Alpha-2-antiplasmin
SERPINF2proteinAlpha-2-antiplasmin inhibits plasmin-mediated fibrin degradation; its depletion reflects active fibrinolytic turnover and indicates a hypofibrinolytic environment promoting thrombus retention in acute MI.
Pathway placement
Cascade stepCoagulation & thrombus formation
Confidencehigh
RationalePlasmin inhibitor; decreased reflects active fibrinolysis and hypofibrinolytic state.
Druggability
DruggableYes
Known drugs / candidates0
Small-molecule tractableNo
Antibody tractableYes
EnsemblENSG00000167711
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I91
C — confounder / Type-II71
A — assay feasibility68
E — evidence strength34
T1DI (composite)14
Specificity differential (R−C)+20
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)
Literature evidence(7)
- Localization of Hemostasis Elements in Aspirated Coronary Thrombi at Different Stages of Evolution.International journal of molecular sciences · 2024 · PMID 39519297 · doi
- A Prothrombotic State in Patients With a History of Left Ventricular Thrombus.The American journal of cardiology · 2019 · PMID 30717886 · doi
- Altered plasma fibrin clot properties in essential thrombocythemia.Platelets · 2015 · PMID 25989112 · doi
- Plasma and platelet plasminogen activator inhibitor-1 in patients with acute myocardial infarction.Japanese circulation journal · 2000 · PMID 10952148 · doi
- Streptokinase-induced activation of the kallikrein-kinin system and of the contact phase in patients with acute myocardial infarction.Journal of cardiovascular pharmacology · 1998 · PMID 9593077 · doi
- Study on the hypercoagulable state in patients with angina and myocardial infarction.Journal of Tongji Medical University = Tong ji yi ke da xue xue bao · 1998 · PMID 10806795 · doi
- Fibrinolysis in patients with acute ischaemic heart disease. With particular reference to systemic effects of tissue-type plasminogen activator treatment on fibrinolysis, coagulation and complement pathways.Danish medical bulletin · 1993 · PMID 8222763