chr11-17531233-C-T

Position:

chr11-17531233-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_153676.4(USH1C):c.308G>A(p.Arg103His) variant causes a missense change. The variant allele was found at a frequency of 0.0000161 in 1,614,056 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R103C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

USH1C
NM_153676.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:7U:1

Conservation

PhyloP100: 7.19

Variant links:

Genes affected

USH1C (HGNC:12597): (USH1 protein network component harmonin) This gene encodes a scaffold protein that functions in the assembly of Usher protein complexes. The protein contains PDZ domains, a coiled-coil region with a bipartite nuclear localization signal and a PEST degradation sequence. Defects in this gene are the cause of Usher syndrome type 1C and non-syndromic sensorineural deafness autosomal recessive type 18. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

USH1C links:

USH1C (HGNC:):

USH1C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.959

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
USH1C	NM_153676.4 linkuse as main transcript	c.308G>A	p.Arg103His	missense_variant	4/27	ENST00000005226.12	NP_710142.1	Q9Y6N9-5
USH1C	NM_005709.4 linkuse as main transcript	c.308G>A	p.Arg103His	missense_variant	4/21	ENST00000318024.9	NP_005700.2	Q9Y6N9-1A0A0S2Z4U9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
USH1C	ENST00000005226.12 linkuse as main transcript	c.308G>A	p.Arg103His	missense_variant	4/27	5	NM_153676.4	ENSP00000005226.7		Q9Y6N9-5
USH1C	ENST00000318024.9 linkuse as main transcript	c.308G>A	p.Arg103His	missense_variant	4/21	1	NM_005709.4	ENSP00000317018.4		Q9Y6N9-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251178

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135856

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:

0.0000462

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461844

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000162

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:7Uncertain:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Usher syndrome type 1C

Pathogenic:3

Likely pathogenic, criteria provided, single submitter	clinical testing	Genomic Research Center, Shahid Beheshti University of Medical Sciences	Mar 05, 2018	- -
Likely pathogenic, no assertion criteria provided	clinical testing	Natera, Inc.	Jul 14, 2020	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Sep 01, 2011	- -

Autosomal recessive nonsyndromic hearing loss 18A

Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Genomic Research Center, Shahid Beheshti University of Medical Sciences	Mar 05, 2018	- -
Pathogenic, flagged submission	clinical testing	Baylor Genetics	Sep 20, 2023	- -

Usher syndrome type 1

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Genomic Research Center, Shahid Beheshti University of Medical Sciences

Mar 05, 2018

- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 21, 2023

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 103 of the USH1C protein (p.Arg103His). This variant is present in population databases (rs397514500, gnomAD 0.008%). This missense change has been observed in individual(s) with Usher syndrome (PMID: 16679490, 21487335, 21569298). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 39427). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change affects USH1C function (PMID: 20142502). For these reasons, this variant has been classified as Pathogenic. -

Usher syndrome type 1C;C1865870:Autosomal recessive nonsyndromic hearing loss 18A

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Apr 27, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.27

T;.;.;.;T

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.96

D;D;D;D;D

M_CAP

Uncertain

0.16

MetaRNN

Pathogenic

0.96

D;D;D;D;D

MetaSVM

Benign

-0.83

MutationAssessor

Benign

1.3

L;.;L;L;.

PrimateAI

Pathogenic

0.81

PROVEAN

Pathogenic

-4.6

D;D;D;D;D

REVEL

Uncertain

0.58

Sift

Uncertain

0.0010

D;D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;.

Polyphen

1.0

D;.;D;.;.

Vest4

0.89

MutPred

0.89

Loss of methylation at R103 (P = 0.0217);.;Loss of methylation at R103 (P = 0.0217);Loss of methylation at R103 (P = 0.0217);.;

MVP

0.63

MPC

0.43

ClinPred

1.0

GERP RS

5.4

Varity_R

0.89

gMVP

0.67

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