rs730881669
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP3BS2_Supporting
The NM_004360.5(CDH1):c.2219C>A(p.Pro740His) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. P740S) 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 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CDH1 | NM_004360.5 | c.2219C>A | p.Pro740His | missense_variant | Exon 14 of 16 | ENST00000261769.10 | NP_004351.1 | |
CDH1 | NM_001317184.2 | c.2036C>A | p.Pro679His | missense_variant | Exon 13 of 15 | NP_001304113.1 | ||
CDH1 | NM_001317185.2 | c.671C>A | p.Pro224His | missense_variant | Exon 14 of 16 | NP_001304114.1 | ||
CDH1 | NM_001317186.2 | c.254C>A | p.Pro85His | missense_variant | Exon 13 of 15 | NP_001304115.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152116Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251476 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461774Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727202 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152116Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74298 show subpopulations
ClinVar
Submissions by phenotype
Hereditary diffuse gastric adenocarcinoma Uncertain:2
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
This sequence change replaces proline, which is neutral and non-polar, with histidine, which is basic and polar, at codon 740 of the CDH1 protein (p.Pro740His). This variant is present in population databases (rs730881669, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with CDH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 182403). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces proline with histidine at codon 740 of the CDH1 protein. To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 1/251476 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
The p.P740H variant (also known as c.2219C>A), located in coding exon 14 of the CDH1 gene, results from a C to A substitution at nucleotide position 2219. The proline at codon 740 is replaced by histidine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 15235021, 22850631) -
Familial cancer of breast Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at