chr12-121156127-G-A

Position:

• chr12-121156127-G-A

Variant summary

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

The NM_002562.6(P2RX7):​c.343G>A​(p.Glu115Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/18 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: P2RX7 NM_002562.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.122

Genes affected

P2RX7 (HGNC:8537): (purinergic receptor P2X 7) The product of this gene belongs to the family of purinoceptors for ATP. This receptor functions as a ligand-gated ion channel and is responsible for ATP-dependent lysis of macrophages through the formation of membrane pores permeable to large molecules. Activation of this nuclear receptor by ATP in the cytoplasm may be a mechanism by which cellular activity can be coupled to changes in gene expression. Multiple alternatively spliced variants have been identified, most of which fit nonsense-mediated decay (NMD) criteria. [provided by RefSeq, Jul 2010]

P2RX7 (HGNC:):

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=0.12598404).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
P2RX7	NM_002562.6	c.343G>A	p.Glu115Lys	missense_variant	3/13	ENST00000328963.10	NP_002553.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
P2RX7	ENST00000328963.10	c.343G>A	p.Glu115Lys	missense_variant	3/13	1	NM_002562.6	ENSP00000330696.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

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

Jan 04, 2024

The c.343G>A (p.E115K) alteration is located in exon 3 (coding exon 3) of the P2RX7 gene. This alteration results from a G to A substitution at nucleotide position 343, causing the glutamic acid (E) at amino acid position 115 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	0.090
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	7.2
DANN	Benign	0.95
DEOGEN2	Benign	0.060	T
Eigen	Benign	-1.0
Eigen_PC	Benign	-0.99
FATHMM_MKL	Benign	0.026	N
LIST_S2	Benign	0.24	T
M_CAP	Benign	0.0017	T
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	0.40	N
PrimateAI	Benign	0.31	T
Sift4G	Benign	0.89	T
Polyphen		0.0030	B
Vest4		0.22
MutPred		0.45		Gain of ubiquitination at E115 (P = 0.0211);
MVP		0.30
ClinPred		0.15	T
GERP RS		0.55
Varity_R		0.027
gMVP		0.38

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1878525339; hg19: chr12-121593930;