Genetic Variant MRGPRX1:p.Cys161Arg (chr11-18934304-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_001393578.1(MRGPRX1):c.481T>C(p.Cys161Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,610,654 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 35)

Exomes 𝑓: 0.000015 ( 2 hom. )

Consequence

MRGPRX1
NM_001393578.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.00100

Publications

0 publications found

Variant links:

Genes affected

MRGPRX1 (HGNC:17962): (MAS related GPR family member X1) Enables transmembrane signaling receptor activity. Involved in cell surface receptor signaling pathway and response to chloroquine. Predicted to be located in cell surface. [provided by Alliance of Genome Resources, Apr 2022]

MRGPRX1 links:

ENSG00000255244 (HGNC:):

ENSG00000255244 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.92

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001393578.1. 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
	MRGPRX1	NM_001393578.1	MANE Select	c.481T>C	p.Cys161Arg	missense	Exon 2 of 2	NP_001380507.1	Q96LB2
	MRGPRX1	NM_147199.4		c.481T>C	p.Cys161Arg	missense	Exon 1 of 1	NP_671732.3	Q96LB2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MRGPRX1	ENST00000526914.2	TSL:3 MANE Select	c.481T>C	p.Cys161Arg	missense	Exon 2 of 2	ENSP00000499076.2	Q96LB2
MRGPRX1	ENST00000302797.4	TSL:6	c.481T>C	p.Cys161Arg	missense	Exon 1 of 1	ENSP00000305766.3	Q96LB2
ENSG00000255244	ENST00000836338.1		n.374-5001A>G		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000243

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:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000399

AC:

AN:

250802

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000927

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1459434

Hom.:

Cov.:

AF XY:

0.00000689

AC XY:

AN XY:

726040

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33458

American (AMR)

AF:

0.00

AC:

AN:

44310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.00

AC:

AN:

39654

South Asian (SAS)

AF:

0.00

AC:

AN:

86048

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53344

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.0000180

AC:

AN:

1110440

Other (OTH)

AF:

0.0000166

AC:

AN:

60316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151220

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

73822

show subpopulations

African (AFR)

AF:

0.0000243

AC:

AN:

41222

American (AMR)

AF:

0.00

AC:

AN:

15076

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5132

South Asian (SAS)

AF:

0.00

AC:

AN:

4756

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10540

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

67740

Other (OTH)

AF:

0.00

AC:

AN:

2062

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000102

Hom.:

ExAC

AF:

0.0000577

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.49

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.22

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.090

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.43

FATHMM_MKL

Benign

0.038

LIST_S2

Benign

0.42

M_CAP

Benign

0.015

MetaRNN

Pathogenic

0.92

MetaSVM

Benign

-0.62

MutationAssessor

Pathogenic

3.8

PhyloP100

0.0010

PrimateAI

Benign

0.31

PROVEAN

Pathogenic

-11

REVEL

Benign

0.21

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.28

MutPred

0.90

Loss of catalytic residue at M159 (P = 7e-04)

MVP

0.68

MPC

0.28

ClinPred

0.99

GERP RS

2.3

Varity_R

0.89

gMVP

0.53

Mutation Taster

=97/3

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over