chr16-68811717-C-G

Position:

• chr16-68811717-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004360.5(CDH1):​c.866C>G​(p.Ala289Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A289V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CDH1 NM_004360.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.945

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 Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CDH1	NM_004360.5	c.866C>G	p.Ala289Gly	missense_variant	7/16	ENST00000261769.10
CDH1	NM_001317184.2	c.866C>G	p.Ala289Gly	missense_variant	7/15
CDH1	NM_001317185.2	c.-750C>G		5_prime_UTR_variant	7/16
CDH1	NM_001317186.2	c.-954C>G		5_prime_UTR_variant	7/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CDH1	ENST00000261769.10	c.866C>G	p.Ala289Gly	missense_variant	7/16	1	NM_004360.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.092	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.49	T;T;T;.;.
Eigen	Benign	-0.38
Eigen_PC	Benign	-0.43
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.74	T;T;T;T;T
M_CAP	Benign	0.030	D
MetaRNN	Uncertain	0.50	D;D;D;D;D
MetaSVM	Benign	-0.88	T
MutationAssessor	Uncertain	2.1	M;.;.;.;M
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.36	T
PROVEAN	Uncertain	-2.9	D;.;.;.;D
REVEL	Benign	0.058
Sift	Benign	0.044	D;.;.;.;T
Sift4G	Uncertain	0.053	T;T;T;T;T
Polyphen		0.60	P;.;.;.;.
Vest4		0.49
MutPred		0.67		Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);
MVP		0.78
MPC		0.53
ClinPred		0.86	D
GERP RS		2.6
Varity_R		0.44
gMVP		0.43

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-68845620;