9AZK
Macrocyclic inhibitors targeting the prime site of the fibrinolytic serine protease plasmin
This is a non-PDB format compatible entry.
Summary for 9AZK
| Entry DOI | 10.2210/pdb9azk/pdb |
| Descriptor | Plasminogen, (1r,4S)-4-(aminomethyl)-N-[(24S)-5-methyl-8,11,16,23-tetraoxo-7,10,15,22-tetraazatetracyclo[24.2.2.2~18,21~.1~2,6~]tritriaconta-1(28),2(33),3,5,18,20,26,29,31-nonaen-24-yl]cyclohexane-1-carboxamide (3 entities in total) |
| Functional Keywords | protease inhibitor, fibrinolysis, hydrolase-inhibitor complex, hydrolase/inhibitor |
| Biological source | Homo sapiens (human) |
| Total number of polymer chains | 6 |
| Total formula weight | 168013.27 |
| Authors | Guojie, W. (deposition date: 2024-03-11, release date: 2024-10-30, Last modification date: 2025-05-21) |
| Primary citation | Wiedemeyer, S.J.A.,Wu, G.,Lang-Henkel, H.,Whisstock, J.C.,Law, R.H.P.,Steinmetzer, T. Macrocyclic Inhibitors Targeting the Prime Site of the Fibrinolytic Serine Protease Plasmin. Chemmedchem, 19:e202400360-e202400360, 2024 Cited by PubMed Abstract: Two series of macrocyclic inhibitors addressing the S1 pocket and the prime site of the fibrinolytic serine protease plasmin have been developed. In the first series, a P1 tranexamoyl residue was coupled to 4-aminophenylalanine in P1' position, which provided moderately potent inhibitors with inhibition constants around 1 μM. In the second series, a substituted biphenylalanine was incorporated as P1' residue leading to approximately 1000-fold stronger plasmin inhibitors, the best compounds possess subnanomolar inhibition constants. The most effective compounds already exhibit a certain selectivity as plasmin inhibitors compared to other trypsin-like serine proteases such as trypsin, plasma kallikrein, thrombin, activated protein Ca, as well as factors XIa and Xa. For inhibitor 28 of the second series, the co-crystal structure in complex with a Ser195Ala microplasmin mutant revealed that the P2' residue adopts multiple conformations. Most polar contacts to plasmin and surrounding water molecules are mediated through the P1 tranexamoyl residue, whereas the bound conformation of the macrocycle is mainly stabilized by two intramolecular hydrogen bonds. PubMed: 39118493DOI: 10.1002/cmdc.202400360 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.1 Å) |
Structure validation
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