18-66505222-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_021153.4(CDH19):ā€‹c.1909A>Gā€‹(p.Asn637Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,456,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.000014 ( 0 hom. )

Consequence

CDH19
NM_021153.4 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.51
Variant links:
Genes affected
CDH19 (HGNC:1758): (cadherin 19) This gene is one of three related type II cadherin genes situated in a cluster on chromosome 18. The encoded protein is a calcium dependent cell-cell adhesion glycoprotein containing five extracellular cadherin repeats. Loss of cadherins may be associated with cancer formation. Alternative splicing results in multiple transcript variants for this gene. [provided by RefSeq, Aug 2012]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.948

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDH19NM_021153.4 linkuse as main transcriptc.1909A>G p.Asn637Asp missense_variant 12/12 ENST00000262150.7 NP_066976.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDH19ENST00000262150.7 linkuse as main transcriptc.1909A>G p.Asn637Asp missense_variant 12/121 NM_021153.4 ENSP00000262150 P1Q9H159-1
CDH19ENST00000579658.5 linkuse as main transcriptc.*255A>G 3_prime_UTR_variant, NMD_transcript_variant 12/121 ENSP00000463085
CDH19ENST00000540086.5 linkuse as main transcriptc.*66A>G 3_prime_UTR_variant 10/102 ENSP00000439593 Q9H159-2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000407
AC:
1
AN:
245770
Hom.:
0
AF XY:
0.00000751
AC XY:
1
AN XY:
133096
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000895
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1456808
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
724796
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000230
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000282
Hom.:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

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 submitterclinical testingAmbry GeneticsMar 14, 2023The c.1909A>G (p.N637D) alteration is located in exon 12 (coding exon 11) of the CDH19 gene. This alteration results from a A to G substitution at nucleotide position 1909, causing the asparagine (N) at amino acid position 637 to be replaced by an aspartic acid (D). 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
0.23
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
-0.070
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.17
T
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.97
D
M_CAP
Uncertain
0.15
D
MetaRNN
Pathogenic
0.95
D
MetaSVM
Uncertain
0.67
D
MutationAssessor
Pathogenic
3.9
H
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-4.1
D
REVEL
Pathogenic
0.89
Sift
Uncertain
0.0080
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.80
MutPred
0.85
Loss of sheet (P = 0.0457);
MVP
1.0
MPC
0.28
ClinPred
1.0
D
GERP RS
5.2
Varity_R
0.60
gMVP
0.74

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.

Other links and lift over

dbSNP: rs747654871; hg19: chr18-64172459; API