- EMDB-9962: Thermococcus kodakarensis RNA polymerase in complex with transcri... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-9962
タイトル
Thermococcus kodakarensis RNA polymerase in complex with transcription factor E and promoter DNA
マップデータ
Cryo-EM single particle analysis 3D reconstruction of RNA polymerase (RNAP) from Thermococcus kodakarensis (Tko), in complex with transcription factor E (TFE) and promotor DNA
試料
複合体: Thermococcus kodakarensis RNA polymerase in complex with transcription factor E and promoter DNA
ダウンロード / ファイル: emd_9962.map.gz / 形式: CCP4 / 大きさ: 20.8 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Cryo-EM single particle analysis 3D reconstruction of RNA polymerase (RNAP) from Thermococcus kodakarensis (Tko), in complex with transcription factor E (TFE) and promotor DNA
全体 : Thermococcus kodakarensis RNA polymerase in complex with transcri...
全体
名称: Thermococcus kodakarensis RNA polymerase in complex with transcription factor E and promoter DNA
要素
複合体: Thermococcus kodakarensis RNA polymerase in complex with transcription factor E and promoter DNA
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超分子 #1: Thermococcus kodakarensis RNA polymerase in complex with transcri...
超分子
名称: Thermococcus kodakarensis RNA polymerase in complex with transcription factor E and promoter DNA タイプ: complex / ID: 1 / 親要素: 0 詳細: RNA polymerase from euryarchaea (Thermococcus kodakarensis) composed of 11 subunits (Rpo1', Rpo1", Rpo2, Rpo3, Rpo4, Rpo5, Rpo6, Rpo7, Rpo10, Rpo11, Rpo12), and in complex with transcription ...詳細: RNA polymerase from euryarchaea (Thermococcus kodakarensis) composed of 11 subunits (Rpo1', Rpo1", Rpo2, Rpo3, Rpo4, Rpo5, Rpo6, Rpo7, Rpo10, Rpo11, Rpo12), and in complex with transcription factor E and promoter DNA
由来(天然)
生物種: Thermococcus kodakarensis KOD1 (古細菌)
分子量
理論値: 410 KDa
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実験情報
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構造解析
手法
クライオ電子顕微鏡法
解析
単粒子再構成法
試料の集合状態
particle
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試料調製
濃度
0.3 mg/mL
緩衝液
pH: 8
グリッド
モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 200 / 支持フィルム - #0 - Film type ID: 1 / 支持フィルム - #0 - 材質: CARBON / 支持フィルム - #0 - トポロジー: HOLEY / 支持フィルム - #1 - Film type ID: 2 / 支持フィルム - #1 - 材質: GRAPHENE OXIDE / 支持フィルム - #1 - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 雰囲気: AIR / 前処理 - 気圧: 26.0 kPa 詳細: Due to preferred orientation of the particles, one dataset was collected using holey carbon EM grid, and another dataset was collected from holey carbon grid coated with graphene oxide. Note ...詳細: Due to preferred orientation of the particles, one dataset was collected using holey carbon EM grid, and another dataset was collected from holey carbon grid coated with graphene oxide. Note that graphene oxide-coated grid was not pre-treated with glow discharge.
凍結
凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 278 K / 装置: FEI VITROBOT MARK IV
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電子顕微鏡法
顕微鏡
FEI TITAN KRIOS
特殊光学系
球面収差補正装置: Image Cs corrector
撮影
フィルム・検出器のモデル: FEI FALCON II (4k x 4k) 検出モード: INTEGRATING / デジタル化 - 画像ごとのフレーム数: 1-30 / 実像数: 3754 / 平均露光時間: 1.8 sec. / 平均電子線量: 63.0 e/Å2
Movie frame data was subjected to motion correction to generate summed micrographs using MotionCor2.
粒子像選択
選択した数: 1388666 詳細: Approximately 10,000 particles were selected manually. 2D class averages from the manual-picked particles were used as a template for automated particle picking in Relion 2.1.
CTF補正
ソフトウェア - 名称: Gctf (ver. 1.06) 詳細: Defocus parameters were calculated from motion-corrected micrographs, using Gctf 1.06. Using the defocus parameters, Cs (0.003, after Cs image corrector tuning) and amplitude contrast (0.1), ...詳細: Defocus parameters were calculated from motion-corrected micrographs, using Gctf 1.06. Using the defocus parameters, Cs (0.003, after Cs image corrector tuning) and amplitude contrast (0.1), CTF phase flipping and amplitude correction was performed during the reconstruction using Relion 2.1.
詳細: PDB file was converted to EM map using e2pdb2mrc.py routine in EMAN2 software package. The reference map was lowpass filtered to 60 angstroms as a startup model.