rs189342249

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001184880.2(PCDH19):​c.3127A>T​(p.Ile1043Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000438 in 1,209,621 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 23 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000063 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.000042 ( 0 hom. 22 hem. )

Consequence

PCDH19
NM_001184880.2 missense

Scores

5
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 1.39
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04887563).
BP6
Variant X-100296597-T-A is Benign according to our data. Variant chrX-100296597-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 206285.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1}. Variant chrX-100296597-T-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000628 (7/111502) while in subpopulation SAS AF= 0.00156 (4/2566). AF 95% confidence interval is 0.000532. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.
BS2
High Hemizygotes in GnomAdExome4 at 22 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCDH19NM_001184880.2 linkc.3127A>T p.Ile1043Phe missense_variant Exon 6 of 6 ENST00000373034.8 NP_001171809.1 Q8TAB3-1
PCDH19NM_001105243.2 linkc.2986A>T p.Ile996Phe missense_variant Exon 5 of 5 NP_001098713.1 Q8TAB3-2B3KU71
PCDH19NM_020766.3 linkc.2983A>T p.Ile995Phe missense_variant Exon 5 of 5 NP_065817.2 Q8TAB3-3B3KU71

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCDH19ENST00000373034.8 linkc.3127A>T p.Ile1043Phe missense_variant Exon 6 of 6 1 NM_001184880.2 ENSP00000362125.4 Q8TAB3-1
PCDH19ENST00000255531.8 linkc.2986A>T p.Ile996Phe missense_variant Exon 5 of 5 1 ENSP00000255531.7 Q8TAB3-2
PCDH19ENST00000420881.6 linkc.2983A>T p.Ile995Phe missense_variant Exon 5 of 5 1 ENSP00000400327.2 Q8TAB3-3

Frequencies

GnomAD3 genomes
AF:
0.0000628
AC:
7
AN:
111449
Hom.:
0
Cov.:
23
AF XY:
0.0000297
AC XY:
1
AN XY:
33617
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000844
Gnomad SAS
AF:
0.00155
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000937
AC:
17
AN:
181355
Hom.:
0
AF XY:
0.000104
AC XY:
7
AN XY:
67325
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000813
Gnomad SAS exome
AF:
0.000263
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000419
AC:
46
AN:
1098119
Hom.:
0
Cov.:
31
AF XY:
0.0000605
AC XY:
22
AN XY:
363475
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000232
Gnomad4 SAS exome
AF:
0.000406
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000119
Gnomad4 OTH exome
AF:
0.000347
GnomAD4 genome
AF:
0.0000628
AC:
7
AN:
111502
Hom.:
0
Cov.:
23
AF XY:
0.0000297
AC XY:
1
AN XY:
33680
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000847
Gnomad4 SAS
AF:
0.00156
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000908
AC:
11

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Mar 06, 2019
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 20, 2016
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Inborn genetic diseases Benign:1
Dec 07, 2024
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

PCDH19-related disorder Benign:1
May 24, 2021
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Developmental and epileptic encephalopathy, 9 Benign:1
Dec 17, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.056
.;T;.
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Benign
0.066
D
MetaRNN
Benign
0.049
T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.4
.;L;.
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.0
N;N;N
REVEL
Benign
0.080
Sift
Uncertain
0.0080
D;D;D
Sift4G
Uncertain
0.034
D;D;D
Polyphen
0.010, 0.20
.;B;B
Vest4
0.19
MVP
0.51
MPC
0.82
ClinPred
0.099
T
GERP RS
3.1
Varity_R
0.27
gMVP
0.36

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: rs189342249; hg19: chrX-99551595; API