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8V9S
Distinct Quaternary States, Intermediates, and Autoinhibition During Loading of the DnaB-Replicative Helicase by the Phage Lambda P Helicase Loader
提交 2023-12-09
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构建体不同
突变/修饰不同
聚集状态不同
配体/离子不同
实验方法不同
实验环境不同
结构质量不同
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Assembly 1
蛋白单体
单体;蛋白 × 1
PDB 声明:monomeric
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链 A
105–210(106 aa)
片段:residues 105 to 210
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非标准单体:是(mmCIF未提供具体位点)
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未记录非水小分子
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X-RAY DIFFRACTION
X-ray结晶条件
VAPOR DIFFUSION, SITTING DROP;298.15 K;Crystals were prepared using the sitting drop vapor diffusion method by mixing either 0.1, or 0.2, or 0.4 uL of the protein solution and 0.2 uL of a series of commercially available crystallization screens (Qiagen). Optimized crystals for X-ray diffraction were grown at room temperature in a buffer consisting of 3 M to 4 M NaCl with 0.1 M HEPES-NaOH, pH 7 to 8 and required 7 days to form.
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分辨率 1.86 Å
R-free 0.244
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8V9T
Ecoli DnaB helicase and Phage Lambda loader P with ADP-Mg in a 6:5 stoichiometry ratio
提交 2023-12-09
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构建体不同
突变/修饰不同
配体/离子不同
实验环境不同
结构质量不同
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Assembly 1
蛋白异源复合物
异源复合物;蛋白 × 11
PDB 声明:undecameric
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链 V
1–233(233 aa)
链 W
1–233(233 aa)
链 X
1–233(233 aa)
链 Y
1–233(233 aa)
链 Z
1–233(233 aa)
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突变:K2E
突变:K2E
突变:K2E
突变:K2E
突变:K2E
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ADP ADENOSINE-5'-DIPHOSPHATE × 5
MG MAGNESIUM ION × 5
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ELECTRON MICROSCOPY
cryo-EM缓冲液
pH 7.5;20 mM Na-HEPES pH 7.5, 450mM NaCl, 2mM DTT, 0.5mM MgCl2, 0.2mM ATP, 0.25% Glycerol
cryo-EM玻璃化条件
冷冻剂 ETHANE;Protein BP (1.5 uM) and DNA (1.875 uM) was mixed in a 1.25 molar excess. 3uL of the sample was added to a plasma-cleaned grid at 4 degrees celsius, 100 percent humidity, blot force 4, blot time 4s, wait time 30s, total blots 1, and plunge-frozen into liquid nitrogen-cooled ethane.
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分辨率 2.84 Å
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9OA1
Ecoli DnaB helicase and Phage Lambda loader P with ADP-Mg in a 6:5 stoichiometry ratio.
提交 2025-04-18
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构建体不同
突变/修饰不同
配体/离子不同
实验环境不同
结构质量不同
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Assembly 1
蛋白异源复合物
异源复合物;蛋白 × 11
PDB 声明:undecameric
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链 V
1–233(233 aa)
链 W
1–233(233 aa)
链 X
1–233(233 aa)
链 Y
1–233(233 aa)
链 Z
1–233(233 aa)
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突变:K2E
突变:K2E
突变:K2E
突变:K2E
突变:K2E
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ADP ADENOSINE-5'-DIPHOSPHATE × 6
MG MAGNESIUM ION × 6
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ELECTRON MICROSCOPY
cryo-EM缓冲液
pH 7.5;20 mM Na-HEPES pH 7.5, 450mM NaCl, 2mM DTT, 0.5mM MgCl2, 0.2mM ATP, 0.25% Glycerol
cryo-EM玻璃化条件
冷冻剂 ETHANE;Protein BP (1.5 uM) and DNA (1.875 uM) was mixed in a 1.25 molar excess. 3uL of the sample was added to a plasma-cleaned grid at 4 degrees celsius, 100 percent humidity, blot force 4, blot time 4s, wait time 30s, total blots 1, and plunge-frozen into liquid nitrogen-cooled ethane.
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分辨率 2.66 Å
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9OA2
Ecoli DnaB helicase and Phage Lambda loader P with ADP-Mg in a 6:6 stoichiometry ratio.
提交 2025-04-18
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构建体不同
突变/修饰不同
聚集状态不同
配体/离子不同
实验环境不同
结构质量不同
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Assembly 1
蛋白异源复合物
异源复合物;蛋白 × 12
PDB 声明:dodecameric
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链 U
1–233(233 aa)
链 V
1–233(233 aa)
链 W
1–233(233 aa)
链 X
1–233(233 aa)
链 Y
1–233(233 aa)
链 Z
1–233(233 aa)
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突变:K2E
突变:K2E
突变:K2E
突变:K2E
突变:K2E
突变:K2E
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ADP ADENOSINE-5'-DIPHOSPHATE × 6
MG MAGNESIUM ION × 6
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ELECTRON MICROSCOPY
cryo-EM缓冲液
pH 7.5;20 mM Na-HEPES pH 7.5, 450mM NaCl, 2mM DTT, 0.5mM MgCl2, 0.2mM ATP, 0.25% Glycerol
cryo-EM玻璃化条件
冷冻剂 ETHANE;Protein BP (1.5 uM), ssDNA (1.875 uM), and LO-156-299-NHis (2.25 uM) was mixed at 1.25 and 1.5 molar excess, respectively. 3uL of the sample was added to a plasma-cleaned grid at 4 degrees celsius, 100 percent humidity, blot force 4, blot time 4s, wait time 30s, total blots 1, and plunge-frozen into liquid nitrogen-cooled ethane.
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分辨率 3.85 Å
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