6-28533982-G-A

Position:

• chr6-28533982-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001509.3(GPX5):​c.481G>A​(p.Glu161Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: GPX5 NM_001509.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.72

Genes affected

GPX5 (HGNC:4557): (glutathione peroxidase 5) This gene belongs to the glutathione peroxidase family. It is specifically expressed in the epididymis in the mammalian male reproductive tract, and is androgen-regulated. Unlike several other characterized glutathione peroxidases, this enzyme is not a selenoprotein, lacking the selenocysteine residue. Thus, it is selenium-independent, and has been proposed to play a role in protecting the membranes of spermatozoa from the damaging effects of lipid peroxidation and/or preventing premature acrosome reaction. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15269032).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GPX5	NM_001509.3	c.481G>A	p.Glu161Lys	missense_variant	5/5	ENST00000412168.7
GPX5	NM_003996.3	c.*60G>A		3_prime_UTR_variant	4/4
GPX5	NR_144470.2	n.559G>A		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GPX5	ENST00000412168.7	c.481G>A	p.Glu161Lys	missense_variant	5/5	1	NM_001509.3	P1
GPX5	ENST00000469384.1	c.*60G>A		3_prime_UTR_variant	4/4	1
GPX5	ENST00000442674.6	n.856G>A		non_coding_transcript_exon_variant	6/6	5
GPX5	ENST00000483784.1			downstream_gene_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 28, 2023

The c.481G>A (p.E161K) alteration is located in exon 5 (coding exon 5) of the GPX5 gene. This alteration results from a G to A substitution at nucleotide position 481, causing the glutamic acid (E) at amino acid position 161 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.15	T
Eigen	Benign	-0.21
Eigen_PC	Benign	-0.16
FATHMM_MKL	Uncertain	0.95	D
M_CAP	Benign	0.0060	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.6	M
MutationTaster	Benign	0.96	D;D
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.12
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.030	D
Polyphen		0.054	B
Vest4		0.26
MutPred		0.56		Gain of methylation at E161 (P = 0.0287);
MVP		0.41
MPC		0.26
ClinPred		0.88	D
GERP RS		2.5
Varity_R		0.39
gMVP		0.54

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-28501759;