rs368690400
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BS2_Supporting
The NM_004360.5(CDH1):c.1501G>A(p.Val501Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,614,112 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V501L) has been classified as Likely benign.
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: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| CDH1 | NM_004360.5 | c.1501G>A | p.Val501Met | missense_variant | Exon 10 of 16 | ENST00000261769.10 | NP_004351.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152220Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000239 AC: 6AN: 251476 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.00000752 AC: 11AN: 1461892Hom.: 0 Cov.: 32 AF XY: 0.00000963 AC XY: 7AN XY: 727246 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152220Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74362 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary diffuse gastric adenocarcinoma Uncertain:4
This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 501 of the CDH1 protein (p.Val501Met). This variant is present in population databases (rs368690400, gnomAD 0.02%). This missense change has been observed in individual(s) with breast cancer and/or gastric cancer (PMID: 34326862, 36436516). ClinVar contains an entry for this variant (Variation ID: 142357). 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. -
PS4_Supporting (PMID: 30311375) -
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. -
not provided Uncertain:4
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Has not been previously published as a pathogenic or benign germline variant to our knowledge; In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 27904775, 15235021, 22850631, 32175104, 30287823) -
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The CDH1 c.1501G>A p.Val501Met variant (rs368690400) is reported in the literature in individuals affected with cancer (Bhai 2021, Garcia-Pelaez 2023, Hoang 2020), but also in healthy controls (Mizukami 2020, Momozawa 2018, Okawa 2023). This variant is also reported in ClinVar (Variation ID: 142357). This variant is found in the general population with an overall allele frequency of 0.003% (7/282876 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.285). Due to limited information, the clinical significance of this variant is uncertain at this time. References: National Comprehensive Cancer Network. Genetic/Familial High-Risk Assessment: Breast, Ovarian, and Pancreatic [(2.2024)]: https://www.nccn.org/professionals/physician_gls/pdf/genetics_bop.pdf Bhai P et al. Analysis of Sequence and Copy Number Variants in Canadian Patient Cohort With Familial Cancer Syndromes Using a Unique Next Generation Sequencing Based Approach. Front Genet. 2021 Jul 13;12:698595. PMID: 34326862. Garcia-Pelaez J et al. Genotype-first approach to identify associations between CDH1 germline variants and cancer phenotypes: a multicentre study by the European Reference Network on Genetic Tumour Risk Syndromes. Lancet Oncol. 2023 Jan;24(1):91-106. PMID: 36436516 Hoang T et al. Gene mutations distinguishing gastric from colorectal and esophageal adenocarcinomas. J Gastrointest Oncol. 2020 Feb;11(1):45-54. PMID: 32175104. Mizukami K et al. Genetic characterization of pancreatic cancer patients and prediction of carrier status of germline pathogenic variants in cancer-predisposing genes. EBioMedicine. 2020 Oct;60:103033. PMID: 32980694. Momozawa Y et al. Germline pathogenic variants of 11 breast cancer genes in 7,051 Japanese patients and 11,241 controls. Nat Commun. 2018 Oct 4;9(1):4083. PMID: 30287823. Okawa Y et al. Hereditary cancer variants and homologous recombination deficiency in biliary tract cancer. J Hepatol. 2023 Feb;78(2):333-342. PMID: 36243179. -
Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
This missense variant replaces valine with methionine at codon 501 of the CDH1 protein. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with breast cancer and gastric cancer (PMID: 33471991, 34326862, 36436516). This variant has been identified in 7/282876 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. -
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not specified Uncertain:2
Variant summary: CDH1 c.1501G>A (p.Val501Met) results in a conservative amino acid change located in the Cadherin domain of the encoded protein sequence. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change. The variant allele was found at a frequency of 2.4e-05 in 251476 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.1501G>A has been observed in individuals affected with cancers including breast cancer and/or gastric cancer (e.g., Bhai_2021). This report does not provide unequivocal conclusions about association of the variant with Breast Cancer. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 30287823, 27904775, 34326862). ClinVar contains an entry for this variant (Variation ID: 142357). Based on the evidence outlined above, the variant was classified as uncertain significance. -
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Familial cancer of breast;C0476089:Endometrial carcinoma;C1140680:Ovarian cancer;C1708349:Hereditary diffuse gastric adenocarcinoma;C4551988:Blepharocheilodontic syndrome 1 Uncertain:1
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CDH1-related diffuse gastric and lobular breast cancer syndrome Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at