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基本情報
登録情報 | ![]() | ||||||||||||
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タイトル | SWR1 lacking Swc5 subunit in complex with hexasome | ||||||||||||
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![]() | Chromatin remodelling complex / hexasome / DNA BINDING PROTEIN | ||||||||||||
機能・相同性 | ![]() sexual sporulation resulting in formation of a cellular spore / cupric reductase (NADH) activity / TTT Hsp90 cochaperone complex / HATs acetylate histones / global genome nucleotide-excision repair / RNA polymerase I upstream activating factor complex / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / Assembly of the ORC complex at the origin of replication ...sexual sporulation resulting in formation of a cellular spore / cupric reductase (NADH) activity / TTT Hsp90 cochaperone complex / HATs acetylate histones / global genome nucleotide-excision repair / RNA polymerase I upstream activating factor complex / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / Assembly of the ORC complex at the origin of replication / R2TP complex / HDACs deacetylate histones / protein targeting to vacuole / Swr1 complex / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Ino80 complex / Oxidative Stress Induced Senescence / RMTs methylate histone arginines / postreplication repair / SUMOylation of chromatin organization proteins / box C/D snoRNP assembly / recombinational repair / 3'-5' DNA helicase activity / NuA4 histone acetyltransferase complex / RNA Polymerase I Promoter Escape / positive regulation of transcription by RNA polymerase I / nucleolar large rRNA transcription by RNA polymerase I / Estrogen-dependent gene expression / rRNA transcription / intracellular copper ion homeostasis / Ub-specific processing proteases / nucleosome binding / CENP-A containing nucleosome / DNA helicase activity / nuclear periphery / aerobic respiration / helicase activity / rRNA processing / structural constituent of chromatin / nucleosome / heterochromatin formation / nucleosome assembly / chromatin organization / 5'-3' DNA helicase activity / histone binding / molecular adaptor activity / DNA helicase / protein stabilization / chromatin remodeling / protein heterodimerization activity / DNA repair / regulation of transcription by RNA polymerase II / regulation of DNA-templated transcription / chromatin / structural molecule activity / negative regulation of transcription by RNA polymerase II / ATP hydrolysis activity / DNA binding / zinc ion binding / ATP binding / identical protein binding / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() ![]() | ||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.4 Å | ||||||||||||
![]() | Jalal ASB / Wigley DB | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Stabilization of the hexasome intermediate during histone exchange by yeast SWR1 complex. 著者: Adam S B Jalal / Paul Girvan / Eugene Y D Chua / Lexin Liu / Shijie Wang / Elizabeth A McCormack / Michael T Skehan / Carol L Knight / David S Rueda / Dale B Wigley / ![]() 要旨: The yeast SWR1 complex catalyzes the exchange of histone H2A/H2B dimers in nucleosomes with Htz1/H2B dimers. We use cryoelectron microscopy to determine the structure of an enzyme-bound hexasome ...The yeast SWR1 complex catalyzes the exchange of histone H2A/H2B dimers in nucleosomes with Htz1/H2B dimers. We use cryoelectron microscopy to determine the structure of an enzyme-bound hexasome intermediate in the reaction pathway of histone exchange, in which an H2A/H2B dimer has been extracted from a nucleosome prior to the insertion of a dimer comprising Htz1/H2B. The structure reveals a key role for the Swc5 subunit in stabilizing the unwrapping of DNA from the histone core of the hexasome. By engineering a crosslink between an Htz1/H2B dimer and its chaperone protein Chz1, we show that this blocks histone exchange by SWR1 but allows the incoming chaperone-dimer complex to insert into the hexasome. We use this reagent to trap an SWR1/hexasome complex with an incoming Htz1/H2B dimer that shows how the reaction progresses to the next step. Taken together the structures reveal insights into the mechanism of histone exchange by SWR1 complex. | ||||||||||||
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マップデータ | ![]() | 29.5 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 33.7 KB 33.7 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 17.1 KB | 表示 | ![]() |
画像 | ![]() | 134.1 KB | ||
Filedesc metadata | ![]() | 10.1 KB | ||
その他 | ![]() ![]() | 339.7 MB 339.8 MB | ||
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-検証レポート
文書・要旨 | ![]() | 932.5 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 932.1 KB | 表示 | |
XML形式データ | ![]() | 24.6 KB | 表示 | |
CIF形式データ | ![]() | 32.8 KB | 表示 | |
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-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 0.85 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
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試料の構成要素
+全体 : SWR1 lacking Swc5 subunit in complex with hexasome
+超分子 #1: SWR1 lacking Swc5 subunit in complex with hexasome
+分子 #1: Histone H3
+分子 #2: Histone H4
+分子 #3: Histone H2A.1
+分子 #4: Histone H2B.1
+分子 #7: Helicase SWR1
+分子 #8: Actin-like protein ARP6
+分子 #9: Vacuolar protein sorting-associated protein 71
+分子 #10: RuvB-like protein 1
+分子 #11: RuvB-like protein 2
+分子 #12: Vacuolar protein sorting-associated protein 72
+分子 #5: DNA (112-MER)
+分子 #6: DNA (112-MER)
+分子 #13: ADENOSINE-5'-DIPHOSPHATE
+分子 #14: BERYLLIUM TRIFLUORIDE ION
+分子 #15: MAGNESIUM ION
+分子 #16: ZINC ION
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | TFS KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 52.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD 最大 デフォーカス(公称値): 1.9000000000000001 µm 最小 デフォーカス(公称値): 0.7000000000000001 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |