chr16-68775737-T-A

Variant names:

• chr16-68775737-T-A
• rs9282650
• NM_004360.5:c.164-25933T>A

Variant summary

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

The NM_004360.5(CDH1):​c.164-25933T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.294 in 152,176 control chromosomes in the GnomAD database, including 6,665 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 0.29 (6665 hom., cov: 33)
• Consequence: CDH1 NM_004360.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.252
• 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

ENSG00000309644 (HGNC:):

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.305 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH1	NM_004360.5	c.164-25933T>A		intron_variant	Intron 2 of 15	ENST00000261769.10	NP_004351.1
CDH1	NM_001317184.2	c.164-25933T>A		intron_variant	Intron 2 of 14		NP_001304113.1
CDH1	NM_001317185.2	c.-1452-25933T>A		intron_variant	Intron 2 of 15		NP_001304114.1
CDH1	NM_001317186.2	c.-1656-25933T>A		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.164-25933T>A		intron_variant	Intron 2 of 15	1	NM_004360.5	ENSP00000261769.4

Frequencies

GnomAD3 genomes AF: 0.294 AC: 44659 AN: 152058 Hom.: 6662 Cov.: 33

Gnomad AFR AF: 0.302

Gnomad AMI AF: 0.309

Gnomad AMR AF: 0.313

Gnomad ASJ AF: 0.404

Gnomad EAS AF: 0.283

Gnomad SAS AF: 0.248

Gnomad FIN AF: 0.239

Gnomad MID AF: 0.332

Gnomad NFE AF: 0.290

Gnomad OTH AF: 0.308

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

GnomAD4 genome AF: 0.294 AC: 44687 AN: 152176 Hom.: 6665 Cov.: 33 AF XY: 0.292 AC XY: 21745 AN XY: 74400

African (AFR) AF: 0.302 AC: 12559 AN: 41524

American (AMR) AF: 0.312 AC: 4772 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.404 AC: 1402 AN: 3472

East Asian (EAS) AF: 0.284 AC: 1469 AN: 5178

South Asian (SAS) AF: 0.248 AC: 1198 AN: 4826

European-Finnish (FIN) AF: 0.239 AC: 2536 AN: 10590

Middle Eastern (MID) AF: 0.340 AC: 100 AN: 294

European-Non Finnish (NFE) AF: 0.290 AC: 19727 AN: 67996

Other (OTH) AF: 0.305 AC: 643 AN: 2108

Alfa AF: 0.168 Hom.: 312

Bravo AF: 0.298

Asia WGS AF: 0.313 AC: 1088 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	7.1
DANN	Benign	0.63
PhyloP100		0.25
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: rs9282650; hg19: chr16-68809640;