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基本情報
登録情報 | データベース: PDB / ID: 4z2m | ||||||
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タイトル | Crystal structure of human SPT16 Mid-AID/H3-H4 tetramer FACT Histone complex | ||||||
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![]() | Transcription/DNA binding protein / Transcription / Transcription-DNA binding protein complex | ||||||
機能・相同性 | ![]() FACT complex / positive regulation of DNA-templated transcription, elongation / nucleosome disassembly / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / negative regulation of megakaryocyte differentiation ...FACT complex / positive regulation of DNA-templated transcription, elongation / nucleosome disassembly / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Formation of HIV elongation complex in the absence of HIV Tat / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / nucleosome binding / RNA Polymerase II Transcription Elongation / Packaging Of Telomere Ends / Formation of RNA Pol II elongation complex / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / RNA Polymerase II Pre-transcription Events / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Inhibition of DNA recombination at telomere / Meiotic synapsis / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / epigenetic regulation of gene expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / TP53 Regulates Transcription of DNA Repair Genes / RNA Polymerase I Promoter Escape / transcription elongation by RNA polymerase II / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / HCMV Early Events / structural constituent of chromatin / nucleosome / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / gene expression / Regulation of TP53 Activity through Phosphorylation / Estrogen-dependent gene expression / transcription by RNA polymerase II / chromosome, telomeric region / DNA replication / cadherin binding / Amyloid fiber formation / protein heterodimerization activity / DNA repair / protein-containing complex / DNA binding / RNA binding / extracellular exosome / extracellular region / nucleoplasm / nucleus / membrane 類似検索 - 分子機能 | ||||||
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手法 | ![]() ![]() ![]() | ||||||
![]() | Tsunaka, Y. / Fujiwara, Y. / Oyama, T. / Hirose, S. / Morikawa, K. | ||||||
![]() | ![]() タイトル: Integrated molecular mechanism directing nucleosome reorganization by human FACT. 著者: Yasuo Tsunaka / Yoshie Fujiwara / Takuji Oyama / Susumu Hirose / Kosuke Morikawa / ![]() 要旨: Facilitates chromatin transcription (FACT) plays essential roles in chromatin remodeling during DNA transcription, replication, and repair. Our structural and biochemical studies of human FACT- ...Facilitates chromatin transcription (FACT) plays essential roles in chromatin remodeling during DNA transcription, replication, and repair. Our structural and biochemical studies of human FACT-histone interactions present precise views of nucleosome reorganization, conducted by the FACT-SPT16 (suppressor of Ty 16) Mid domain and its adjacent acidic AID segment. AID accesses the H2B N-terminal basic region exposed by partial unwrapping of the nucleosomal DNA, thereby triggering the invasion of FACT into the nucleosome. The crystal structure of the Mid domain complexed with an H3-H4 tetramer exhibits two separate contact sites; the Mid domain forms a novel intermolecular β structure with H4. At the other site, the Mid-H2A steric collision on the H2A-docking surface of the H3-H4 tetramer within the nucleosome induces H2A-H2B displacement. This integrated mechanism results in disrupting the H3 αN helix, which is essential for retaining the nucleosomal DNA ends, and hence facilitates DNA stripping from histone. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 242.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 195.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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集合体
登録構造単位 | ![]()
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単位格子 |
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要素
#1: タンパク質 | 分子量: 33372.195 Da / 分子数: 1 / 断片: UNP residues 644-930 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: Q9Y5B9 | ||
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#2: タンパク質 | 分子量: 11919.018 Da / 分子数: 2 / 断片: UNP residues 35-136 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: P68431 #3: タンパク質 | 分子量: 11394.426 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: P62805 |
-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 2.68 Å3/Da / 溶媒含有率: 54.12 % |
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結晶化 | 温度: 277 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 7 詳細: 10% PEG400, 0.9-1.1 M Imidazole, 100-150 mM L-histidine |
-データ収集
回折 | 平均測定温度: 100 K |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: RAYONIX MX-300 / 検出器: CCD / 日付: 2014年7月18日 |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 0.9 Å / 相対比: 1 |
反射 | 解像度: 2.98→50 Å / Num. obs: 17819 / % possible obs: 97.7 % / 冗長度: 6.8 % / Rsym value: 0.078 / Net I/σ(I): 17.4 |
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解析
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精密化 | 構造決定の手法: ![]() 開始モデル: 2CV5 解像度: 2.981→46.963 Å / SU ML: 0.36 / 交差検証法: THROUGHOUT / σ(F): 1.35 / 位相誤差: 25.86 / 立体化学のターゲット値: ML
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溶媒の処理 | 減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 2.981→46.963 Å
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拘束条件 |
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LS精密化 シェル |
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