chr16-66387038-A-T

Position:

• chr16-66387038-A-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_001795.5(CDH5):​c.440A>T​(p.Asn147Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: CDH5 NM_001795.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.74

Genes affected

CDH5 (HGNC:1764): (cadherin 5) This gene encodes a classical cadherin of the cadherin superfamily. The encoded preproprotein is proteolytically processed to generate the mature glycoprotein. This calcium-dependent cell-cell adhesion molecule is comprised of five extracellular cadherin repeats, a transmembrane region and a highly conserved cytoplasmic tail. Functioning as a classical cadherin by imparting to cells the ability to adhere in a homophilic manner, this protein plays a role in endothelial adherens junction assembly and maintenance. This gene is located in a gene cluster in a region on the long arm of chromosome 16 that is involved in loss of heterozygosity events in breast and prostate cancer. [provided by RefSeq, Nov 2015]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a binding_site (size 0) in uniprot entity CADH5_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.952

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CDH5	NM_001795.5	c.440A>T	p.Asn147Ile	missense_variant	3/12	ENST00000341529.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CDH5	ENST00000341529.8	c.440A>T	p.Asn147Ile	missense_variant	3/12	1	NM_001795.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 13, 2023

The c.440A>T (p.N147I) alteration is located in exon 3 (coding exon 2) of the CDH5 gene. This alteration results from a A to T substitution at nucleotide position 440, causing the asparagine (N) at amino acid position 147 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.82
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.17
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.91	.;D;D;T
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.92
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.95	D;.;D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.95	D;D;D;D
MetaSVM	Uncertain	0.59	D
MutationAssessor	Pathogenic	4.7	H;H;H;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.53	T
PROVEAN	Pathogenic	-8.2	.;D;.;.
REVEL	Pathogenic	0.76
Sift	Pathogenic	0.0	.;D;.;.
Sift4G	Pathogenic	0.0	D;D;.;D
Polyphen		0.99	.;D;D;.
Vest4		0.84
MutPred		0.77		Loss of catalytic residue at N147 (P = 0.0211);Loss of catalytic residue at N147 (P = 0.0211);Loss of catalytic residue at N147 (P = 0.0211);Loss of catalytic residue at N147 (P = 0.0211);
MVP		0.94
MPC		0.72
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.84
gMVP		0.88

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: chr16-66420941;