4-42893495-C-T

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_001080476.3(GRXCR1):​c.229C>T​(p.Gln77*) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000274 in 1,461,632 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 Likely pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

GRXCR1
NM_001080476.3 stop_gained

Scores

4
2
1

Clinical Significance

Pathogenic/Likely pathogenic no assertion criteria provided P:3

Conservation

PhyloP100: 3.70

Publications

2 publications found
Variant links:
Genes affected
GRXCR1 (HGNC:31673): (glutaredoxin and cysteine rich domain containing 1) This gene is one of 60 loci associated with autosomal-recessive nonsyndromic hearing impairment. This gene encodes a protein which contains GRX-like domains; these domains play a role in the S-glutathionylation of proteins and may be involved in actin organization in hair cells. [provided by RefSeq, Sep 2010]
GRXCR1 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 25
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 4-42893495-C-T is Pathogenic according to our data. Variant chr4-42893495-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 195.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GRXCR1NM_001080476.3 linkc.229C>T p.Gln77* stop_gained Exon 1 of 4 ENST00000399770.3 NP_001073945.1 A8MXD5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GRXCR1ENST00000399770.3 linkc.229C>T p.Gln77* stop_gained Exon 1 of 4 1 NM_001080476.3 ENSP00000382670.2 A8MXD5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461632
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727136
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33456
American (AMR)
AF:
0.00
AC:
0
AN:
44704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111828
Other (OTH)
AF:
0.00
AC:
0
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
32
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 25 Pathogenic:2
Jul 05, 2018
National Institute on Deafness and Communication Disorders, National Institutes of Health
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Feb 12, 2010
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Hearing loss, autosomal recessive Pathogenic:1
-
University of Washington Center for Mendelian Genomics, University of Washington
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.65
CADD
Pathogenic
37
DANN
Uncertain
1.0
Eigen
Pathogenic
0.73
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Pathogenic
0.98
D
PhyloP100
3.7
Vest4
0.16
GERP RS
5.0
Mutation Taster
=1/199
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs267606855; hg19: chr4-42895512; COSMIC: COSV107510241; COSMIC: COSV107510241; API