Repositioning Candidate Details

Candidate ID: R1476
Source ID: DB13149
Source Type: approved
Compound Type: biotech
Compound Name: Protein S human
Synonyms: Protein S; Protein S (human); Vitamin K-dependent protein S
Molecular Formula: --
SMILES: --
DrugBank Description: Protein S human is a vitamin K-dependent plasma glycoprotein which has antcoagulant properties . It serves as a negative feedback mechanism in the coagulation cascade.
CAS Number: --
Molecular Weight:
DrugBank Indication: For use in the emergency reversal of coagulation factor deficiency in patients recieving vitamin K antagonist therapy . Protein S is administered as part of a cocktail containing several other coagulation factors.
DrugBank Pharmacology: Protein S acts as an anticoagulant serves as a negative feedback mechanism in the coagulation cascade .
DrugBank MoA: Thrombin converts protein C to activated protein C (APC) . Protein S functions as a cofactor for APC and together they proteolytically cleave factor Va and VIIIa . This inhibits the activities of the prothrombinase and tenase complexes respectively and leads to a reduction in thrombin generation. The reduction in thrombin generation suppresses the coagulation cascade preventing additional clotting from occuring. Protein S is suggested to inhibit factors Va and Xa through protein-protein interactions . Protein S is also suggested to inhibit production of factor Xa by the tenase complex by competing for binding to phospholipids via its gamma-carboxyglutamic acid domain. Protein S is thought to exert an anti-inflammatory effect in addition to its anticoagulant properties. The protein S-C4b-binding protein complex is believed to bind to phosphotidylserines on the cell membranes of apoptotic cells and interact with macrophages, signalling them to phagocytose the cell before it can rupture .
Targets: Coagulation factor V antagonist; Coagulation factor X antagonist; Vitamin K-dependent protein C cofactor
Inclusion Criteria: Therapeutic strategy associated