- PDB-3a0r: Crystal structure of histidine kinase ThkA (TM1359) in complex wi... -
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基本情報
登録情報
データベース: PDB / ID: 3a0r
タイトル
Crystal structure of histidine kinase ThkA (TM1359) in complex with response regulator protein TrrA (TM1360)
要素
Response regulator
Sensor protein
キーワード
TRANSFERASE / four helix bundle / PAS fold / Kinase / Phosphoprotein / Two-component regulatory system
機能・相同性
機能・相同性情報
histidine kinase / phosphorelay signal transduction system / phosphorelay sensor kinase activity / regulation of DNA-templated transcription / DNA binding / ATP binding / metal ion binding 類似検索 - 分子機能
Signal transduction histidine kinase, dimerisation/phosphotransfer (DHp) domain / Transcriptional regulatory protein WalR-like / His Kinase A (phospho-acceptor) domain / His Kinase A (phosphoacceptor) domain / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain / Signal transduction histidine kinase-related protein, C-terminal / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily / PAS domain / Histidine kinase domain / Histidine kinase domain profile. ...Signal transduction histidine kinase, dimerisation/phosphotransfer (DHp) domain / Transcriptional regulatory protein WalR-like / His Kinase A (phospho-acceptor) domain / His Kinase A (phosphoacceptor) domain / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain / Signal transduction histidine kinase-related protein, C-terminal / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily / PAS domain / Histidine kinase domain / Histidine kinase domain profile. / Response regulator receiver domain / cheY-homologous receiver domain / Signal transduction response regulator, receiver domain / Response regulatory domain profile. / Histidine kinase-like ATPase, C-terminal domain / Heat Shock Protein 90 / CheY-like superfamily / Domain present in phytochromes and cGMP-specific phosphodiesterases. / GAF domain / GAF-like domain superfamily / Beta-Lactamase / PAS fold / PAS fold / Response regulator / PAS domain / PAS repeat profile. / Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase / PAS domain / PAS domain superfamily / Histidine kinase-like ATPases / Histidine kinase/HSP90-like ATPase / Histidine kinase/HSP90-like ATPase superfamily / Helix Hairpins / Rossmann fold / 2-Layer Sandwich / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta 類似検索 - ドメイン・相同性
解像度: 3.8→50 Å / Num. obs: 11189 / % possible obs: 94.9 % / Observed criterion σ(I): -1 / 冗長度: 7.4 % / Biso Wilson estimate: 136.94 Å2 / Rsym value: 0.054 / Net I/σ(I): 22.6
反射 シェル
解像度: 3.8→3.89 Å / 冗長度: 3.6 % / Mean I/σ(I) obs: 1.2 / Rsym value: 0.362 / % possible all: 85.1
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解析
ソフトウェア
名称
バージョン
分類
SHARP
位相決定
REFMAC
5.2.0019
精密化
HKL-2000
データ削減
HKL-2000
データスケーリング
精密化
構造決定の手法: 多波長異常分散 / 解像度: 3.8→20 Å / Cor.coef. Fo:Fc: 0.917 / Cor.coef. Fo:Fc free: 0.9 / Occupancy max: 1 / Occupancy min: 0.5 / SU B: 280.799 / SU ML: 1.447 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R Free: 0.862 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. IN THE INITIAL MODEL BUILDING OF THIS ENTRY (3A0R), THE HIGH RESOLUTION STRUCTURES OF THE FOLLOWING FOUR STRUCTURAL PARTS WERE USED AS A ...詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. IN THE INITIAL MODEL BUILDING OF THIS ENTRY (3A0R), THE HIGH RESOLUTION STRUCTURES OF THE FOLLOWING FOUR STRUCTURAL PARTS WERE USED AS A STARTING MODEL: PAS DOMAIN (3A0S), DHP DOMAIN (2C2A), CA DOMAIN (3A0T) OF THKA , AND RESPONSE REGULATOR TRRA (3A0U). THESE MODELS WERE FITTED INTO THE 3.8 A RESOLUTION MAP THAT WAS EXPERIMENTALLY OBTAINED BY MAD PHASING, AND THEN INDIVIDUAL ATOMS WERE REFINED. AMONG THESE FOUR STRUCTURAL PARTS IN THE THKA/TRRA COMPLEX, TRRA SHOWS A VERY WEAK ELECTRON DENSITY. THE LOOPS BETA1-ALPHA1, BETA2-ALPHA2, ALPHA2-BETA3, ALPHA3-BETA4 OF TRRA ARE COMPLETELY DISORDERED. THE ALPHA4 AND STRANDS BETA1, BETA2, BETA3 OF TRRA SHOW AMBIGUOUS ELECTRON DENSITY. THE DENSITY FOR THE LOOP ALPHA6-ALPHA7 OF THE DHP DOMAIN IS NOT WELL-DEFINED. THE ATOMIC MODEL OF THESE REGIONS IS NOT ACCURATELY MODELED. THE ATP-LID REGION OF THE CA DOMAIN COULD NOT BE BUILT DUE TO DISORDER, BECAUSE IT DOES NOT HAVE STABLE CONFORMATION IN THE ABSENCE OF THE NUCLEOTIDE.
Rfactor
反射数
%反射
Selection details
Rfree
0.37098
544
5 %
RANDOM
Rwork
0.35
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obs
0.35094
10381
98.18 %
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溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK