rs749602848

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.513C>T​(p.Asn171Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000282 in 1,209,015 control chromosomes in the GnomAD database, including 1 homozygotes. There are 154 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., 11 hem., cov: 25)
Exomes 𝑓: 0.00029 ( 1 hom. 143 hem. )

Consequence

PCDH19
NM_001184880.2 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.527

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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.64).
BP6
Variant X-100408085-G-A is Benign according to our data. Variant chrX-100408085-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 206293.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.527 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000203 (23/113038) while in subpopulation SAS AF = 0.00182 (5/2743). AF 95% confidence interval is 0.000718. There are 0 homozygotes in GnomAd4. There are 11 alleles in the male GnomAd4 subpopulation. Median coverage is 25. This position passed quality control check.
BS2
High AC in GnomAd4 at 23 AD,XL,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCDH19NM_001184880.2 linkc.513C>T p.Asn171Asn synonymous_variant Exon 1 of 6 ENST00000373034.8 NP_001171809.1 Q8TAB3-1
PCDH19NM_001105243.2 linkc.513C>T p.Asn171Asn synonymous_variant Exon 1 of 5 NP_001098713.1 Q8TAB3-2B3KU71
PCDH19NM_020766.3 linkc.513C>T p.Asn171Asn synonymous_variant Exon 1 of 5 NP_065817.2 Q8TAB3-3B3KU71

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCDH19ENST00000373034.8 linkc.513C>T p.Asn171Asn synonymous_variant Exon 1 of 6 1 NM_001184880.2 ENSP00000362125.4 Q8TAB3-1
PCDH19ENST00000255531.8 linkc.513C>T p.Asn171Asn synonymous_variant Exon 1 of 5 1 ENSP00000255531.7 Q8TAB3-2
PCDH19ENST00000420881.6 linkc.513C>T p.Asn171Asn synonymous_variant Exon 1 of 5 1 ENSP00000400327.2 Q8TAB3-3

Frequencies

GnomAD3 genomes
AF:
0.000204
AC:
23
AN:
112986
Hom.:
0
Cov.:
25
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:
0.00
Gnomad SAS
AF:
0.00182
Gnomad FIN
AF:
0.00112
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000187
Gnomad OTH
AF:
0.000653
GnomAD2 exomes
AF:
0.000463
AC:
83
AN:
179321
AF XY:
0.000728
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:
0.00159
Gnomad NFE exome
AF:
0.0000985
Gnomad OTH exome
AF:
0.000225
GnomAD4 exome
AF:
0.000290
AC:
318
AN:
1095977
Hom.:
1
Cov.:
33
AF XY:
0.000395
AC XY:
143
AN XY:
362299
show subpopulations
African (AFR)
AF:
0.0000379
AC:
1
AN:
26402
American (AMR)
AF:
0.0000284
AC:
1
AN:
35204
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19386
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30205
South Asian (SAS)
AF:
0.00247
AC:
134
AN:
54149
European-Finnish (FIN)
AF:
0.00128
AC:
49
AN:
38298
Middle Eastern (MID)
AF:
0.000242
AC:
1
AN:
4137
European-Non Finnish (NFE)
AF:
0.000139
AC:
117
AN:
842117
Other (OTH)
AF:
0.000326
AC:
15
AN:
46079
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
13
25
38
50
63
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000203
AC:
23
AN:
113038
Hom.:
0
Cov.:
25
AF XY:
0.000312
AC XY:
11
AN XY:
35206
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31208
American (AMR)
AF:
0.00
AC:
0
AN:
10846
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2659
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3545
South Asian (SAS)
AF:
0.00182
AC:
5
AN:
2743
European-Finnish (FIN)
AF:
0.00112
AC:
7
AN:
6242
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.000187
AC:
10
AN:
53342
Other (OTH)
AF:
0.000645
AC:
1
AN:
1551
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
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

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:
0.000216
Hom.:
1
Bravo
AF:
0.000102
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Benign:2
May 26, 2017
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 24, 2014
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
Sep 02, 2019
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. -

Developmental and epileptic encephalopathy, 9 Benign:1
May 28, 2024
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
-0.64
CADD
Benign
1.9
DANN
Benign
0.95
PhyloP100
-0.53
Mutation Taster
=98/2
polymorphism (auto)

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: rs749602848; hg19: chrX-99663083; COSMIC: COSV55260471; COSMIC: COSV55260471; API