rs146199636

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001384140.1(PCDH15):​c.1900G>A​(p.Val634Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000318 in 1,613,378 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 3 hom. )

Consequence

PCDH15
NM_001384140.1 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:4

Conservation

PhyloP100: 1.61
Variant links:
Genes affected
PCDH15 (HGNC:14674): (protocadherin related 15) This gene is a member of the cadherin superfamily. Family members encode integral membrane proteins that mediate calcium-dependent cell-cell adhesion. It plays an essential role in maintenance of normal retinal and cochlear function. Mutations in this gene result in hearing loss and Usher Syndrome Type IF (USH1F). Extensive alternative splicing resulting in multiple isoforms has been observed in the mouse ortholog. Similar alternatively spliced transcripts are inferred to occur in human, and additional variants are likely to occur. [provided by RefSeq, Dec 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008870691).
BP6
Variant 10-54132892-C-T is Benign according to our data. Variant chr10-54132892-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 300192.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=6, Benign=1}. Variant chr10-54132892-C-T is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAdExome4 at 3 AR,Digenic gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PCDH15NM_033056.4 linkuse as main transcriptc.1900G>A p.Val634Ile missense_variant 15/33 ENST00000320301.11 NP_149045.3 Q96QU1-1
PCDH15NM_001384140.1 linkuse as main transcriptc.1900G>A p.Val634Ile missense_variant 15/38 ENST00000644397.2 NP_001371069.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PCDH15ENST00000320301.11 linkuse as main transcriptc.1900G>A p.Val634Ile missense_variant 15/331 NM_033056.4 ENSP00000322604.6 Q96QU1-1
PCDH15ENST00000644397.2 linkuse as main transcriptc.1900G>A p.Val634Ile missense_variant 15/38 NM_001384140.1 ENSP00000495195.1 A0A2R8Y6C0

Frequencies

GnomAD3 genomes
AF:
0.000224
AC:
34
AN:
151940
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00270
Gnomad FIN
AF:
0.0000945
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000583
AC:
146
AN:
250364
Hom.:
0
AF XY:
0.000732
AC XY:
99
AN XY:
135296
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.000464
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00312
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000265
Gnomad OTH exome
AF:
0.000655
GnomAD4 exome
AF:
0.000328
AC:
479
AN:
1461320
Hom.:
3
Cov.:
33
AF XY:
0.000440
AC XY:
320
AN XY:
726886
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000381
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00328
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000121
Gnomad4 OTH exome
AF:
0.000414
GnomAD4 genome
AF:
0.000224
AC:
34
AN:
152058
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00270
Gnomad4 FIN
AF:
0.0000945
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000182
Hom.:
0
Bravo
AF:
0.000140
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000626
AC:
76
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Usher syndrome type 1F Uncertain:3
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Apr 17, 2020- -
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingPars Genome LabMay 18, 2021- -
not provided Uncertain:1Benign:2
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 09, 2017- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMay 01, 2023PCDH15: BP4 -
Usher syndrome type 1D;C1836027:Autosomal recessive nonsyndromic hearing loss 23;C1865885:Usher syndrome type 1F Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -
Autosomal recessive nonsyndromic hearing loss 23 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Usher syndrome type 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMay 15, 2018p.Val634Ile in exon 15 of PCDH15: This variant is classified as benign due to a lack of conservation across species, including mammals. Of note, >40 mammals hav e an Isoleucine (Ile) at this position despite high nearby amino acid conservati on. In addition, computational prediction tools do not suggest a high likelihood of impact to the protein. It has been identified in 0.32% (97/30666) of South A sian chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broad institute.org; dbSNP rs146199636). ACMG/AMP criteria applied: BS1, BP4_Strong. -
PCDH15-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 11, 2024This 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.080
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
22
DANN
Benign
0.87
DEOGEN2
Benign
0.0070
T;.;.;.;.;T;T;.;T;T;.;.;T;.;T;.;.;.;.;T;.
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.21
FATHMM_MKL
Benign
0.61
D
LIST_S2
Uncertain
0.92
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.0089
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.91
.;.;.;.;L;.;.;.;.;.;.;.;.;.;.;.;.;.;.;L;L
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.080
.;.;.;.;.;.;.;N;N;.;N;N;.;N;.;N;N;N;.;N;N
REVEL
Benign
0.077
Sift
Benign
0.39
.;.;.;.;.;.;.;T;T;.;T;T;.;T;.;T;T;T;.;T;T
Sift4G
Benign
1.0
T;.;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.0, 0.0080, 0.0040, 0.010
.;.;.;.;.;.;.;.;.;.;.;B;.;B;.;B;B;B;.;B;B
Vest4
0.12
MVP
0.34
MPC
0.026
ClinPred
0.031
T
GERP RS
3.8
Varity_R
0.087
gMVP
0.14

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs146199636; hg19: chr10-55892652; COSMIC: COSV100218287; API