F2R Antibody

Code CSB-PA267410
Size US$166
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  • The image on the left is immunohistochemistry of paraffin-embedded Human colon cancer tissue using CSB-PA267410(F2R Antibody) at dilution 1/40, on the right is treated with synthetic peptide. (Original magnification: ×200)
  • The image on the left is immunohistochemistry of paraffin-embedded Human ovarian cancer tissue using CSB-PA267410(F2R Antibody) at dilution 1/40, on the right is treated with synthetic peptide. (Original magnification: ×200)
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Product Details

Uniprot No.
Target Names
Alternative Names
F2R; CF2R; PAR1; TR; Proteinase-activated receptor 1; PAR-1; Coagulation factor II receptor; Thrombin receptor
Raised in
Species Reactivity
Synthetic peptide of Human F2R
Immunogen Species
Homo sapiens (Human)
Purification Method
Antigen affinity purification
It differs from different batches. Please contact us to confirm it.
-20°C, pH7.4 PBS, 0.05% NaN3, 40% Glycerol
Tested Applications
Recommended Dilution
Application Recommended Dilution
ELISA 1:2000-1:5000
IHC 1:25-1:100
Troubleshooting and FAQs
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

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Target Background

High affinity receptor for activated thrombin coupled to G proteins that stimulate phosphoinositide hydrolysis. May play a role in platelets activation and in vascular development.
Gene References into Functions
  1. The activation of PAR-1 on the cell surface of SGC7901 and AGS cells was significantly reduced after the knockdown of EPCR. By contrast, blockade of PAR-1 reduced the proliferation and migration of gastric cells in vitro PMID: 29484413
  2. Our structural data showed subtle changes in the binding pose between Vorapaxar and F16357. Transmembrane helices 1, 2, 5, and 7 were most significantly affected; most notably a large kink at F279(5.47) in TM helix 5 of the Vorapaxar complex was completely absent in the F16357 complex. The results of this study facilitate the future development of other therapeutic PAR1 antagonists. PMID: 28881236
  3. Using protein C-factor VII chimera demonstrate that APC light chain amino acid residues outside the EPCR-binding site enable cytoprotective PAR1 signaling. PMID: 28834159
  4. Study demonstrated that nerve activation by mucosal biopsy supernatants depends on proteases. This is a common feature of quiescent ulcerative colitis and irritable bowel syndrome (IBS) and may relate to some common gastrointestinal symptoms. However, only proteases in IBS supernatants signal through PAR1. PMID: 29529042
  5. Data show there was no significant correlation of autoantibodies to coagulation factor II thrombin receptor (F2R; protease-activated receptor 1, PAR1) (PAR1-AB) level with , progression-free (PFS) and overall (OS) survival. PMID: 29848718
  6. we found that activation of the protease-activated receptor 1 (PAR1) induced secretion of TSLP by the corneal stromal cells... we proposed that TSLP might function as the link between increased protease activity and inflammatory responses or itch sensation in the PMID: 28631887
  7. PAR-1 in non-small-cell lung cancer is mainly expressed on cells that constitute the pulmonary tumor microenvironment, including vascular endothelial cells, macrophages and stromal fibroblasts. PMID: 28173772
  8. thrombin binding to PAR-1 receptor activated Gi-protein/c-Src/Pyk2/EGFR/PI3K/Akt/p42/p44 MAPK cascade, which in turn elicited AP-1 activation and ultimately evoked MMP-9 expression and cell migration in SK-N-SH cells. PMID: 27181591
  9. this study demonstrates that TGFbeta is a positive regulator of PAR-1 expression in A549 lung adenocarcinoma cells, which in turn increases the sensitivity of these cells to thrombin signalling PMID: 27566553
  10. Taken together, these results indicated that PAR1 signalingmediated cJun activation promotes early apoptosis of HUVEC cells induced by heat stress. PMID: 28447716
