16-68785104-C-T

Variant names:

• chr16-68785104-C-T
• rs1981871
• NM_004360.5:c.164-16566C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_004360.5(CDH1):​c.164-16566C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.273 in 152,076 control chromosomes in the GnomAD database, including 5,788 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.27 (5788 hom., cov: 32)
• Consequence: CDH1 NM_004360.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.37
• Publications: 9 publications found

Genes affected

CDH1 (HGNC:1748): (cadherin 1) This gene encodes a classical cadherin of the cadherin superfamily. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature glycoprotein. This calcium-dependent cell-cell adhesion protein is comprised of five extracellular cadherin repeats, a transmembrane region and a highly conserved cytoplasmic tail. Mutations in this gene are correlated with gastric, breast, colorectal, thyroid and ovarian cancer. Loss of function of this gene is thought to contribute to cancer progression by increasing proliferation, invasion, and/or metastasis. The ectodomain of this protein mediates bacterial adhesion to mammalian cells and the cytoplasmic domain is required for internalization. This gene is present in a gene cluster with other members of the cadherin family on chromosome 16. [provided by RefSeq, Nov 2015]

CDH1 Gene-Disease associations (from GenCC):

• blepharocheilodontic syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae), G2P
• CDH1-related diffuse gastric and lobular breast cancer syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P
• hereditary breast carcinoma

  Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
• hereditary diffuse gastric adenocarcinoma

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
• cleft soft palate

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• orofacial cleft 3

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• blepharocheilodontic syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial ovarian cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.286 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH1	NM_004360.5	c.164-16566C>T		intron_variant	Intron 2 of 15	ENST00000261769.10	NP_004351.1
CDH1	NM_001317184.2	c.164-16566C>T		intron_variant	Intron 2 of 14		NP_001304113.1
CDH1	NM_001317185.2	c.-1452-16566C>T		intron_variant	Intron 2 of 15		NP_001304114.1
CDH1	NM_001317186.2	c.-1656-16566C>T		intron_variant	Intron 2 of 14		NP_001304115.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDH1	ENST00000261769.10	c.164-16566C>T		intron_variant	Intron 2 of 15	1	NM_004360.5	ENSP00000261769.4

Frequencies

GnomAD3 genomes AF: 0.273 AC: 41523 AN: 151958 Hom.: 5792 Cov.: 32

Gnomad AFR AF: 0.262

Gnomad AMI AF: 0.313

Gnomad AMR AF: 0.250

Gnomad ASJ AF: 0.396

Gnomad EAS AF: 0.208

Gnomad SAS AF: 0.254

Gnomad FIN AF: 0.241

Gnomad MID AF: 0.316

Gnomad NFE AF: 0.289

Gnomad OTH AF: 0.284

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.273 AC: 41531 AN: 152076 Hom.: 5788 Cov.: 32 AF XY: 0.271 AC XY: 20178 AN XY: 74328

African (AFR) AF: 0.262 AC: 10865 AN: 41486

American (AMR) AF: 0.250 AC: 3811 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.396 AC: 1374 AN: 3470

East Asian (EAS) AF: 0.208 AC: 1078 AN: 5182

South Asian (SAS) AF: 0.255 AC: 1231 AN: 4822

European-Finnish (FIN) AF: 0.241 AC: 2546 AN: 10572

Middle Eastern (MID) AF: 0.327 AC: 96 AN: 294

European-Non Finnish (NFE) AF: 0.289 AC: 19653 AN: 67962

Other (OTH) AF: 0.281 AC: 592 AN: 2106

Alfa AF: 0.288 Hom.: 1113

Bravo AF: 0.269

Asia WGS AF: 0.273 AC: 951 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	0.41
DANN	Benign	0.67
PhyloP100		-1.4
Mutation Taster		=100/0	polymorphism (auto)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1981871; hg19: chr16-68819007;