5-151020674-C-A

Variant names:

• chr5-151020674-C-A
• rs764223263
• NM_002084.5:c.20C>A

Variant summary

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

The NM_002084.5(GPX3):​c.20C>A​(p.Ala7Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,610,678 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A7G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: GPX3 NM_002084.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.549
• Publications: 0 publications found

Genes affected

GPX3 (HGNC:4555): (glutathione peroxidase 3) The protein encoded by this gene belongs to the glutathione peroxidase family, members of which catalyze the reduction of organic hydroperoxides and hydrogen peroxide (H2O2) by glutathione, and thereby protect cells against oxidative damage. Several isozymes of this gene family exist in vertebrates, which vary in cellular location and substrate specificity. This isozyme is secreted, and is abundantly found in plasma. Downregulation of expression of this gene by promoter hypermethylation has been observed in a wide spectrum of human malignancies, including thyroid cancer, hepatocellular carcinoma and chronic myeloid leukemia. This isozyme is also a selenoprotein, containing the rare amino acid selenocysteine (Sec) at its active site. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2016]

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=0.18791401).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002084.5. 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
	GPX3	NM_002084.5	MANE Select	c.20C>A	p.Ala7Glu	missense	Exon 1 of 5	NP_002075.2
	GPX3	NM_001329790.2		c.20C>A	p.Ala7Glu	missense	Exon 1 of 6	NP_001316719.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GPX3	ENST00000388825.9	TSL:1 MANE Select	c.20C>A	p.Ala7Glu	missense	Exon 1 of 5	ENSP00000373477.4	P22352
	GPX3	ENST00000521650.5	TSL:2	c.20C>A	p.Ala7Glu	missense	Exon 1 of 5	ENSP00000427873.1	E5RG32
	GPX3	ENST00000517973.1	TSL:3	c.20C>A	p.Ala7Glu	missense	Exon 1 of 4	ENSP00000429709.1	A0A182DWH9

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152234 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

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

GnomAD2 exomes AF: 0.0000290 AC: 7 AN: 241440 AF XY: 0.00000755

Gnomad AFR exome AF: 0.0000695

Gnomad AMR exome AF: 0.000178

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000549 AC: 8 AN: 1458444 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725422

African (AFR) AF: 0.00 AC: 0 AN: 33454

American (AMR) AF: 0.000157 AC: 7 AN: 44546

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26084

East Asian (EAS) AF: 0.00 AC: 0 AN: 39650

South Asian (SAS) AF: 0.00 AC: 0 AN: 85932

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51770

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5730

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111028

Other (OTH) AF: 0.00 AC: 0 AN: 60250

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152234 Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3 AN XY: 74364

African (AFR) AF: 0.00 AC: 0 AN: 41466

American (AMR) AF: 0.000196 AC: 3 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ExAC AF: 0.00000829 AC: 1

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	Benign	0.29
BayesDel_addAF	Benign	-0.29	T
BayesDel_noAF	Benign	-0.39
CADD	Uncertain	25
DANN	Benign	0.90
DEOGEN2	Benign	0.20	T
Eigen	Benign	-0.40
Eigen_PC	Benign	-0.38
FATHMM_MKL	Benign	0.35	N
LIST_S2	Benign	0.64	T
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		0.55
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-0.83	N
REVEL	Benign	0.18
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.027	D
Polyphen		0.0060	B
Vest4		0.52
MutPred		0.58		Gain of disorder (P = 0.0361)
MVP		0.46
MPC		0.92
ClinPred		0.13	T
GERP RS		2.3
PromoterAI		-0.031	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.26
Mutation Taster		=87/13	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: rs764223263; hg19: chr5-150400235;