16-68829012-A-C

Position:

• chr16-68829012-A-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_004360.5(CDH1):​c.2296-642A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.186 in 152,100 control chromosomes in the GnomAD database, including 4,256 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 0.19 (4256 hom., cov: 32)
• Consequence: CDH1 NM_004360.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0520

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.416 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDH1	NM_004360.5	c.2296-642A>C		intron_variant		ENST00000261769.10	NP_004351.1
CDH1	NM_001317184.2	c.2113-642A>C		intron_variant			NP_001304113.1
CDH1	NM_001317185.2	c.748-642A>C		intron_variant			NP_001304114.1
CDH1	NM_001317186.2	c.331-642A>C		intron_variant			NP_001304115.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH1	ENST00000261769.10	c.2296-642A>C		intron_variant		1	NM_004360.5	ENSP00000261769	P1

Frequencies

GnomAD3 genomes AF: 0.186 AC: 28228 AN: 151982 Hom.: 4253 Cov.: 32

Gnomad AFR AF: 0.421

Gnomad AMI AF: 0.00439

Gnomad AMR AF: 0.152

Gnomad ASJ AF: 0.0712

Gnomad EAS AF: 0.167

Gnomad SAS AF: 0.0793

Gnomad FIN AF: 0.0737

Gnomad MID AF: 0.0411

Gnomad NFE AF: 0.0869

Gnomad OTH AF: 0.141

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

GnomAD4 genome AF: 0.186 AC: 28266 AN: 152100 Hom.: 4256 Cov.: 32 AF XY: 0.181 AC XY: 13482 AN XY: 74364

Gnomad4 AFR AF: 0.421

Gnomad4 AMR AF: 0.152

Gnomad4 ASJ AF: 0.0712

Gnomad4 EAS AF: 0.166

Gnomad4 SAS AF: 0.0779

Gnomad4 FIN AF: 0.0737

Gnomad4 NFE AF: 0.0869

Gnomad4 OTH AF: 0.146

Alfa AF: 0.0972 Hom.: 1716

Bravo AF: 0.206

Asia WGS AF: 0.152 AC: 528 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	1.7
DANN	Benign	0.68

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

Publications

LitVar

Other links and lift over

dbSNP: rs9927789; hg19: chr16-68862915;