ISDA

Entry Detail

PDB ID:

5DTQ

Keywords:

TRANSFERASE

Title:

Crystal structure of Dot1L in complex with inhibitor CPD3 [(2,6-dichlorophenyl)(quinolin-6-yl)methanone]

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2015-09-18

Release Date:

2016-06-15

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.61 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 63

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Histone-lysine N-methyltransferase, H3 lysine-79 specific
Chain IDs:A, B
Chain Length:334
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q8TEK3 Pfam ID:PF08123 EC:2.1.1.355

Ligand Molecules

5F6

Primary Citation

Optimization of a Fragment-Based Screening Hit toward Potent DOT1L Inhibitors Interacting in an Induced Binding Pocket.

Scheufler, C, Mobitz, H, Gaul, C, Ragot, C, Be, C, Fernandez, C, Beyer, K.S, Tiedt, R, Stauffer, F.Show

Acs Med.Chem.Lett. 7 730 734 (2016)

PMID: 27563394 DOI: 10.1021/acsmedchemlett.6b00168

Abstact

Mixed lineage leukemia (MLL) gene rearrangement induces leukemic transformation by ectopic recruitment of disruptor of telomeric silencing 1-like protein (DOT1L), a lysine histone methyltransferase, leading to local hypermethylation of H3K79 and misexpression of genes (including HoxA), which drive the leukemic phenotype. A weak fragment-based screening hit identified by SPR was cocrystallized with DOT1L and optimized using structure-based ligand optimization to yield compound 8 (IC50 = 14 nM). This series of inhibitors is structurally not related to cofactor SAM and is not interacting within the SAM binding pocket but induces a pocket adjacent to the SAM binding site.

Legend

Protein

Chemical

Disease

Primary Citation of related structures