16-68813416-C-G
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_004360.5(CDH1):c.1241C>G(p.Thr414Ser) 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 152,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign 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. T414N) 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.1241C>G | p.Thr414Ser | missense_variant | Exon 9 of 16 | ENST00000261769.10 | NP_004351.1 | |
CDH1 | NM_001317185.2 | c.-375C>G | 5_prime_UTR_variant | Exon 9 of 16 | NP_001304114.1 | |||
CDH1 | NM_001317186.2 | c.-579C>G | 5_prime_UTR_variant | Exon 9 of 15 | NP_001304115.1 | |||
CDH1 | NM_001317184.2 | c.1137+1153C>G | intron_variant | Intron 8 of 14 | NP_001304113.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152136Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome Cov.: 32
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152136Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74308 show subpopulations
ClinVar
Submissions by phenotype
Hereditary diffuse gastric adenocarcinoma Uncertain:2
This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 414 of the CDH1 protein (p.Thr414Ser). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with breast cancer (PMID: 36436516). ClinVar contains an entry for this variant (Variation ID: 481690). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -
PM2 (PMID: 30311375) -
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces threonine with serine at codon 414 of the CDH1 protein. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in two individuals with a family history of breast cancer (PMID: 36436516). This variant has not been identified 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.T414S variant (also known as c.1241C>G), located in coding exon 9 of the CDH1 gene, results from a C to G substitution at nucleotide position 1241. The threonine at codon 414 is replaced by serine, an amino acid with similar properties. This alteration has been reported in two individuals with family histories of breast cancer (Garcia-Pelaez J et al. Lancet Oncol, 2023 Jan;24:91-106). This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated 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