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From Proteopedia
Structure of HDAC2 in complex with a macrocyclic inhibitor (compound 25)
Structural highlights
FunctionHDAC2_HUMAN Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. Histone deacetylases act via the formation of large multiprotein complexes. Forms transcriptional repressor complexes by associating with MAD, SIN3, YY1 and N-COR. Interacts in the late S-phase of DNA-replication with DNMT1 in the other transcriptional repressor complex composed of DNMT1, DMAP1, PCNA, CAF1. Deacetylates TSHZ3 and regulates its transcriptional repressor activity. Component of a RCOR/GFI/KDM1A/HDAC complex that suppresses, via histone deacetylase (HDAC) recruitment, a number of genes implicated in multilineage blood cell development.[1] Publication Abstract from PubMedA series of unique macrocyclic HDACs 1, 2, and 3 selective inhibitors were identified with good enzymatic activity and high selectivity over HDACs 6 and 8. These macrocyclic HDAC inhibitors used an ethyl ketone as the zinc-binding group. Compounds 25 and 26 stood out as leads due to their low double-digit nM EC50s in the 2C4 cell-based HIV latency reactivation assay. The PK profiles of these macrocyclic HDAC inhibitors still needed improvement. Discovery of macrocyclic HDACs 1, 2, and 3 selective inhibitors for HIV latency reactivation.,Yu W, Fells J, Clausen D, Liu J, Klein DJ, Christine Chung C, Myers RW, Wu J, Wu G, Howell BJ, Barnard RJO, Kozlowski J Bioorg Med Chem Lett. 2021 Jun 4;47:128168. doi: 10.1016/j.bmcl.2021.128168. PMID:34091041[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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