rs199628956

Positions:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001184880.2(PCDH19):c.717C>T(p.Ser239=) 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 Likely 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

Clinical Significance

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

Conservation

PhyloP100: -0.670

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -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 [Likely_benign]. Clinvar id 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 male gnomad4 subpopulation. Median coverage is 25. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 20 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
PCDH19	NM_001184880.2 linkuse as main transcript	c.717C>T	p.Ser239=	synonymous_variant	1/6	ENST00000373034.8
PCDH19	NM_001105243.2 linkuse as main transcript	c.717C>T	p.Ser239=	synonymous_variant	1/5
PCDH19	NM_020766.3 linkuse as main transcript	c.717C>T	p.Ser239=	synonymous_variant	1/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCDH19	ENST00000373034.8 linkuse as main transcript	c.717C>T	p.Ser239=	synonymous_variant	1/6	1	NM_001184880.2	A1	Q8TAB3-1
PCDH19	ENST00000255531.8 linkuse as main transcript	c.717C>T	p.Ser239=	synonymous_variant	1/5	1		P5	Q8TAB3-2
PCDH19	ENST00000420881.6 linkuse as main transcript	c.717C>T	p.Ser239=	synonymous_variant	1/5	1		A1	Q8TAB3-3

Frequencies

GnomAD3 genomes

AF:

0.000486

AC:

AN:

113193

Hom.:

Cov.:

AF XY:

0.000566

AC XY:

AN XY:

35325

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

GnomAD3 exomes

AF:

0.000149

AC:

AN:

181429

Hom.:

AF XY:

0.000134

AC XY:

AN XY:

67331

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 SAS 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:

AN:

1097873

Hom.:

Cov.:

AF XY:

0.0000468

AC XY:

AN XY:

363257

show subpopulations

Gnomad4 AFR exome

AF:

0.00136

Gnomad4 AMR exome

AF:

0.000227

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:

0.00

Gnomad4 OTH exome

AF:

0.000152

GnomAD4 genome

AF:

0.000486

AC:

AN:

113246

Hom.:

Cov.:

AF XY:

0.000565

AC XY:

AN XY:

35388

show subpopulations

Gnomad4 AFR

AF:

0.00147

Gnomad4 AMR

AF:

0.000829

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000285

Hom.:

Bravo

AF:

0.000688

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Sep 16, 2013

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

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 22, 2018

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

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 27, 2022

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

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 06, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

5.0

DANN

Benign

0.91

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over