MRGPRX2

MAS related GPR family member X2, the group of G protein-coupled receptors, Class A orphans

Basic information

Region (hg38): 11:19054455-19060717

Links

ENSG00000183695 ∙ NCBI:117194 ∙ OMIM:607228 ∙ HGNC:17983 ∙ Uniprot:Q96LB1 ∙ AlphaFold ∙ GenCC ∙ jax ∙ Sfari ∙ GnomAD ∙ Pubmed ∙ ClinVar

Phenotypes

GenCC

Source: genCC

No genCC data.

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the MRGPRX2 gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the MRGPRX2 gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type	Pathogenic	Likely pathogenic	VUS	Likely benign	Benign	Sum
synonymous						0
missense			21	2		23
nonsense						0
start loss						0
frameshift						0
inframe indel						0
splice donor/acceptor (+/-2bp)						0
splice region						0
non coding						0
Total	0	0	21	2	0

Variants in MRGPRX2

This is a list of pathogenic ClinVar variants found in the MRGPRX2 region.

You can filter this list by clicking the number of variants in the Variants pathogenicity by type table.

Position	Type	Phenotype	Significance	ClinVar
11-19055460-C-T		not specified	Uncertain significance (Aug 04, 2021)
11-19055570-A-T		not specified	Uncertain significance (Oct 27, 2022)
11-19055571-T-C		not specified	Uncertain significance (Aug 17, 2022)
11-19055783-A-G		not specified	Uncertain significance (Apr 07, 2023)
11-19055828-A-G		not specified	Uncertain significance (Jun 11, 2024)
11-19055879-C-T		not specified	Uncertain significance (Dec 17, 2021)
11-19055882-T-C		not specified	Uncertain significance (Sep 27, 2021)
11-19055973-G-A		not specified	Uncertain significance (Aug 02, 2021)
11-19056012-C-G		not specified	Uncertain significance (May 02, 2024)
11-19056031-G-C		not specified	Uncertain significance (Dec 28, 2022)
11-19056035-A-C		not specified	Uncertain significance (Sep 25, 2023)
11-19056048-T-C		not specified	Uncertain significance (May 24, 2023)
11-19056132-T-C		not specified	Uncertain significance (Jun 06, 2023)
11-19056198-G-C		not specified	Uncertain significance (Jan 17, 2024)
11-19056201-C-T		not specified	Likely benign (Aug 17, 2022)
11-19056224-C-T		not specified	Uncertain significance (Jul 11, 2023)
11-19056225-G-A		not specified	Uncertain significance (Sep 22, 2023)
11-19056239-A-G		not specified	Uncertain significance (Mar 06, 2023)
11-19056258-C-G		not specified	Uncertain significance (Nov 07, 2022)
11-19056266-A-G		not specified	Likely benign (Jan 26, 2022)
11-19056267-C-G		not specified	Uncertain significance (May 31, 2023)
11-19056302-A-T		not specified	Uncertain significance (May 05, 2023)
11-19056305-G-C		not specified	Uncertain significance (Apr 25, 2022)
11-19056342-C-A		not specified	Uncertain significance (Nov 08, 2022)
11-19056359-A-G		not specified	Uncertain significance (Apr 13, 2022)

GnomAD

Source: gnomAD

Gene	Type	Bio Type	Transcript	Coding Exons	Length
MRGPRX2	protein_coding	protein_coding	ENST00000329773	1	6227

pLI Probability LOF Intolerant	pRec Probability LOF Recessive	Individuals with no LOFs	Individuals with Homozygous LOFs	Individuals with Heterozygous LOFs	Defined	p

	Z-Score	Observed	Expected	Observed/Expected	Mutation Rate	Total Possible in Transcript
Missense	0.367	176	190	0.925	0.0000113	2132
Missense in Polyphen		31	34.732	0.89255		467
Synonymous	-0.775	95	85.9	1.11	0.00000542	719
Loss of Function

LoF frequencies by population

Ethnicity	Sum of pLOFs	p
African & African-American	0.00	0.00
Ashkenazi Jewish
East Asian
Finnish
European (Non-Finnish)
Middle Eastern
South Asian
Other

dbNSFP

Source: dbNSFP

• Function: FUNCTION: Mast cell-specific receptor for basic secretagogues, i.e. cationic amphiphilic drugs, as well as endo- or exogenous peptides, consisting of a basic head group and a hydrophobic core (PubMed:25517090). Recognizes and binds small molecules containing a cyclized tetrahydroisoquinoline (THIQ), such as non-steroidal neuromuscular blocking drugs (NMBDs), including tubocurarine and atracurium. In response to these compounds, mediates pseudo- allergic reactions characterized by histamine release, inflammation and airway contraction (By similarity). Acts as a receptor for a number of other ligands, including peptides and alkaloids, such as cortistatin-14, proadrenomedullin N-terminal peptides PAMP-12 and, at lower extent, PAMP-20, antibacterial protein LL-37, PMX-53 peptide, beta-defensins, and complanadine A. {ECO:0000250|UniProtKB:Q3KNA1, ECO:0000269|PubMed:15823563, ECO:0000269|PubMed:21441599, ECO:0000269|PubMed:22069323, ECO:0000269|PubMed:23698749, ECO:0000269|PubMed:24930830, ECO:0000269|PubMed:25517090, ECO:0000305|PubMed:12915402}.

Recessive Scores

• pRec: 0.0833

Intolerance Scores

• loftool: 0.602
• rvis_EVS: 1.75
• rvis_percentile_EVS: 96.67

Haploinsufficiency Scores

• pHI: 0.0729
• hipred: N
• hipred_score: 0.112

Essentials

• essential_gene_CRISPR: N
• essential_gene_CRISPR2: N
• essential_gene_gene_trap: N
• gene_indispensability_pred: N
• gene_indispensability_score: 0.000130

Gene Damage Prediction

	All	Recessive	Dominant
Mendelian	Medium	Medium	Medium
Primary Immunodeficiency	Medium	Medium	High
Cancer	Medium	Medium	Medium

Mouse Genome Informatics

• Gene name: Mrgprx2

Gene ontology

• Biological process: G protein-coupled receptor signaling pathway;sensory perception of pain;sleep;positive regulation of cytokinesis;mast cell degranulation;mast cell activation
• Cellular component: plasma membrane;integral component of membrane;mast cell granule
• Molecular function: G protein-coupled receptor activity;neuropeptide binding;mast cell secretagogue receptor activity