6-52985526-A-G

Position:

• chr6-52985526-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001512.4(GSTA4):​c.197T>C​(p.Val66Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: GSTA4 NM_001512.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.79

Genes affected

GSTA4 (HGNC:4629): (glutathione S-transferase alpha 4) Cytosolic and membrane-bound forms of glutathione S-transferase are encoded by two distinct supergene families. These enzymes are involved in cellular defense against toxic, carcinogenic, and pharmacologically active electrophilic compounds. At present, eight distinct classes of the soluble cytoplasmic mammalian glutathione S-transferases have been identified: alpha, kappa, mu, omega, pi, sigma, theta and zeta. This gene encodes a glutathione S-tranferase belonging to the alpha class. The alpha class genes, which are located in a cluster on chromosome 6, are highly related and encode enzymes with glutathione peroxidase activity that function in the detoxification of lipid peroxidation products. Reactive electrophiles produced by oxidative metabolism have been linked to a number of degenerative diseases including Parkinson's disease, Alzheimer's disease, cataract formation, and atherosclerosis. [provided by RefSeq, Jul 2008]

GSTA4 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GSTA4	NM_001512.4	c.197T>C	p.Val66Ala	missense_variant	4/7	ENST00000370963.9	NP_001503.1
GSTA4	XM_005249035.5	c.197T>C	p.Val66Ala	missense_variant	4/7		XP_005249092.1
GSTA4	XM_011514534.4	c.86T>C	p.Val29Ala	missense_variant	3/6		XP_011512836.1
GSTA4	XM_011514535.4	c.86T>C	p.Val29Ala	missense_variant	3/6		XP_011512837.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GSTA4	ENST00000370963.9	c.197T>C	p.Val66Ala	missense_variant	4/7	1	NM_001512.4	ENSP00000360002.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.57
BayesDel_addAF	Uncertain	0.058	T
BayesDel_noAF	Benign	-0.15
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.19	T;T
Eigen	Pathogenic	0.69
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.85	.;T
M_CAP	Benign	0.0072	T
MetaRNN	Uncertain	0.72	D;D
MetaSVM	Benign	-1.2	T
MutationAssessor	Benign	1.6	L;L
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-3.5	D;D
REVEL	Uncertain	0.29
Sift	Benign	0.037	D;D
Sift4G	Uncertain	0.019	D;D
Polyphen		0.95	P;P
Vest4		0.73
MutPred		0.59		Loss of stability (P = 0.0959);Loss of stability (P = 0.0959);
MVP		0.31
MPC		0.46
ClinPred		0.97	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.61

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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

Other links and lift over

dbSNP: rs11544346; hg19: chr6-52850324; COSMIC: COSV63955683;