ISDA

Deposition Date 2007-11-26

Release Date 2008-12-09

Last Version Date 2024-10-09

Entry Detail

PDB ID:

3BG8

Keywords:

HYDROLASE

Title:

Crystal structure of Factor XIa in complex with Clavatadine A

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Pichia pastoris

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.60 Å

R-Value Free:

0.19

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

I 2 3

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Coagulation factor XIa light chain
Gene (Uniprot):F11
Chain IDs:A
Chain Length:238
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P03951 Pfam ID:PF00089 EC:3.4.21.27

Ligand Molecules

BEN

G0R

SO4

Primary Citation

Clavatadine A, a natural product with selective recognition and irreversible inhibition of factor XIa.

Buchanan, M.S, Carroll, A.R, Wessling, D, Jobling, M, Avery, V.M, Davis, R.A, Feng, Y, Xue, Y, Oster, L, Fex, T, Deinum, J, Hooper, J.N, Quinn, R.J.Show

J.Med.Chem. 51 3583 3587 (2008)

PMID: 18510371 DOI: 10.1021/jm800314b

Abstact

Bioassay-guided fractionation of a CH2Cl2/MeOH extract of the sponge Suberea clavata using the serine protease factor XIa to detect antithrombotic activity led to the isolation of the new marine natural products, clavatadines A and B. Clavatadines A and B inhibited factor XIa with IC50's of 1.3 and 27 microM, respectively. A crystal structure of protein-inhibitor (clavatadine A) complex was obtained and revealed interesting selective binding and irreversible inhibition of factor XIa. The cocrystal structure provides guidance for the design and synthesis of future factor XIa inhibitors as antithrombotic agents.

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Primary Citation of related structures