10-53827417-T-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_033056.4(PCDH15):c.4343A>G(p.Tyr1448Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000242 in 1,613,000 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. Y1448S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

PCDH15
NM_033056.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 7.02

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 23
Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), PanelApp Australia
Usher syndrome type 1
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
Usher syndrome type 1F
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nonsyndromic genetic hearing loss
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

PCDH15 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PCDH15	NM_033056.4 link	c.4343A>G	p.Tyr1448Cys	missense_variant	Exon 32 of 33	ENST00000320301.11	NP_149045.3	Q96QU1-1
PCDH15	NM_001384140.1 link	c.4343A>G	p.Tyr1448Cys	missense_variant	Exon 32 of 38	ENST00000644397.2	NP_001371069.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PCDH15	ENST00000320301.11 link	c.4343A>G	p.Tyr1448Cys	missense_variant	Exon 32 of 33	1	NM_033056.4	ENSP00000322604.6		Q96QU1-1
PCDH15	ENST00000644397.2 link	c.4343A>G	p.Tyr1448Cys	missense_variant	Exon 32 of 38		NM_001384140.1	ENSP00000495195.1		A0A2R8Y6C0

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.000376

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000403

AC:

AN:

248144

AF XY:

0.0000298

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000186

Gnomad NFE exome

AF:

0.0000270

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1460676

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

726470

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33440

American (AMR)

AF:

0.0000448

AC:

AN:

44636

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26072

East Asian (EAS)

AF:

0.00

AC:

AN:

39664

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86142

European-Finnish (FIN)

AF:

0.000225

AC:

AN:

53348

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000117

AC:

AN:

1111268

Other (OTH)

AF:

0.0000497

AC:

AN:

60342

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74490

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41584

American (AMR)

AF:

0.00

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.000376

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 18, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The Tyr1448Cys variant in PCDH15 has been identified in the heterozygous state i n one individual with hearing loss by our laboratory; however, a second PCDH15 v ariant was not detected. This variant was not identified in large and broad Afri can American and European American populations sequenced by the NHLBI Exome Sequ encing Project (http://evs.gs.washington.edu/EVS/); however, it may be common in other populations. Computational analyses (biochemical amino acid properties, c onservation, AlignGVGD, PolyPhen2, and SIFT) suggest that the Tyr1448Cys variant may impact the protein, though this information is not predictive enough to det ermine pathogenicity. In summary, additional data is needed to determine the cli nical significance of this variant. -

Usher syndrome type 1F

Uncertain:1

Nov 11, 2019

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.80

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.23

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.096

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

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.97

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

0.15

MetaRNN

Uncertain

0.72

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

MetaSVM

Uncertain

-0.20

MutationAssessor

Uncertain

2.3

.;.;.;.;M;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;M

PhyloP100

7.0

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-5.0

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

REVEL

Uncertain

0.44

Sift

Pathogenic

0.0

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

Sift4G

Uncertain

0.0020

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

Polyphen

1.0, 0.99, 1.0

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

Vest4

0.91

MutPred

0.32

Loss of phosphorylation at Y1448 (P = 0.0054);Loss of phosphorylation at Y1448 (P = 0.0054);.;.;Loss of phosphorylation at Y1448 (P = 0.0054);.;.;Loss of phosphorylation at Y1448 (P = 0.0054);.;.;.;.;.;.;.;.;Loss of phosphorylation at Y1448 (P = 0.0054);.;.;.;.;Loss of phosphorylation at Y1448 (P = 0.0054);

MVP

0.87

MPC

0.24

ClinPred

0.89

GERP RS

5.6

Varity_R

0.31

gMVP

0.75

Mutation Taster

=24/76

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over