  11. The DHA - naringenin hybrid presented triple antiplatelet activity simultaneously targeting PAR-1, P2Y12 and COX-1 platelet activation pathways PMID: 28844979
  12. Dabigatran increases platelet reactivity by enhancing the thrombin receptor density on platelets PMID: 27992120
  13. Data suggest that the abrogation of protease-activated receptor 1 (PAR1)-dependent signaling pathways may prove a promising strategy for gliomas. PMID: 26616854
  14. these data indicate that KLKB1 induces inflammatory reactions in human dental tissues via protease-activated receptor 1 PMID: 26566265
  15. In this study, we found upregulation of several hemostasis-related genes, including the thrombin-activatable receptor PAR-1 (protease-activated receptor-1), in Runx1/Cbfb-deleted MLL-AF9 cells. Similar to the effect of Runx1/Cbfb deletion, PAR-1 overexpression induced CDKN1A/p21 expression and attenuated proliferation in MLL-AF9 cells PMID: 27819671
  16. Data highlight functional differences in proliferation and barrier integrity between dark keratinocytes and fair keratinocytes that are partly associated with their differential expression of PAR1 and PAR2. PMID: 27979585
  17. the contribution of PAR1 and PAR4 to thrombin-mediated activation of the platelet fibrin receptor (GPIIbIIIa), is reported. PMID: 27784794
  18. In a Cox regression model, fully adjusted for age, race, sex, BMI, and smoking status, carrying a T allele was not associated with MACE (HR 1.19, 95 % CI 0.89-1.59, P = 0.23) or bleeding (HR 0.73, 95 % CI 0.37-1.4, P = 0.34). In conclusion, in our population, F2R IVS-14 PAR1 variability does not affect risk of MACE or bleeding following PCI. PMID: 26446588
  19. These results suggest that stabilization of microtubule-unbound tau by phosphorylation at Ser262/356 via the PAR-1/MARK may act in the initial steps of tau mismetabolism in AD pathogenesis PMID: 27023670
  20. The serum levels of PAR1 might have a diagnostic value in lung cancer patients PMID: 26875892
  21. identified HMGA2 (high mobility group A2) as an important regulator of PAR1-mediated invasion. Inhibition of PAR1 signaling suppresses HMGA2-driven invasion in breast cancer cells PMID: 26165842
  22. Thrombin and the PAR-1 activating peptide, TFLLR, lead to the phosphorylation of eNOS-Ser-1177 in human coronary artery endothelial cells, which was blocked by SCH-79797 (SCH), a PAR-1 inhibitor. PMID: 26729042
  23. Rab11A and Rab11B differentially regulate intracellular trafficking of PAR1 through distinct endosomal sorting mechanisms PMID: 26635365
  24. Establish FXa as a potentially important asthma mediator, stimulating airway smooth muscle function through actions requiring PAR-1 and annexin A2 and involving integrin coactivation. PMID: 26120939
  25. we show that the rs2227744A allele signi fi cantly associates with protection from sarcoidosis (P = 0.003, OR = 0.68 (0.52-0.88) PMID: 26278396
  26. Binding of the PH domain of PAR-1 enables breast cancer growth and extravillous trophoblast invasion. PMID: 26600192
  27. PZ-128 is a promising antiplatelet agent that provides rapid, specific, dose dependent, and reversible inhibition of platelet protease-activated receptor-1 through a novel intracellular mechanism. PMID: 26681756
  28. Bladder PAR activation elicits urothelial MIF release and urothelial MIF receptor signaling at least partly through CXCR4 to result in abdominal hypersensitivity without overt bladder inflammation PMID: 26020638
  29. PAR1-platelet releasate enhances vasculogenesis more potently than PAR4-platelet releasate, and the enhancements require a cooperation of multiple platelet-derived angiogenic regulators. PMID: 25495701
  30. conjugation of a peptide fragment derived from the third intracellular loop (i3) of the protease-activated receptor 1 (PAR1) to a peptide that can selectively target tumours PMID: 26424552
