CRYSTAL STRUCTURE OF A HUMAN FACTOR XA INHIBITOR COMPLEX
[FA10_HUMAN] Defects in F10 are the cause of factor X deficiency (FA10D) [MIM:227600]. A hemorrhagic disease with variable presentation. Affected individuals can manifest prolonged nasal and mucosal hemorrhage, menorrhagia, hematuria, and occasionally hemarthrosis. Some patients do not have clinical bleeding diathesis.                
[FA10_HUMAN] Factor Xa is a vitamin K-dependent glycoprotein that converts prothrombin to thrombin in the presence of factor Va, calcium and phospholipid during blood clotting.
Publication Abstract from PubMed
Structure-based drug design was exploited in the synthesis of 3-(6-chloronaphth-2-ylsulfonyl)aminopyrrolidin-2-one-based factor Xa (fXa) inhibitors, incorporating an alanylamide P4 group with acyclic tertiary amide termini. Optimized hydrophobic contacts of one amide substituent in P4 were complemented by hydrophobicity-modulating features in the second, producing potent fXa inhibitors including examples with excellent anticoagulant properties.
Structure- and property-based design of factor Xa inhibitors: pyrrolidin-2-ones with acyclic alanyl amides as P4 motifs.,Young RJ, Campbell M, Borthwick AD, Brown D, Burns-Kurtis CL, Chan C, Convery MA, Crowe MC, Dayal S, Diallo H, Kelly HA, King NP, Kleanthous S, Mason AM, Mordaunt JE, Patel C, Pateman AJ, Senger S, Shah GP, Smith PW, Watson NS, Weston HE, Zhou P Bioorg Med Chem Lett. 2006 Dec 1;16(23):5953-7. Epub 2006 Sep 18. PMID:16982190
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.