7-151048938-G-T

Variant names:

• chr7-151048938-G-T
• rs747277462
• NM_004769.4:c.53G>T

Variant summary

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

The NM_004769.4(ASIC3):​c.53G>T​(p.Arg18Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000701 in 1,427,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. R18H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: ASIC3 NM_004769.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.429
• Publications: 0 publications found

Genes affected

ASIC3 (HGNC:101): (acid sensing ion channel subunit 3) This gene encodes a member of the degenerin/epithelial sodium channel (DEG/ENaC) superfamily. The members of this family are amiloride-sensitive sodium channels that contain intracellular N and C termini, two hydrophobic transmembrane regions, and a large extracellular loop, which has many cysteine residues with conserved spacing. The member encoded by this gene is an acid sensor and may play an important role in the detection of lasting pH changes. In addition, a heteromeric association between this member and acid-sensing (proton-gated) ion channel 2 has been observed as proton-gated channels sensitive to gadolinium. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2012]

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=0.16027847).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004769.4. 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
	ASIC3	NM_004769.4	MANE Select	c.53G>T	p.Arg18Leu	missense	Exon 1 of 11	NP_004760.1	Q9UHC3-1
	ASIC3	NM_020321.3		c.53G>T	p.Arg18Leu	missense	Exon 1 of 11	NP_064717.1	Q9UHC3-3
	ASIC3	NM_020322.3		c.53G>T	p.Arg18Leu	missense	Exon 1 of 10	NP_064718.1	Q9UHC3-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ASIC3	ENST00000349064.10	TSL:1 MANE Select	c.53G>T	p.Arg18Leu	missense	Exon 1 of 11	ENSP00000344838.5	Q9UHC3-1
	ASIC3	ENST00000297512.12	TSL:1	c.53G>T	p.Arg18Leu	missense	Exon 1 of 11	ENSP00000297512.8	Q9UHC3-3
	ASIC3	ENST00000357922.8	TSL:1	c.53G>T	p.Arg18Leu	missense	Exon 1 of 10	ENSP00000350600.4	Q9UHC3-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.01e-7 AC: 1 AN: 1427058 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 704470

African (AFR) AF: 0.00 AC: 0 AN: 32948

American (AMR) AF: 0.00 AC: 0 AN: 43114

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23894

East Asian (EAS) AF: 0.00 AC: 0 AN: 39182

South Asian (SAS) AF: 0.00 AC: 0 AN: 81238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51336

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5610

European-Non Finnish (NFE) AF: 9.17e-7 AC: 1 AN: 1090910

Other (OTH) AF: 0.00 AC: 0 AN: 58826

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.048	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	13
DANN	Uncertain	0.98
DEOGEN2	Benign	0.18	T
Eigen	Benign	-0.68
Eigen_PC	Benign	-0.69
FATHMM_MKL	Benign	0.32	N
LIST_S2	Uncertain	0.88	D
M_CAP	Uncertain	0.15	D
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.82	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		0.43
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.21
Sift	Benign	0.12	T
Sift4G	Benign	0.29	T
Polyphen		0.064	B
Vest4		0.30
MutPred		0.54		Loss of disorder (P = 0.0185)
MVP		0.50
MPC		0.17
ClinPred		0.12	T
GERP RS		3.1
PromoterAI		-0.024	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.10
gMVP		0.39
Mutation Taster		=74/26	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: rs747277462; hg19: chr7-150746025;