Thrombin-Activatable Fibrinolysis Inhibitor
CPB2proteinTAFI cross-links fibrin and inhibits plasmin-mediated fibrinolysis, stabilizing the occluding thrombus in Type 1 MI.
Pathway placement
Cascade stepCoagulation & thrombus formation
Confidencemedium
RationaleThrombin-activated inhibitor of fibrinolysis; regulates fibrin breakdown during thrombosis.
Druggability
DruggableYes
Known drugs / candidates0
Small-molecule tractableYes
Antibody tractableYes
EnsemblENSG00000080618
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I84
C — confounder / Type-II63
A — assay feasibility68
E — evidence strength32
T1DI (composite)13
Specificity differential (R−C)+21.2
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)
Literature evidence(7)
- Elevated plasma factor XI predicts cardiovascular events in patients with type 2 diabetes: a long-term observational study.Cardiovascular diabetology · 2023 · PMID 37460982 · doi
- [Predictive value of four items of new thrombus markers combined with conventional coagulation tests for thrombosis in antiphospholipid syndrome].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2023 · PMID 38101785 · doi
- A Prothrombotic State in Patients With a History of Left Ventricular Thrombus.The American journal of cardiology · 2019 · PMID 30717886 · doi
- Beneficial effect of combined spironolactone and quinapril treatment on thrombosis and hemostasis in 2K1C hypertensive rats.Journal of physiology and pharmacology : an official journal of the Polish Physiological Society · 2018 · PMID 29980144 · doi
- Altered plasma fibrin clot properties in essential thrombocythemia.Platelets · 2015 · PMID 25989112 · doi
- Plasma levels of carboxypeptidase U (CPU, CPB2 or TAFIa) are elevated in patients with acute myocardial infarction.Journal of thrombosis and haemostasis : JTH · 2015 · PMID 26340515 · doi
- Fibrinolytic status in acute coronary syndromes: evidence of differences in relation to clinical features and pathophysiological pathways.Thrombosis and haemostasis · 2012 · PMID 22538774 · doi