rs371594080

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP2BS2

The NM_001184880.2(PCDH19):​c.2828G>A​(p.Gly943Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000994 in 1,207,750 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000010 ( 0 hom. 3 hem. )

Consequence

PCDH19
NM_001184880.2 missense

Scores

1
6
10

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.75

Publications

0 publications found
Variant links:
Genes affected
PCDH19 (HGNC:14270): (protocadherin 19) The protein encoded by this gene is a member of the delta-2 protocadherin subclass of the cadherin superfamily. The encoded protein is thought to be a calcium-dependent cell-adhesion protein that is primarily expressed in the brain. Mutations in this gene on human chromosome X are associated with sporadic infantile epileptic encephalopathy and to a female-restricted form of epilepsy (EFMR; also known as PCDH19RE). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]
PCDH19 Gene-Disease associations (from GenCC):
  • developmental and epileptic encephalopathy, 9
    Inheritance: XL, Unknown Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • X-linked complex neurodevelopmental disorder
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • Dravet syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 107 curated pathogenic missense variants (we use a threshold of 10). The gene has 20 curated benign missense variants. Gene score misZ: 2.5929 (below the threshold of 3.09). Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to Dravet syndrome, developmental and epileptic encephalopathy, 9, X-linked complex neurodevelopmental disorder.
BS2
High AC in GnomAdExome4 at 11 AD,XL,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCDH19NM_001184880.2 linkc.2828G>A p.Gly943Glu missense_variant Exon 5 of 6 ENST00000373034.8 NP_001171809.1
PCDH19NM_001105243.2 linkc.2687G>A p.Gly896Glu missense_variant Exon 4 of 5 NP_001098713.1
PCDH19NM_020766.3 linkc.2684G>A p.Gly895Glu missense_variant Exon 4 of 5 NP_065817.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCDH19ENST00000373034.8 linkc.2828G>A p.Gly943Glu missense_variant Exon 5 of 6 1 NM_001184880.2 ENSP00000362125.4
PCDH19ENST00000255531.8 linkc.2687G>A p.Gly896Glu missense_variant Exon 4 of 5 1 ENSP00000255531.7
PCDH19ENST00000420881.6 linkc.2684G>A p.Gly895Glu missense_variant Exon 4 of 5 1 ENSP00000400327.2

Frequencies

GnomAD3 genomes
AF:
0.00000894
AC:
1
AN:
111834
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.0000325
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000110
AC:
2
AN:
181624
AF XY:
0.0000148
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000246
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000100
AC:
11
AN:
1095916
Hom.:
0
Cov.:
31
AF XY:
0.00000830
AC XY:
3
AN XY:
361430
show subpopulations
African (AFR)
AF:
0.0000379
AC:
1
AN:
26361
American (AMR)
AF:
0.00
AC:
0
AN:
35186
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19353
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30177
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54082
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40432
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4108
European-Non Finnish (NFE)
AF:
0.0000119
AC:
10
AN:
840228
Other (OTH)
AF:
0.00
AC:
0
AN:
45989
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000894
AC:
1
AN:
111834
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34030
show subpopulations
African (AFR)
AF:
0.0000325
AC:
1
AN:
30760
American (AMR)
AF:
0.00
AC:
0
AN:
10535
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2646
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3542
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2645
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6092
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
238
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53179
Other (OTH)
AF:
0.00
AC:
0
AN:
1511
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000152
AC:
1
ExAC
AF:
0.0000248
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Nov 01, 2020
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Developmental and epileptic encephalopathy, 9 Uncertain:1
Oct 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 943 of the PCDH19 protein (p.Gly943Glu). This variant is present in population databases (rs371594080, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with PCDH19-related conditions. ClinVar contains an entry for this variant (Variation ID: 465302). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PCDH19 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.0080
T
BayesDel_noAF
Benign
-0.20
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.049
.;T;.
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Pathogenic
0.59
D
MetaRNN
Uncertain
0.44
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Uncertain
2.2
.;M;.
PhyloP100
3.7
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-1.2
N;N;N
REVEL
Benign
0.099
Sift
Benign
0.052
T;D;D
Sift4G
Benign
0.11
T;T;T
Polyphen
0.93, 0.83
.;P;P
Vest4
0.49
MVP
0.46
MPC
0.89
ClinPred
0.34
T
GERP RS
6.0
Varity_R
0.34
gMVP
0.28
Mutation Taster
=69/31
polymorphism

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

Other links and lift over

dbSNP: rs371594080; hg19: chrX-99596921; API