  31. Platelet activation with a PAR1 agonist triggered TGF-beta secretion, which induced EMT of via the downregulation of miR-200b expression, and activated platelets had a chemotactic effect on colon cancer cells mediated by the upregulation of CXCR4 PMID: 25846512
  32. The data reveal a new proprotein convertases -PAR-1-interaction pathway, which offsets the effects of HIV-induced neuroinflammation, viral infection, and potentially the development of HIV-Associated Neurocognitive Disorder. PMID: 26283733
  33. Protease activated receptor-1 deficiency diminishes bleomycin-induced skin fibrosis PMID: 24842054
  34. Proteases found in dust derived from animal feed play an important role in eliciting the dust-mediated inflammatory responses at least partially through activation of PAR1 AND PAR2. PMID: 26092994
  35. Data show that N-linked glycosylation of protease-activated receptor-1 (PAR1) at extracellular loop 2 (ECL2) controls G12/13 versus Gq G-proteins coupling specificity in response to thrombin stimulation. PMID: 26100877
  36. low levels impact placenta establishment and consequently pregnancy outcome PMID: 25496845
  37. The i3 pepducin enhances PAR1/Galpha subunit interactions and induces a conformational change in fluorescently labeled PAR1 in a very similar manner to that induced by thrombin. PMID: 25934391
  38. Apixaban exerts anti-inflammatory effects in mesangial cells by blocking thrombin/protease-activated receptor-1 system. PMID: 25294586
  39. Human PAR1, expressed at low levels in mouse platelets, is unresponsive to agonist peptides. PMID: 24830314
  40. provide evidence against the hypothesis that PAR-1 and PAR-4 stimulation of platelets trigger differential release of alpha-granules PMID: 24776597
  41. The upregulation of MMP-1 protein combined with the overexpression of PAR-1 protein may contribute to the malignant progression of prostate cancer. PMID: 24805876
  42. High protease-activated receptor-1 expression is associated with colorectal cancer. PMID: 25119598
  43. Tissue vascularization was found to be significantly increased in the compact tumor mass of glioblastomas compared to their invasion zone and specific overexpression of PAR-1 within tumor cells and within tumor blood vessels depending upon the tumor area. PMID: 24620969
  44. Data indicate that proteinase-activated receptor 1 (PAR1) was prominently expressed in hematopoietic stem cells. PMID: 24740120
  45. analysis of a P2Y12 receptor mutation and a function-reducing polymorphism in protease-activated receptor 1 in a patient with chronic bleeding [case report] PMID: 24612435
  46. PAR-1 is post-transcriptionally regulated by miR-20b microRNA in human melanoma cells. PAR-1 was found to be expressed in metastatic melanoma cells but was barely detectable in primary melanoma. PMID: 24405508
  47. PAR-1 may play an important role in the metastasis of lung giant cell carcinoma cells by up-regulating intracellular calcium. PMID: 20388375
  48. Activation of PAR-1 stimulates MMP-2 secretion, inhibits rheumatoid arthritis synovial fibroblasts growth and invasion, and decreases production of IL-17 and TNFalpha by them. PMID: 21905006
  49. PAR-1 plays a key role in melanoma progression. PAR-1 & its activating factors on tumor cells & the surrounding stroma induce coagulation & cell signaling promotoing the metastatic phenotype. Review. PMID: 22009534
  50. Our results also show that platelet PAI-1 is increased if incubated for 24 hours, both with addition of PAR1-activating peptide and without activation, which could indicate de novo synthesis. PMID: 22283974

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Subcellular Location
Cell membrane; Multi-pass membrane protein.
Protein Families
G-protein coupled receptor 1 family
Tissue Specificity
Platelets and vascular endothelial cells.
Database Links

HGNC: 3537

OMIM: 187930

KEGG: hsa:2149

STRING: 9606.ENSP00000321326

UniGene: Hs.482562

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