coagulation factor II, thrombin | S1: Chymotrypsin | IUPHAR/BPS Guide to PHARMACOLOGY

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coagulation factor II, thrombin

Target not currently curated in GtoImmuPdb

Target id: 2362

Nomenclature: coagulation factor II, thrombin

Family: S1: Chymotrypsin

Annotation status:  image of a green circle Annotated and expert reviewed. Please contact us if you can help with updates.  » Email us

This target is also described as a ligand entry: thrombinthrombinthrombin

Gene and Protein Information
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human - 622 11p11.2 F2 coagulation factor II, thrombin
Mouse - 618 2 E1 F2 coagulation factor II
Rat - 617 3q24 F2 coagulation factor II
Previous and Unofficial Names
Cf2 | coagulation factor 2 | FII | thrombin | coagulation factor II (thrombin)
Database Links
Specialist databases
MEROPS S01.217 (Hs)
Other databases
ChEMBL Target
DrugBank Target
Ensembl Gene
Entrez Gene
Human Protein Atlas
KEGG Enzyme
RefSeq Nucleotide
RefSeq Protein
Enzyme Reaction
EC Number:

Download all structure-activity data for this target as a CSV file

Key to terms and symbols View all chemical structures Click column headers to sort
Ligand Sp. Action Value Parameter Reference
lepirudin Hs Inhibition 13.0 pKi 8
pKi 13.0 (Ki 1x10-13 M) [8]
desirudin Hs Inhibition 12.7 pKi 7
pKi 12.7 (Ki 2x10-13 M) [7]
Dup-714 Hs Inhibition 10.4 pKi 3
pKi 10.4 (Ki 4.1x10-11 M) [3]
Description: Affinity for thrombin active site.
AZ12971554 Hs Inhibition 9.5 pKi 1
pKi 9.5 (Ki 3x10-10 M) [1]
melagatran Hs Inhibition 8.7 pKi 4
pKi 8.7 (Ki 2x10-9 M) [4]
bivalirudin Hs Inhibition 8.6 pKi 9
pKi 8.6 (Ki 2.56x10-9 M) [9]
dabigatran Hs Inhibition 8.3 pKi 5
pKi 8.3 (Ki 4.5x10-9 M) [5]
Description: Binding affinity to human thrombin.
argatroban Hs Inhibition 7.7 pKi 6
pKi 7.7 (Ki 1.9x10-8 M) [6]
AR-H067637 Hs Inhibition 8.4 pIC50 2
pIC50 8.4 (IC50 4x10-9 M) [2]
Description: Assay using purified human α-thrombin
ximelagatran Hs Inhibition - -
Clinically-Relevant Mutations and Pathophysiology
Disease:  Cerebral sinovenous thrombosis
Orphanet: ORPHA329217
Disease:  Pregnancy loss, recurrent, susceptibility to, 2
OMIM: 614390
Disease:  Prothrombin deficiency, congenital
Synonyms: Congenital factor II deficiency [Orphanet: ORPHA325]
Prothrombin deficiency [Disease Ontology: DOID:2235]
Disease Ontology: DOID:2235
OMIM: 613679
Orphanet: ORPHA325
Disease:  Stroke, ischemic
Synonyms: Cerebral infarction
Cerebrovascular accident [Disease Ontology: DOID:3455]
Disease Ontology: DOID:3455
OMIM: 601367
Disease:  Thrombophilia due to thrombin defect
Synonyms: Thrombophilia [Disease Ontology: DOID:2452]
Disease Ontology: DOID:2452
OMIM: 188050


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1. AstraZeneca. AZ12971554. Accessed on 12/09/2014. Modified on 12/09/2014.,

2. Deinum J, Mattsson C, Inghardt T, Elg M. (2009) Biochemical and pharmacological effects of the direct thrombin inhibitor AR-H067637. Thromb. Haemost., 101 (6): 1051-9. [PMID:19492147]

3. Galemmo RA Jr., Fevig JM, Carini DJ, Cacciola J, Wells BL, Hillyer GL, Buriak J Jr., Rossi KA, Stouten PFW, Alexander RS et al.. (1996) (N-acyl-N-alkyl)glycyl borolysine analogs: A new class of potent thrombin inhibitors. Bioorganic & Medicinal Chemistry Letters, 6 (24): 2913–2918.

4. Gustafsson D, Antonsson T, Bylund R, Eriksson U, Gyzander E, Nilsson I, Elg M, Mattsson C, Deinum J, Pehrsson S et al.. (1998) Effects of melagatran, a new low-molecular-weight thrombin inhibitor, on thrombin and fibrinolytic enzymes. Thromb. Haemost., 79 (1): 110-8. [PMID:9459334]

5. Hauel NH, Nar H, Priepke H, Ries U, Stassen JM, Wienen W. (2002) Structure-based design of novel potent nonpeptide thrombin inhibitors. J. Med. Chem., 45 (9): 1757-66. [PMID:11960487]

6. Imiya M, Matsuo T. (1997) Inhibition of collagen-induced platelet aggregation by argatroban in patients with acute cerebral infarction. Thromb. Res., 88 (2): 245-50. [PMID:9361377]

7. Johnson PH, Sze P, Winant RC, Hudson D, Underhill P, Lazar JB, Olsen C, Almquist R. (1991) Structure-function and refolding studies of the thrombin-specific inhibitor hirudin. Haemostasis, 21 Suppl 1: 41-8. [PMID:1894196]

8. Warkentin TE, Greinacher A, Craven S, Dewar L, Sheppard JA, Ofosu FA. (2005) Differences in the clinically effective molar concentrations of four direct thrombin inhibitors explain their variable prothrombin time prolongation. Thromb. Haemost., 94 (5): 958-64. [PMID:16363236]

9. Witting JI, Bourdon P, Brezniak DV, Maraganore JM, Fenton 2nd JW. (1992) Thrombin-specific inhibition by and slow cleavage of hirulog-1. Biochem. J., 283 ( Pt 3): 737-43. [PMID:1290488]

How to cite this page

S1: Chymotrypsin: coagulation factor II, thrombin. Last modified on 29/01/2016. Accessed on 23/09/2019. IUPHAR/BPS Guide to PHARMACOLOGY,