ISDA

Deposition Date 2011-10-17

Release Date 2012-08-29

Last Version Date 2024-02-28

Entry Detail

PDB ID:

3U8W

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Crystal Structure of p38a Mitogen-Activated Protein Kinase in Complex with a Triazolopyridazinone inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.15 Å

R-Value Free:

0.25

R-Value Work:

0.23

R-Value Observed:

0.23

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Mitogen-activated protein kinase 14
Gene (Uniprot):MAPK14
Chain IDs:A
Chain Length:366
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q16539 Pfam ID:PF00069 EC:2.7.11.24

Ligand Molecules

09J

Primary Citation

Identification of triazolopyridazinones as potent p38alpha inhibitors.

Herberich, B, Jackson, C, Wurz, R.P, Pettus, L.H, Sherman, L, Liu, Q, Henkle, B, Saris, C.J, Wong, L.M, Chmait, S, Lee, M.R, Mohr, C, Hsieh, F, Tasker, A.S.Show

Bioorg.Med.Chem.Lett. 22 1226 1229 (2012)

PMID: 22196117 DOI: 10.1016/j.bmcl.2011.11.067

Abstact

Structure-activity relationship (SAR) investigations of a novel class of triazolopyridazinone p38α mitogen activated protein kinase (MAPK) inhibitors are disclosed. From these studies, increased in vitro potency was observed for 2,6-disubstituted phenyl moieties and N-ethyl triazolopyridazinone cores due to key contacts with Leu108, Ala157 and Val38. Further investigation led to the identification of three compounds, 3g, 3j and 3m that are highly potent inhibitors of LPS-induced MAPKAP kinase 2 (MK2) phosphorylation in 50% human whole blood (hWB), and possess desirable in vivo pharmacokinetic and kinase selectivity profiles.

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Primary Citation of related structures