. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CDH1 | NM_004360.5 | MANE Select | c.2578G>T | p.Asp860Tyr | missense | Exon 16 of 16 | NP_004351.1 | ||
| CDH1 | NM_001317184.2 | c.2395G>T | p.Asp799Tyr | missense | Exon 15 of 15 | NP_001304113.1 | |||
| CDH1 | NM_001317185.2 | c.1030G>T | p.Asp344Tyr | missense | Exon 16 of 16 | NP_001304114.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| CDH1 | ENST00000261769.10 | TSL:1 MANE Select | c.2578G>T | p.Asp860Tyr | missense | Exon 16 of 16 | ENSP00000261769.4 | ||
| CDH1 | ENST00000422392.6 | TSL:1 | c.2395G>T | p.Asp799Tyr | missense | Exon 15 of 15 | ENSP00000414946.2 | ||
| CDH1 | ENST00000562836.5 | TSL:1 | n.2649G>T | non_coding_transcript_exon | Exon 15 of 15 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152196Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 1461878Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 727242
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152196Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74350 show subpopulations
ClinVar
Submissions by phenotype
not specified Uncertain:1
Hereditary diffuse gastric adenocarcinoma Uncertain:1
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. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with CDH1-related disease. ClinVar contains an entry for this variant (Variation ID: 463771). This variant is not present in population databases (ExAC no frequency). This sequence change replaces aspartic acid with tyrosine at codon 860 of the CDH1 protein (p.Asp860Tyr). The aspartic acid residue is highly conserved and there is a large physicochemical difference between aspartic acid and tyrosine.
Hereditary cancer-predisposing syndrome Uncertain:1
The p.D860Y variant (also known as c.2578G>T), located in coding exon 16 of the CDH1 gene, results from a G to T substitution at nucleotide position 2578. The aspartic acid at codon 860 is replaced by tyrosine, an amino acid with highly dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. 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