Variant 5-19543889-G-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.1370C>T(p.Thr457Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000014 in 1,429,490 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CDH18
NM_004934.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.36

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	Protein	UniProt
CDH18	NM_004934.5 linkuse as main transcript	c.1370C>T	p.Thr457Ile	missense_variant	9/13	ENST00000382275.6	NP_004925.1	Q13634-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDH18	ENST00000382275.6 linkuse as main transcript	c.1370C>T	p.Thr457Ile	missense_variant	9/13	1	NM_004934.5	ENSP00000371710.1		Q13634-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1429490

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

711148

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000124

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.16e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Nov 27, 2024

The c.1370C>T (p.T457I) alteration is located in exon 9 (coding exon 7) of the CDH18 gene. This alteration results from a C to T substitution at nucleotide position 1370, causing the threonine (T) at amino acid position 457 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

Uncertain

0.37

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.070

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

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

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.95

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

M_CAP

Benign

0.066

MetaRNN

Uncertain

0.70

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

MetaSVM

Benign

-0.42

MutationAssessor

Uncertain

2.2

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

PrimateAI

Uncertain

0.75

PROVEAN

Pathogenic

-5.1

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

REVEL

Uncertain

0.39

Sift

Pathogenic

0.0

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

Sift4G

Uncertain

0.0080

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

Polyphen

0.99

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

Vest4

0.83

MutPred

0.57

Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);Loss of loop (P = 0.0986);.;Loss of loop (P = 0.0986);

MVP

0.85

MPC

0.58

ClinPred

1.0

GERP RS

4.1

Varity_R

0.81

gMVP

0.74

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over