4-43030441-G-T

Position:

• chr4-43030441-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001080476.3(GRXCR1):​c.774G>T​(p.Met258Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: GRXCR1 NM_001080476.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.52

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.791

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRXCR1	NM_001080476.3	c.774G>T	p.Met258Ile	missense_variant	4/4	ENST00000399770.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRXCR1	ENST00000399770.3	c.774G>T	p.Met258Ile	missense_variant	4/4	1	NM_001080476.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.89
BayesDel_addAF	Uncertain	0.048	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.13	T
Eigen	Uncertain	0.57
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.025	D
MetaRNN	Pathogenic	0.79	D
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.85	D
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.30
Sift	Benign	0.058	T
Sift4G	Benign	0.34	T
Polyphen		0.92	P
Vest4		0.91
MutPred		0.45		Gain of sheet (P = 0.0266);
MVP		0.40
MPC		0.25
ClinPred		0.96	D
GERP RS		5.5
Varity_R		0.36
gMVP		0.50

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-43032458;