chrX-100407809-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001184880.2(PCDH19):​c.789C>T​(p.Ser263=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,211,171 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 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 0.0000088 ( 0 hom., 0 hem., cov: 24)
Exomes 𝑓: 0.0000036 ( 0 hom. 1 hem. )

Consequence

PCDH19
NM_001184880.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.90
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 Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant X-100407809-G-A is Benign according to our data. Variant chrX-100407809-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 465309.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-2.9 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PCDH19NM_001184880.2 linkuse as main transcriptc.789C>T p.Ser263= synonymous_variant 1/6 ENST00000373034.8
PCDH19NM_001105243.2 linkuse as main transcriptc.789C>T p.Ser263= synonymous_variant 1/5
PCDH19NM_020766.3 linkuse as main transcriptc.789C>T p.Ser263= synonymous_variant 1/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PCDH19ENST00000373034.8 linkuse as main transcriptc.789C>T p.Ser263= synonymous_variant 1/61 NM_001184880.2 A1Q8TAB3-1
PCDH19ENST00000255531.8 linkuse as main transcriptc.789C>T p.Ser263= synonymous_variant 1/51 P5Q8TAB3-2
PCDH19ENST00000420881.6 linkuse as main transcriptc.789C>T p.Ser263= synonymous_variant 1/51 A1Q8TAB3-3

Frequencies

GnomAD3 genomes
AF:
0.00000885
AC:
1
AN:
113046
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
35184
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000187
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000364
AC:
4
AN:
1098125
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
1
AN XY:
363481
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000475
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000885
AC:
1
AN:
113046
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
35184
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000187
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 9 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
7.0
DANN
Benign
0.90

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: rs1338518342; hg19: chrX-99662807; API