Structural highlights
Function
[DOT1L_HUMAN] Histone methyltransferase. Methylates 'Lys-79' of histone H3. Nucleosomes are preferred as substrate compared to free histones. Binds to DNA.
Publication Abstract from PubMed
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.
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 KS, Tiedt R, Stauffer F ACS Med Chem Lett. 2016 Jun 6;7(8):730-4. doi: 10.1021/acsmedchemlett.6b00168., eCollection 2016 Aug 11. PMID:27563394[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Scheufler C, Mobitz H, Gaul C, Ragot C, Be C, Fernandez C, Beyer KS, Tiedt R, Stauffer F. Optimization of a Fragment-Based Screening Hit toward Potent DOT1L Inhibitors Interacting in an Induced Binding Pocket. ACS Med Chem Lett. 2016 Jun 6;7(8):730-4. doi: 10.1021/acsmedchemlett.6b00168., eCollection 2016 Aug 11. PMID:27563394 doi:http://dx.doi.org/10.1021/acsmedchemlett.6b00168
