ISDA

Deposition Date 2014-07-08

Release Date 2014-12-03

Last Version Date 2024-11-20

Entry Detail

PDB ID:

4TY7

Keywords:

Hydrolase/Hydrolase Inhibitor

Title:

Factor XIa in complex with the inhibitor (2S)-6-amino-N-{(1S)-1-[4-(3-amino-2H-indazol-6-yl)-5-chloro-1H-imidazol-2-yl]-2-phenylethyl}-2-ethylhexanamide

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.09 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 32 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Coagulation factor XI
Gene (Uniprot):F11
Mutations:N491G,T493G
Chain IDs:A
Chain Length:244
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P03951 Pfam ID:PF00089 EC:3.4.21.27

Ligand Molecules

39F

EDO

SO4

Primary Citation

Phenylimidazoles as Potent and Selective Inhibitors of Coagulation Factor XIa with in Vivo Antithrombotic Activity.

Hangeland, J.J, Friends, T.J, Rossi, K.A, Smallheer, J.M, Wang, C, Sun, Z, Corte, J.R, Fang, T, Wong, P.C, Rendina, A.R, Barbera, F.A, Bozarth, J.M, Luettgen, J.M, Watson, C.A, Zhang, G, Wei, A, Ramamurthy, V, Morin, P.E, Bisacchi, G.S, Subramaniam, S, Arunachalam, P, Mathur, A, Seiffert, D.A, Wexler, R.R, Quan, M.L, Quan, M.L, Wong, P.C, Wang, C, Woerner, F, Smallheer, J.M, Barbera, F.A, Bozarth, J.M, Brown, R.L, Harpel, M.R, Luettgen, J.M, Morin, P.E, Peterson, T, Ramamurthy, V, Rendina, A.R, Rossi, K.A, Watson, C.A, Wei, A, Zhang, G, Seiffert, D, Wexler, R.R.Show

J.Med.Chem. 57 9915 9932 (2014)

PMID: 25405503 DOI: 10.1021/jm5010607

Abstact

Novel inhibitors of FXIa containing an (S)-2-phenyl-1-(4-phenyl-1H-imidazol-2-yl)ethanamine core have been optimized to provide compound 16b, a potent, reversible inhibitor of FXIa (Ki = 0.3 nM) having in vivo antithrombotic efficacy in the rabbit AV-shunt thrombosis model (ID50 = 0.6 mg/kg + 1 mg kg(-1) h(-1)). Initial analog selection was informed by molecular modeling using compounds 11a and 11h overlaid onto the X-ray crystal structure of tetrahydroquinoline 3 complexed to FXIa. Further optimization was achieved by specific modifications derived from careful analysis of the X-ray crystal structure of the FXIa/11h complex. Compound 16b was well tolerated and enabled extensive pharmacologic evaluation of the FXIa mechanism up to the ID90 for thrombus inhibition.

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Primary Citation of related structures