5AX3 image
Deposition Date 2015-07-14
Release Date 2016-02-10
Last Version Date 2023-11-08
Entry Detail
PDB ID:
5AX3
Keywords:
TRANSFERASE/TRANSFERASE INHIBITOR
Title:
Crystal structure of ERK2 complexed with allosteric and ATP-competitive inhibitors.
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli BL21
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.98 Å
R-Value Free:
0.28
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
5AX3 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Mitogen-activated protein kinase 1
Gene (Uniprot):MAPK1
Chain IDs:A
Chain Length:368
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P28482 Pfam ID:PF00069 EC:2.7.11.24
Protein Blast
Polymer Type:polypeptide(L)
Molecule:allosteric and ATP-competitive inhibitor
Chain IDs:B
Chain Length:12
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P40763
Ligand Molecules
5ID
Primary Citation
Identification of allosteric ERK2 inhibitors through in silico biased screening and competitive binding assay
Bioorg.Med.Chem.Lett. 26 955 958 (2016)
PMID: 26733474 DOI: 10.1016/j.bmcl.2015.12.056

Abstact

Extracellular signal-regulated kinase 2 (ERK2) is a drug target for type 2 diabetes mellitus. A peptide-type ERK2 inhibitor (PEP) was discovered in the previous study through the knowledge-based method and showed physiological effects on the db/db mice model of type 2 diabetes. Here, the crystal structure showed that PEP bound to the allosteric site without the interruption of the ATP competitive inhibitor binding to ERK2. An in silico biased-screening using the focused library rendered three compounds with inhibitory activity of IC50 <100 μM. Among them, two compounds revealed the concentration-dependent competition with PEP and could be lead compounds for antidiabetic medicine.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
5AX3