5-151028092-A-G

Variant names:

• chr5-151028092-A-G
• rs778364094
• NM_002084.5:c.643A>G

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.643A>G​(p.Met215Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000563 in 1,599,522 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M215L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: GPX3 NM_002084.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.34
• 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=0.12378171).

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.643A>G	p.Met215Val	missense	Exon 5 of 5	NP_002075.2
	GPX3	NM_001329790.2		c.670A>G	p.Met224Val	missense	Exon 6 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.643A>G	p.Met215Val	missense	Exon 5 of 5	ENSP00000373477.4	P22352
	GPX3	ENST00000521632.1	TSL:5	c.450A>G	p.Thr150Thr	synonymous	Exon 3 of 3	ENSP00000430743.2	H0YC19
	GPX3	ENST00000517973.1	TSL:3	c.*186A>G		3_prime_UTR	Exon 4 of 4	ENSP00000429709.1	A0A182DWH9

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152222 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000723

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00000457 AC: 1 AN: 219048 AF XY: 0.00

Gnomad AFR exome AF: 0.0000780

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000415 AC: 6 AN: 1447300 Hom.: 0 Cov.: 32 AF XY: 0.00000278 AC XY: 2 AN XY: 718646

African (AFR) AF: 0.000121 AC: 4 AN: 33166

American (AMR) AF: 0.00 AC: 0 AN: 41886

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25806

East Asian (EAS) AF: 0.00 AC: 0 AN: 39078

South Asian (SAS) AF: 0.00 AC: 0 AN: 84618

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52524

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5750

European-Non Finnish (NFE) AF: 9.05e-7 AC: 1 AN: 1104574

Other (OTH) AF: 0.0000167 AC: 1 AN: 59898

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152222 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74362

African (AFR) AF: 0.0000723 AC: 3 AN: 41466

American (AMR) AF: 0.00 AC: 0 AN: 15288

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.0000329 Hom.: 0

Bravo AF: 0.0000416

ExAC AF: 0.00000830 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.34	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	20
DANN	Uncertain	0.97
DEOGEN2	Benign	0.13	T
Eigen	Benign	-0.42
Eigen_PC	Benign	-0.24
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.53	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-0.83	T
MutationAssessor	Benign	0.51	N
PhyloP100		1.3
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-0.90	N
REVEL	Benign	0.065
Sift	Uncertain	0.020	D
Sift4G	Uncertain	0.041	D
Polyphen		0.014	B
Vest4		0.40
MVP		0.50
MPC		0.40
ClinPred		0.18	T
GERP RS		3.2
Varity_R		0.35
Mutation Taster		=90/10	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: rs778364094; hg19: chr5-150407653;