Integrin alpha IIb
ITGA2BproteinITGA2B-encoded integrin αIIb subunit forms the αIIbβ3 receptor essential for platelet aggregation and coronary thrombus formation in Type 1 MI.
Pathway placement
Cascade stepPlatelet adhesion & activation
Confidencehigh
RationaleGPIIb/IIIa integrin αIIbβ3 receptor; mediates platelet aggregation and thrombus formation.
Druggability
DruggableYes
Known drugs / candidates6
Small-molecule tractableYes
Antibody tractableYes
EnsemblENSG00000005961
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I81
C — confounder / Type-II49
A — assay feasibility72
E — evidence strength30
T1DI (composite)14
Specificity differential (R−C)+32.2
Confounder panel (Type-II drivers)
No confounder evidence retrieved.
Tier: light (literature co-occurrence proxy — lower confidence). See the discrimination table for all markers.
Assay & specimen
Class-level default (no specific cleared assay)— generic method inferred from analyte class; confirm against a specific product insert before use.
Specimen
Serum or plasma
Collection tube
Serum separator (gold/red-top, SST) · K2/K3-EDTA (lavender-top)
Method / principle
Sandwich immunoassay (ELISA) — research-grade unless a cleared assay exists
Reagent / substrate
Matched anti-target antibody pair (capture + labeled detection)
Platform
ELISA microplate or multiplex (Luminex/MSD)
Turnaround · availability
Send-out / research · Research-grade (no universal clinical assay)
Human genetic evidence
0.570
Open Targets association (myocardial_infarction)
Literature evidence(25)
- Platelet Casein Kinase 2α is a pivotal player in arterial thrombotic occlusion and post-ischemic myocardial remodeling.Cardiovascular research · 2026 · PMID 41556945 · doi
- Oxidized phospholipids on plasminogen are associated with reduced platelet surface marker expression and intrinsic reactivity.Journal of thrombosis and thrombolysis · 2026 · PMID 41525016 · doi
- Plasma Exosomal Proteomics Identifies Differentially Expressed Proteins as Biomarkers for Acute Myocardial Infarction.Biomolecules · 2025 · PMID 40305362 · doi
- Costunolide Reduces DN Inflammatory Response and Renal Thrombosis by Inhibiting NET Formation.Journal of diabetes research · 2025 · PMID 40709100 · doi
- Alterations in platelet proteome signature and impaired platelet integrin αβactivation in patients with COVID-19.Journal of thrombosis and haemostasis : JTH · 2023 · PMID 36716966 · doi
- Ca3.2 T-type calcium channel regulates mouse platelet activation and arterial thrombosis.Journal of thrombosis and haemostasis : JTH · 2022 · PMID 35490411 · doi
- Branched-Chain Amino Acid Catabolism Promotes Thrombosis Risk by Enhancing Tropomodulin-3 Propionylation in Platelets.Circulation · 2020 · PMID 32200651 · doi
- Characterization of Plasma-Derived Small Extracellular Vesicles Indicates Ongoing Endothelial and Platelet Activation in Patients with Thrombotic Antiphospholipid Syndrome.Cells · 2020 · PMID 32414170 · doi
- An extracellular vesicle epitope profile is associated with acute myocardial infarction.Journal of cellular and molecular medicine · 2020 · PMID 32666618 · doi
- NLRP3 regulates platelet integrin αIIbβ3 outside-in signaling, hemostasis and arterial thrombosis.Haematologica · 2018 · PMID 29794149 · doi
- Platelet activity and hypercoagulation in type 2 diabetes.Cardiovascular diabetology · 2018 · PMID 30388964 · doi
- Role of heterotrimeric G proteins in platelet activation and clot formation in platelets treated with integrin αIIbβ3 inhibitor.Platelets · 2017 · PMID 28406726 · doi
- Regulation of oxidized platelet lipidome: implications for coronary artery disease.European heart journal · 2017 · PMID 28431006 · doi
- Plant-based Food Cyanidin-3-Glucoside Modulates Human Platelet Glycoprotein VI Signaling and Inhibits Platelet Activation and Thrombus Formation.The Journal of nutrition · 2017 · PMID 28855423 · doi
- Flow analysis of individual blood extracellular vesicles in acute coronary syndrome.Platelets · 2016 · PMID 27595614 · doi
- Platelet CD40L Modulates Thrombus Growth Via Phosphatidylinositol 3-Kinase β, and Not Via CD40 and IκB Kinase α.Arteriosclerosis, thrombosis, and vascular biology · 2015 · PMID 25908768 · doi
- The pro- and anticoagulant role of blood-borne phagocytes in patients with acute coronary syndrome.Thrombosis and haemostasis · 2013 · PMID 23595567 · doi
- Oligonucleotide microarray and QRT-PCR study of adhesion protein gene expression in acute coronary syndrome patients.Inflammation · 2010 · PMID 20306290 · doi
- Elevated platelet microparticle levels in valvular atrial fibrillation.Hematology (Amsterdam, Netherlands) · 2009 · PMID 19941743 · doi
- Comparison of the effects of cellulose triacetate and polysulfone membrane on GPIIb/IIIa and platelet activation.Blood purification · 2003 · PMID 12601261 · doi
- Induction of platelet thrombi by bacteria and antibodies.Blood · 2002 · PMID 12393652 · doi
- Prothrombotic genetic risk factors in young survivors of myocardial infarction.Blood · 1999 · PMID 10381497
- Glycoprotein IIIa Pl(A) polymorphism associates with progression of coronary artery disease and with myocardial infarction in an autopsy series of middle-aged men who died suddenly.Arteriosclerosis, thrombosis, and vascular biology · 1999 · PMID 10521390 · doi
- Markers of platelet activation in coronary heart disease patients.European journal of clinical investigation · 1994 · PMID 7516880 · doi
- Platelet activation in thrombotic disorders.Nouvelle revue francaise d'hematologie · 1993 · PMID 8511043