5TEG image
Entry Detail
PDB ID:
5TEG
Keywords:
TRANSFERASE
Title:
Crystal structure of hSETD8 in complex with histone H4K20 norleucine mutant peptide and S-Adenosylmethionine
Biological Source:
Source Organism:
Homo sapiens
Host Organism:
Escherichia coli
PDB Version:
Deposition Date:
2016-09-21
Release Date:
2016-12-07
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.30 Å
R-Value Free:
0.21
R-Value Work:
0.18
R-Value Observed:
0.19
Space Group:
P 1
5TEG validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:N-lysine methyltransferase KMT5A
Mutations:C302S
Chain IDs:A, B
Chain Length:160
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:Q9NQR1 Pfam ID:PF00856
Protein Blast
Polymer Type:polypeptide(L)
Description:Histone H4 mutant peptide with H4K20norleucine
Mutations:K20NLE
Chain IDs:C (auth: D), D (auth: E)
Chain Length:8
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:P62805
Ligand Molecules
SAM
Primary Citation
Turning a Substrate Peptide into a Potent Inhibitor for the Histone Methyltransferase SETD8.
ACS Med Chem Lett 7 1102 1106 (2016)
PMID: 27994746 DOI: 10.1021/acsmedchemlett.6b00303

Abstact

SETD8 is a histone H4-K20 methyltransferase that plays an essential role in the maintenance of genomic integrity during mitosis and in DNA damage repair, making it an intriguing target for cancer research. While some small molecule inhibitors for SETD8 have been reported, the structural binding modes for these inhibitors have not been revealed. Using the complex structure of the substrate peptide bound to SETD8 as a starting point, different natural and unnatural amino acid substitutions were tested, and a potent (Ki 50 nM, IC50 0.33 μM) and selective norleucine containing peptide inhibitor has been obtained.

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Primary Citation of related structures
5TEG