8E3R

Human PU.1 ETS-Domain (165-270) Bound to d(AATAAAAGGAAGTGGG)

8E3R の概要

• エントリーDOI: 10.2210/pdb8e3r/pdb
• 関連するPDBエントリー: 8E3K
• 分子名称: DNA (5'-D(*AP*AP*TP*AP*AP*AP*AP*GP*GP*AP*AP*GP*TP*GP*GP*G)-3'), DNA (5'-D(*TP*CP*CP*CP*AP*CP*TP*TP*CP*CP*TP*TP*TP*TP*AP*T)-3'), Transcription factor PU.1, ... (4 entities in total)
• 機能のキーワード: transcription factor, protein-dna complex, ets family, ets, pu.1, transcription-dna complex, transcription/dna
• 由来する生物種: Homo sapiens (human); 詳細
• タンパク質・核酸の鎖数: 3
• 化学式量合計: 22230.99

構造登録者

Terrell, J.R.,Poon, G.M.K. (登録日: 2022-08-17, 公開日: 2023-07-05, 最終更新日: 2023-10-25)

主引用文献

Terrell, J.R.,Taylor, S.J.,Schneider, A.L.,Lu, Y.,Vernon, T.N.,Xhani, S.,Gumpper, R.H.,Luo, M.,Wilson, W.D.,Steidl, U.,Poon, G.M.K.
DNA selection by the master transcription factor PU.1.
Cell Rep, 42:112671-112671, 2023

PubMed Abstract: The master transcriptional regulator PU.1/Spi-1 engages DNA sites with affinities spanning multiple orders of magnitude. To elucidate this remarkable plasticity, we have characterized 22 high-resolution co-crystallographic PU.1/DNA complexes across the addressable affinity range in myeloid gene transactivation. Over a purine-rich core (such as 5'-GGAA-3') flanked by variable sequences, affinity is negotiated by direct readout on the 5' flank via a critical glutamine (Q226) sidechain and by indirect readout on the 3' flank by sequence-dependent helical flexibility. Direct readout by Q226 dynamically specifies PU.1's characteristic preference for purines and explains the pathogenic mutation Q226E in Waldenström macroglobulinemia. The structures also reveal how disruption of Q226 mediates strand-specific inhibition by DNA methylation and the recognition of non-canonical sites, including the authentic binding sequence at the CD11b promoter. A re-synthesis of phylogenetic and structural data on the ETS family, considering the centrality of Q226 in PU.1, unifies the model of DNA selection by ETS proteins.

PubMed: 37352101
DOI: 10.1016/j.celrep.2023.112671

実験手法

X-RAY DIFFRACTION (1.45 Å)