11-57338599-G-A

Variant names:

• chr11-57338599-G-A
• rs955061837
• NM_002559.5:c.49G>A

Variant summary

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

The NM_002559.5(P2RX3):​c.49G>A​(p.Val17Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,248 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.000020 (0 hom., cov: 33)
• Consequence: P2RX3 NM_002559.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.86

Genes affected

P2RX3 (HGNC:8534): (purinergic receptor P2X 3) This gene encodes a member of the P2X purinergic receptor (purinoceptor) gene family which includes seven members (P2RX1 - P2RX7). P2X purinoceptors are a family of cation-permeable, ligand-gated ion channels that open in response to the binding of extracellular adenosine 5'-triphosphate (ATP). The encoded protein is a subunit of the trimeric P2X3 receptor ion channel which is expressed by sensory or autonomic neurons. A deficiency of the orthologous protein in mice is associated with reduced pain-related behavior and urinary bladder hyporeflexia. [provided by RefSeq, Aug 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
P2RX3	NM_002559.5	c.49G>A	p.Val17Ile	missense_variant	Exon 1 of 12	ENST00000263314.3	NP_002550.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
P2RX3	ENST00000263314.3	c.49G>A	p.Val17Ile	missense_variant	Exon 1 of 12	1	NM_002559.5	ENSP00000263314.2
P2RX3	ENST00000533436.1	n.226G>A		non_coding_transcript_exon_variant	Exon 1 of 2	3

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152248 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

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: 0.0000441

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152248 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74392

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000658 Hom.: 0

Bravo AF: 0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Mar 08, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.49G>A (p.V17I) alteration is located in exon 1 (coding exon 1) of the P2RX3 gene. This alteration results from a G to A substitution at nucleotide position 49, causing the valine (V) at amino acid position 17 to be replaced by an isoleucine (I). 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	0.27
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.062	.;T
Eigen	Uncertain	0.61
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.82	T;T
M_CAP	Benign	0.0023	T
MetaRNN	Uncertain	0.65	D;D
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.3	.;L
PrimateAI	Uncertain	0.66	T
PROVEAN	Benign	-0.10	.;N
REVEL	Benign	0.17
Sift	Benign	0.34	.;T
Sift4G	Benign	0.42	T;T
Polyphen		0.97	.;D
Vest4		0.69
MVP		0.56
MPC		0.76
ClinPred		0.98	D
GERP RS		5.0
Varity_R		0.26
gMVP		0.55

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

Publications

LitVar

Other links and lift over

dbSNP: rs955061837; hg19: chr11-57106073;