+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 1tac | ||||||
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タイトル | HIV-1 TAT CYS-, NMR, 10 STRUCTURES | ||||||
要素 | TAT PROTEIN | ||||||
キーワード | TRANSCRIPTION REGULATION / HIV-1 / TRANSACTIVATION / RNA BINDING | ||||||
機能・相同性 | 機能・相同性情報 viral gene expression / trans-activation response element binding / regulatory region RNA binding / protein serine/threonine phosphatase inhibitor activity / positive regulation of viral transcription / symbiont-mediated perturbation of host chromatin organization / symbiont-mediated suppression of host translation initiation / host cell nucleolus / actinin binding / negative regulation of peptidyl-threonine phosphorylation ...viral gene expression / trans-activation response element binding / regulatory region RNA binding / protein serine/threonine phosphatase inhibitor activity / positive regulation of viral transcription / symbiont-mediated perturbation of host chromatin organization / symbiont-mediated suppression of host translation initiation / host cell nucleolus / actinin binding / negative regulation of peptidyl-threonine phosphorylation / RNA-binding transcription regulator activity / cyclin binding / positive regulation of transcription elongation by RNA polymerase II / host cell cytoplasm / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated suppression of host innate immune response / protein domain specific binding / virus-mediated perturbation of host defense response / DNA-templated transcription / apoptotic process / extracellular region / metal ion binding 類似検索 - 分子機能 | ||||||
生物種 | Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) | ||||||
手法 | 溶液NMR / SIMULATED ANNEALING, RESTRAINED MOLECULAR DYNAMICS | ||||||
データ登録者 | Roesch, P. / Boehm, M. / Sticht, H. | ||||||
引用 | ジャーナル: To be Published タイトル: Solution Structure of HIV-1 Tat Protein 著者: Boehm, M. / Sticht, H. / Seidel, G. / Roesch, P. #1: ジャーナル: J.Mol.Biol. / 年: 1995 タイトル: Structural Studies of HIV-1 Tat Protein 著者: Bayer, P. / Kraft, M. / Ejchart, A. / Westendorp, M. / Frank, R. / Rosch, P. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 1tac.cif.gz | 270.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb1tac.ent.gz | 223.1 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 1tac.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 1tac_validation.pdf.gz | 356.3 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 1tac_full_validation.pdf.gz | 456.6 KB | 表示 | |
XML形式データ | 1tac_validation.xml.gz | 24.6 KB | 表示 | |
CIF形式データ | 1tac_validation.cif.gz | 37.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ta/1tac ftp://data.pdbj.org/pub/pdb/validation_reports/ta/1tac | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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NMR アンサンブル |
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-要素
#1: タンパク質 | 分子量: 9562.662 Da / 分子数: 1 / 変異: M1L, C22S, C25A, C27A, C30S, C31A, C34S, C37A / 由来タイプ: 組換発現 由来: (組換発現) Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) 属: Lentivirus / 細胞株: BL21 / 遺伝子: TATCYS- / Variant: ZAIRE 2 / プラスミド: BL21 / 生物種 (発現宿主): Escherichia coli / 遺伝子 (発現宿主): TATCYS- / 発現宿主: Escherichia coli BL21(DE3) (大腸菌) / 株 (発現宿主): BL21 (DE3) / 参照: UniProt: P12506 |
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-実験情報
-実験
実験 | 手法: 溶液NMR | ||||||||||||||||||||||||||||||||||||||||||||
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NMR実験 |
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-試料調製
詳細 | 内容: H2O/D2O (9:1) |
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試料状態 | イオン強度: 0.85 M / pH: 5 / 圧: 10E+5 PA atm / 温度: 298 K |
-NMR測定
NMRスペクトロメーター | タイプ: Bruker AMX600 / 製造業者: Bruker / モデル: AMX600 / 磁場強度: 600 MHz |
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-解析
ソフトウェア |
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NMR software |
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精密化 | 手法: SIMULATED ANNEALING, RESTRAINED MOLECULAR DYNAMICS / ソフトェア番号: 1 詳細: DESCRIPTION OF THE STRATEGY USED FOR NMR STRUCTURE CALCULATION AND REFINEMENT: NOE CROSS-PEAKS WERE DIVIDED INTO THREE CATEGORIES AND ASSIGNED DISTANCE RANGES ACCORDING TO THEIR INTENSITY: STRONG (<0.29 NM); MEDIUM (<0.42 NM); WEAK (<0.57 NM). PEAK INTENSITIES WERE ESTIMATED FROM THE NUMBER OF CONTOURS IN NOESY SPECTRUM. 23 3JHNA COUPLING CONSTANTS WERE EXTRACTED FROM DQF-COSY SPECTRUM, AND CONVERTED TO PHI-ANGLES ACCORDING THE KARPLUS EQUATION. THE STRUCTURE CALCULATIONS USED MODIFIED AB INITIO SIMULATED ANNEALING (SA. INP) AND REFINEMENT (REFINE. INP) PROTOCOLS FROM THE X-PLOR PROGRAM PACKAGE WHICH INCLUDED FLOATING ASSIGNMENT OF PROCHIRAL GROUPS, REDUCED PRESENTATION FOR NON-BOND INTERACTIONS FOR PART OF THE CALCULATION, REFINEMENT AGAINST CONFORMATIONAL DATABASE AND DIRECT REFINEMENT AGAINST 3JHNA COUPLING CONSTANTS. IN EACH ROUND OF STRUCTURE CALCULATION, 100 STRUCTURES WERE CALCULATED FROM TEMPLATES WITH RANDOM BACKBONE TORSION ANGLES. IN THE CONFORMATIONAL SEARCH PHASE 60 PS OF MOLECULAR DYNAMICS WERE SIMULATED AT 2000 K. THE REFINEMENT COMPRISED A TWO-PHASE COOLING PROCEDURE TREATING THE NON-BONDED INTERACTIONS BETWEEN ALL ATOMS BY A REPULSIVE ('REPEL') POTENTIAL. IN THE FIRST REFINEMENT STAGE, THE SYSTEM WAS COOLED FROM 2000 K TO 1000 K WITHIN 135 PS, CONCOMITANTLY INCREASING THE FORCE CONSTANTS TO THEIR FINAL VALUES. IN THE NEXT STAGE OF THE CALCULATION THE SYSTEM WAS COOLED FROM 1000 K TO 100 K WITHIN 90 PS, APPLYING THE HIGH FORCE CONSTANTS OBTAINED AT THE END OF THE PREVIOUS COOLING STAGE. DURING ALL STAGES OF THE CALCULATION A TIMESTEP OF 3 FS WAS USED. THEN, 500 STEPS OF POWELL ENERGY MINIMIZATION WERE PERFORMED, USING AN ATTRACTIVE LENARD-JONES POTENTIAL, BUT NO EXPLICIT ELECTROSTATICS AND RAMACHANDRAN DATABASIS POTENTIAL. OF THE 240 RESULTING STRUCTURES, THOSE 10 STRUCTURES THAT SHOWED THE LOWEST ENERGY AND THE LEAST VIOLATION OF THE EXPERIMENTAL DATA WERE SELECTED FOR FURTHER CHARACTERIZATION. GEOMETRY OF THE STRUCTURES AND ELEMENTS OF SECONDARY STRUCTURE WERE ANALYZED USING PROCHECK AND DSSP. | ||||||||||||
NMRアンサンブル | コンフォーマー選択の基準: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 計算したコンフォーマーの数: 240 / 登録したコンフォーマーの数: 10 |