PEAR1

Chr 1

platelet endothelial aggregation receptor 1

Also known as: JEDI, MEGF12

PEAR1 is a platelet receptor that signals upon the formation of platelet-platelet contacts independent of platelet activation and secondary to platelet aggregation (Nanda et al., 2005 [PubMed 15851471]).[supplied by OMIM, Mar 2008]

OMIMResearchGenerating clinical summary…
MultiplemechanismLOEUF 0.89
Clinical SummaryPEAR1
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
0.89LOEUF
pLI 0.000
Z-score 2.26
OE 0.68 (0.530.89)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
0.71Z-score
OE missense 0.92 (0.860.99)
595 obs / 645.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.68 (0.530.89)
00.351.4
Missense OE?0.92 (0.860.99)
00.61.4
Synonymous OE?1.02
01.21.6
LoF obs/exp: 40 / 58.7Missense obs/exp: 595 / 645.9Syn Z: -0.30

This gene — mechanism propensity

DN
0.6552th %ile
GOF
0.6833th %ile
LOF
0.3647th %ile

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

PEAR1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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