rs199628956

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001184880.2(PCDH19):​c.717C>T​(p.Ser239Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000883 in 1,211,119 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 37 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., 20 hem., cov: 25)
Exomes 𝑓: 0.000047 ( 0 hom. 17 hem. )

Consequence

PCDH19
NM_001184880.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.670

Publications

1 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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant X-100407881-G-A is Benign according to our data. Variant chrX-100407881-G-A is described in ClinVar as Benign. ClinVar VariationId is 138597.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.67 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000486 (55/113246) while in subpopulation AFR AF = 0.00147 (46/31281). AF 95% confidence interval is 0.00113. There are 0 homozygotes in GnomAd4. There are 20 alleles in the male GnomAd4 subpopulation. Median coverage is 25. This position passed quality control check.
BS2
High AC in GnomAd4 at 55 AD,XL,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCDH19NM_001184880.2 linkc.717C>T p.Ser239Ser synonymous_variant Exon 1 of 6 ENST00000373034.8 NP_001171809.1
PCDH19NM_001105243.2 linkc.717C>T p.Ser239Ser synonymous_variant Exon 1 of 5 NP_001098713.1
PCDH19NM_020766.3 linkc.717C>T p.Ser239Ser synonymous_variant Exon 1 of 5 NP_065817.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCDH19ENST00000373034.8 linkc.717C>T p.Ser239Ser synonymous_variant Exon 1 of 6 1 NM_001184880.2 ENSP00000362125.4
PCDH19ENST00000255531.8 linkc.717C>T p.Ser239Ser synonymous_variant Exon 1 of 5 1 ENSP00000255531.7
PCDH19ENST00000420881.6 linkc.717C>T p.Ser239Ser synonymous_variant Exon 1 of 5 1 ENSP00000400327.2

Frequencies

GnomAD3 genomes
AF:
0.000486
AC:
55
AN:
113193
Hom.:
0
Cov.:
25
show subpopulations
Gnomad AFR
AF:
0.00147
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000830
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:
0.000149
AC:
27
AN:
181429
AF XY:
0.000134
show subpopulations
Gnomad AFR exome
AF:
0.00185
Gnomad AMR exome
AF:
0.000146
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000474
AC:
52
AN:
1097873
Hom.:
0
Cov.:
33
AF XY:
0.0000468
AC XY:
17
AN XY:
363257
show subpopulations
African (AFR)
AF:
0.00136
AC:
36
AN:
26400
American (AMR)
AF:
0.000227
AC:
8
AN:
35207
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19386
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30205
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54145
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40342
Middle Eastern (MID)
AF:
0.000242
AC:
1
AN:
4137
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
841959
Other (OTH)
AF:
0.000152
AC:
7
AN:
46092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.000486
AC:
55
AN:
113246
Hom.:
0
Cov.:
25
AF XY:
0.000565
AC XY:
20
AN XY:
35388
show subpopulations
African (AFR)
AF:
0.00147
AC:
46
AN:
31281
American (AMR)
AF:
0.000829
AC:
9
AN:
10858
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2660
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3575
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2753
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6283
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
219
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53374
Other (OTH)
AF:
0.00
AC:
0
AN:
1554
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome 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
Alfa
AF:
0.000285
Hom.:
1
Bravo
AF:
0.000688

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Sep 16, 2013
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Inborn genetic diseases Benign:1
Oct 22, 2018
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as 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
Jun 27, 2022
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
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
5.0
DANN
Benign
0.91
PhyloP100
-0.67
Mutation Taster
=100/0
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: rs199628956; hg19: chrX-99662879; API