chr4-42893372-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001080476.3(GRXCR1):​c.106G>A​(p.Gly36Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,613,810 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

GRXCR1
NM_001080476.3 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 9.56
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18083829).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRXCR1NM_001080476.3 linkuse as main transcriptc.106G>A p.Gly36Arg missense_variant 1/4 ENST00000399770.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRXCR1ENST00000399770.3 linkuse as main transcriptc.106G>A p.Gly36Arg missense_variant 1/41 NM_001080476.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152106
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000201
AC:
5
AN:
249114
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135136
show subpopulations
Gnomad AFR exome
AF:
0.000323
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:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461586
Hom.:
0
Cov.:
33
AF XY:
0.00000688
AC XY:
5
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74410
show subpopulations
Gnomad4 AFR
AF:
0.000217
Gnomad4 AMR
AF:
0.0000654
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
Alfa
AF:
0.000102
Hom.:
0
Bravo
AF:
0.000102
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3476

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 03, 2022This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 36 of the GRXCR1 protein (p.Gly36Arg). 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with GRXCR1-related conditions. This variant is present in population databases (rs376879168, gnomAD 0.03%). -
Uncertain significance, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 10, 2023The c.106G>A (p.G36R) alteration is located in exon 1 (coding exon 1) of the GRXCR1 gene. This alteration results from a G to A substitution at nucleotide position 106, causing the glycine (G) at amino acid position 36 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.41
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.066
T
Eigen
Benign
-0.025
Eigen_PC
Benign
0.15
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.74
T
M_CAP
Benign
0.0085
T
MetaRNN
Benign
0.18
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.97
L
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.48
T
PROVEAN
Benign
0.21
N
REVEL
Benign
0.081
Sift
Uncertain
0.010
D
Sift4G
Uncertain
0.012
D
Polyphen
0.0060
B
Vest4
0.47
MutPred
0.24
Gain of glycosylation at Y33 (P = 0.0017);
MVP
0.43
MPC
0.054
ClinPred
0.19
T
GERP RS
5.5
Varity_R
0.13
gMVP
0.76

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.

Other links and lift over

dbSNP: rs376879168; hg19: chr4-42895389; COSMIC: COSV67672474; COSMIC: COSV67672474; API