6-52899977-A-G

Variant names:

• chr6-52899977-A-G
• rs1377904170
• NM_000847.5:c.371T>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000847.5(GSTA3):​c.371T>C​(p.Ile124Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: GSTA3 NM_000847.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.37
• Publications: 0 publications found

Genes affected

GSTA3 (HGNC:4628): (glutathione S-transferase alpha 3) 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 genes that are located in a cluster mapped to chromosome 6. Genes of the alpha class are highly related and encode enzymes with glutathione peroxidase activity. However, during evolution, this alpha class gene diverged accumulating mutations in the active site that resulted in differences in substrate specificity and catalytic activity. The enzyme encoded by this gene catalyzes the double bond isomerization of precursors for progesterone and testosterone during the biosynthesis of steroid hormones. An additional transcript variant has been identified, but its full length sequence has not been determined. [provided by RefSeq, Jul 2008]

ENSG00000309866 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.25259143).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000847.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GSTA3	NM_000847.5	MANE Select	c.371T>C	p.Ile124Thr	missense	Exon 5 of 7	NP_000838.3
	GSTA3	NM_001363542.2		c.221T>C	p.Ile74Thr	missense	Exon 4 of 6	NP_001350471.1	Q5JW85

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GSTA3	ENST00000211122.4	TSL:1 MANE Select	c.371T>C	p.Ile124Thr	missense	Exon 5 of 7	ENSP00000211122.3	Q16772
	GSTA3	ENST00000370968.5	TSL:1	c.221T>C	p.Ile74Thr	missense	Exon 4 of 6	ENSP00000360007.1	Q5JW85
	GSTA3	ENST00000431899.2	TSL:5	c.221T>C	p.Ile74Thr	missense	Exon 3 of 4	ENSP00000399142.2	Q5JW84

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251274 AF XY: 0.00000736

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461764 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727178

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111930

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.72
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	22
DANN	Benign	0.97
DEOGEN2	Benign	0.15	T
Eigen	Benign	0.088
Eigen_PC	Benign	-0.11
FATHMM_MKL	Benign	0.64	D
LIST_S2	Benign	0.50	T
M_CAP	Benign	0.0023	T
MetaRNN	Benign	0.25	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Pathogenic	3.3	M
PhyloP100		4.4
PrimateAI	Benign	0.48	T
PROVEAN	Uncertain	-3.9	D
REVEL	Benign	0.13
Sift	Uncertain	0.010	D
Sift4G	Uncertain	0.019	D
Polyphen		0.89	P
Vest4		0.56
MutPred		0.48		Loss of stability (P = 0.0145)
MVP		0.30
MPC		0.044
ClinPred		0.75	D
GERP RS		1.5
Varity_R		0.63
gMVP		0.13
Mutation Taster		=70/30	polymorphism

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

Other links and lift over

dbSNP: rs1377904170; hg19: chr6-52764775;