NM_004360.5:c.1353T>C
Variant summary
Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2
The NM_004360.5(CDH1):c.1353T>C(p.Ile451Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000247 in 1,614,236 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. I451I) has been classified as Benign.
Frequency
Consequence
NM_004360.5 synonymous
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: Benign. The variant received -17 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| CDH1 | NM_004360.5 | c.1353T>C | p.Ile451Ile | synonymous_variant | Exon 10 of 16 | ENST00000261769.10 | NP_004351.1 | |
| CDH1 | NM_001317184.2 | c.1170T>C | p.Ile390Ile | synonymous_variant | Exon 9 of 15 | NP_001304113.1 | ||
| CDH1 | NM_001317185.2 | c.-196T>C | 5_prime_UTR_variant | Exon 10 of 16 | NP_001304114.1 | |||
| CDH1 | NM_001317186.2 | c.-467T>C | 5_prime_UTR_variant | Exon 10 of 15 | NP_001304115.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000138 AC: 21AN: 152236Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000676 AC: 17AN: 251472 AF XY: 0.0000441 show subpopulations
GnomAD4 exome AF: 0.000259 AC: 378AN: 1461882Hom.: 0 Cov.: 32 AF XY: 0.000253 AC XY: 184AN XY: 727242 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000138 AC: 21AN: 152354Hom.: 0 Cov.: 32 AF XY: 0.000134 AC XY: 10AN XY: 74498 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:3
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
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Hereditary cancer-predisposing syndrome Benign:3
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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. -
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Hereditary diffuse gastric adenocarcinoma Benign:2
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This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Breast and/or ovarian cancer Benign:1
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CDH1-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Variant summary: The CDH1 c.1353T>C (p.Ile451Ile) variant involves the alteration of a non-conserved nucleotide, resulting in a synonymous change. One in silico tool predicts a disease-causing outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. This variant was found in 10/121402 control chromosomes, predominantly observed in the European (Non-Finnish) subpopulation at a frequency of 0.00015 (10/66738). This frequency is about 5 times the estimated maximal expected allele frequency of a pathogenic CDH1 variant (0.0000283), suggesting this is likely a benign polymorphism found primarily in the populations of European (Non-Finnish) origin. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign/likely benign. Taken together, this variant is classified as benign. -
Malignant tumor of breast Benign:1
The CDH1 p.Ile451= variant was not identified in the literature nor was it identified in the Cosmic, or Zhejiang University databases. The variant was identified in dbSNP (ID: rs114192597) as "With Likely benign allele", ClinVar (classified as benign by GeneDx, Quest Diagnostics Nichols Institute San Juan Capistrano and Integrated Genetics/Laboratory Corporation of America; as likely benign by Ambry genetics, Invitae, Color Genomics), and Clinvitae databases. The variant was identified in control databases in 22 of 277240 chromosomes at a frequency of 0.0001 (Genome Aggregation Database Feb 27, 2017). Breakdown of the observations by population include African in 1 of 24040 chromosomes (freq: 0.00004), Latino in 1 of 34420 chromosomes (freq: 0.00003), and European in 20 of 126716 chromosomes (freq: 0.0002), while the variant was not observed in the Other, Ashkenazi Jewish, East Asian, Finnish, and South Asian populations. The p.Ile451= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a greater than 10% difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at