Variant 5-19544003-T-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_004934.5(CDH18):c.1256A>T(p.Tyr419Phe) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000823 in 1,531,016 control chromosomes in the GnomAD database, including 1 homozygotes. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000085 ( 1 hom. )

Consequence

CDH18
NM_004934.5 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.70

Variant links:

Genes affected

CDH18 (HGNC:1757): (cadherin 18) This gene encodes a type II classical cadherin from the cadherin superfamily of integral membrane proteins that mediate calcium-dependent cell-cell adhesion. Mature cadherin proteins are composed of a large N-terminal extracellular domain, a single membrane-spanning domain, and a small, highly conserved C-terminal cytoplasmic domain. Type II (atypical) cadherins are defined based on their lack of a HAV cell adhesion recognition sequence specific to type I cadherins. This particular cadherin is expressed specifically in the central nervous system and is putatively involved in synaptic adhesion, axon outgrowth and guidance. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2014]

CDH18 links:

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ACMG classification

Classification made for transcript

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
CDH18	NM_004934.5 linkuse as main transcript	c.1256A>T	p.Tyr419Phe	missense_variant, splice_region_variant	9/13	ENST00000382275.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CDH18	ENST00000382275.6 linkuse as main transcript	c.1256A>T	p.Tyr419Phe	missense_variant, splice_region_variant	9/13	1	NM_004934.5	P1	Q13634-1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000395

AC:

AN:

228008

Hom.:

AF XY:

0.0000484

AC XY:

AN XY:

123998

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000359

Gnomad ASJ exome

AF:

0.000233

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000560

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000849

AC:

117

AN:

1378878

Hom.:

Cov.:

AF XY:

0.0000846

AC XY:

AN XY:

685832

show subpopulations

Gnomad4 AFR exome

AF:

0.0000321

Gnomad4 AMR exome

AF:

0.0000268

Gnomad4 ASJ exome

AF:

0.000170

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000103

Gnomad4 OTH exome

AF:

0.0000354

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74316

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000568

Hom.:

Bravo

AF:

0.0000491

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 06, 2022

The c.1256A>T (p.Y419F) alteration is located in exon 9 (coding exon 7) of the CDH18 gene. This alteration results from a A to T substitution at nucleotide position 1256, causing the tyrosine (Y) at amino acid position 419 to be replaced by a phenylalanine (F). 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

Benign

0.16

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.31

T;T;T;T;.;.;.

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

.;D;.;D;D;D;D

M_CAP

Benign

0.046

MetaRNN

Uncertain

0.63

D;D;D;D;D;D;D

MetaSVM

Benign

-0.35

MutationAssessor

Uncertain

2.1

M;M;M;.;M;.;.

MutationTaster

Benign

1.0

D;D;D;D;D;D;D

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.5

D;D;D;D;D;D;D

REVEL

Benign

0.28

Sift

Benign

0.14

T;T;T;T;T;T;T

Sift4G

Benign

0.18

T;T;T;T;T;T;T

Polyphen

0.70

P;P;P;.;.;.;.

Vest4

0.62

MutPred

0.64

Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;Loss of sheet (P = 0.0817);

MVP

0.75

MPC

0.54

ClinPred

0.83

GERP RS

5.4

Varity_R

0.38

gMVP

0.63

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over