chrX-100407050-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_001184880.2(PCDH19):​c.1548C>T​(p.Tyr516=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000107 in 1,209,922 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 1 hem., cov: 24)
Exomes 𝑓: 0.0000091 ( 0 hom. 2 hem. )

Consequence

PCDH19
NM_001184880.2 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.0250
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant X-100407050-G-A is Benign according to our data. Variant chrX-100407050-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 159554.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-0.025 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PCDH19NM_001184880.2 linkuse as main transcriptc.1548C>T p.Tyr516= synonymous_variant 1/6 ENST00000373034.8 NP_001171809.1
PCDH19NM_001105243.2 linkuse as main transcriptc.1548C>T p.Tyr516= synonymous_variant 1/5 NP_001098713.1
PCDH19NM_020766.3 linkuse as main transcriptc.1548C>T p.Tyr516= synonymous_variant 1/5 NP_065817.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PCDH19ENST00000373034.8 linkuse as main transcriptc.1548C>T p.Tyr516= synonymous_variant 1/61 NM_001184880.2 ENSP00000362125 A1Q8TAB3-1
PCDH19ENST00000255531.8 linkuse as main transcriptc.1548C>T p.Tyr516= synonymous_variant 1/51 ENSP00000255531 P5Q8TAB3-2
PCDH19ENST00000420881.6 linkuse as main transcriptc.1548C>T p.Tyr516= synonymous_variant 1/51 ENSP00000400327 A1Q8TAB3-3

Frequencies

GnomAD3 genomes
AF:
0.0000268
AC:
3
AN:
111999
Hom.:
0
Cov.:
24
AF XY:
0.0000293
AC XY:
1
AN XY:
34141
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000939
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:
0.0000376
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000110
AC:
2
AN:
181848
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67666
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000730
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:
0.00000911
AC:
10
AN:
1097923
Hom.:
0
Cov.:
33
AF XY:
0.00000551
AC XY:
2
AN XY:
363281
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000114
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:
0.00000594
Gnomad4 OTH exome
AF:
0.0000217
GnomAD4 genome
AF:
0.0000268
AC:
3
AN:
111999
Hom.:
0
Cov.:
24
AF XY:
0.0000293
AC XY:
1
AN XY:
34141
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000939
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000376
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000340
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Developmental and epileptic encephalopathy, 9 Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 08, 2013- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 01, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.087
DANN
Benign
0.64

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: rs587784295; hg19: chrX-99662048; API