Scientific Name: Menadione
Brand Name: Not Available
Company Owner: Eli lilly and co
Mechanism Of Action Menadione (vitamin K3) is involved as a cofactor in the posttranslational gamma-carboxylation of glutamic acid residues of certain proteins in the body. These proteins include the vitamin K-dependent coagulation factors II (prothrombin) , VII (proconvertin) , IX (Christmas factor) , X (Stuart factor) , protein C, protein S, protein Zv and a growth-arrest-specific factor (Gas6) . In contrast to the other vitamin K-dependent proteins in the blood coagulation cascade, protein C and protein S serve anticoagulant roles. The two vitamin K-dependent proteins found in bone are osteocalcin, also known as bone G1a (gamma-carboxyglutamate) protein or BGP, and the matrix G1a protein or MGP. Gamma-carboxylation is catalyzed by the vitamin K-dependent gamma-carboxylases. The reduced form of vitamin K, vitamin K hydroquinone, is the actual cofactor for the gamma-carboxylases. Proteins containing gamma-carboxyglutamate are called G1a proteins.
Description of the Drug: Not Available
Protein Data Bank:
Source: DrugBank Online – Retrieved 2023-01-23 from