Variant 11-19056012-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_054030.4(MRGPRX2):c.391G>C(p.Val131Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

MRGPRX2
NM_054030.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.360

Variant links:

Genes affected

MRGPRX2 (HGNC:17983): (MAS related GPR family member X2) Enables G protein-coupled receptor activity and neuropeptide binding activity. Involved in mast cell degranulation and positive regulation of cytokinesis. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

MRGPRX2 links:

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ACMG classification

Classification made for transcript

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=0.16810483).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MRGPRX2	NM_054030.4 linkuse as main transcript	c.391G>C	p.Val131Leu	missense_variant	2/2	ENST00000329773.3	NP_473371.1
MRGPRX2	NM_001303615.2 linkuse as main transcript	c.391G>C	p.Val131Leu	missense_variant	3/3		NP_001290544.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MRGPRX2	ENST00000329773.3 linkuse as main transcript	c.391G>C	p.Val131Leu	missense_variant	2/2	1	NM_054030.4	ENSP00000333800	P1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000893

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD3 exomes

AF:

0.0000636

AC:

AN:

251460

Hom.:

AF XY:

0.0000662

AC XY:

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.000738

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.000657

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000256

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.000893

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000287

ESP6500AA

AF:

0.000455

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 02, 2024

The c.391G>C (p.V131L) alteration is located in exon 2 (coding exon 1) of the MRGPRX2 gene. This alteration results from a G to C substitution at nucleotide position 391, causing the valine (V) at amino acid position 131 to be replaced by a leucine (L). 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

0.28

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Uncertain

0.97

DEOGEN2

Benign

0.018

Eigen

Benign

-0.35

Eigen_PC

Benign

-0.52

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.76

M_CAP

Benign

0.035

MetaRNN

Benign

0.17

MetaSVM

Benign

-0.51

MutationAssessor

Pathogenic

3.5

MutationTaster

Benign

1.0

PrimateAI

Benign

0.41

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.45

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.010

Polyphen

0.59

Vest4

0.46

MVP

0.83

MPC

0.25

ClinPred

0.18

GERP RS

-1.5

Varity_R

0.51

gMVP

0.33

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over