10-54317338-A-G

Position:

chr10-54317338-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The ENST00000320301.11(PCDH15):c.809T>C(p.Leu270Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,752 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L270R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PCDH15
ENST00000320301.11 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.36

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]

PCDH15 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in ENST00000320301.11

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.886

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PCDH15	NM_033056.4 linkuse as main transcript	c.809T>C	p.Leu270Pro	missense_variant	8/33	ENST00000320301.11	NP_149045.3	Q96QU1-1
PCDH15	NM_001384140.1 linkuse as main transcript	c.809T>C	p.Leu270Pro	missense_variant	8/38	ENST00000644397.2	NP_001371069.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PCDH15	ENST00000320301.11 linkuse as main transcript	c.809T>C	p.Leu270Pro	missense_variant	8/33	1	NM_033056.4	ENSP00000322604.6		Q96QU1-1
PCDH15	ENST00000644397.2 linkuse as main transcript	c.809T>C	p.Leu270Pro	missense_variant	8/38		NM_001384140.1	ENSP00000495195.1		A0A2R8Y6C0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251348

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135834

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461752

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727174

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 07, 2023

This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 270 of the PCDH15 protein (p.Leu270Pro). This variant is present in population databases (no rsID available, gnomAD no frequency). This variant has not been reported in the literature in individuals affected with PCDH15-related conditions. ClinVar contains an entry for this variant (Variation ID: 1974485). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PCDH15 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.083

T;.;.;.;.;T;.;.;T;.;T;.;.;T;.;T;.;.;.;.;.;.;T;.

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.93

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

M_CAP

Uncertain

0.16

MetaRNN

Pathogenic

0.89

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.40

MutationAssessor

Benign

1.8

.;.;.;.;L;.;.;.;.;.;.;L;.;.;.;.;.;.;.;.;.;.;L;L

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.72

PROVEAN

Pathogenic

-5.0

D;.;.;.;.;.;D;D;.;D;.;D;D;.;D;.;.;D;D;D;.;D;D;D

REVEL

Uncertain

0.60

Sift

Uncertain

0.0010

D;.;.;.;.;.;D;D;.;D;.;D;D;.;D;.;.;D;D;D;.;D;D;D

Sift4G

Pathogenic

0.0

D;.;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

Polyphen

0.99, 1.0, 1.0, 1.0, 0.99

.;.;.;.;.;.;.;.;.;.;.;.;D;.;D;.;.;D;D;D;.;D;D;D

Vest4

0.66

MutPred

0.78

Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);.;Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);.;Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);.;Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);.;.;.;Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);.;.;Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);Gain of disorder (P = 0.0149);

MVP

0.88

MPC

0.087

ClinPred

0.97

GERP RS

4.8

Varity_R

0.94

gMVP

0.83

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