|Entry||Database: PDB / ID: 5u3c|
|Title||CryoEM structure of the CTP synthase filament at 4.6 Angstrom resolution|
|Descriptor||CTP synthase (E.C.22.214.171.124)|
|Keywords||PROTEIN FIBRIL / LIGASE / nucleotide metabolism / metabolic filament|
|Specimen source||Escherichia coli / bacteria / エシェリキア・コリ, 大腸菌 /|
|Method||Electron microscopy (4.6 Å resolution / Filament / Helical)|
|Authors||Kollman, J.M. / Lynch, E.M.|
|Citation||Nat. Struct. Mol. Biol., 2017, 24, 507-514|
Nat. Struct. Mol. Biol., 2017, 24, 507-514 Yorodumi Papers
SummaryFull reportAbout validation report
|Date||Deposition: Dec 1, 2016 / Release: Apr 26, 2017|
Downloads & links
A: CTP synthase
B: CTP synthase
C: CTP synthase
D: CTP synthase
A: CTP synthasex 7
B: CTP synthase
C: CTP synthase
D: CTP synthase
Mass: 60446.980 Da / Num. of mol.: 4
Source: (gene. exp.) Escherichia coli / bacteria / エシェリキア・コリ, 大腸菌 /
References: UniProt: B7MLA1, EC: 126.96.36.199
|Experiment||Method: ELECTRON MICROSCOPY|
|EM experiment||Aggregation state: FILAMENT / Reconstruction method: HELICAL|
|Component||Name: CTP synthase filament / Type: COMPLEX|
Details: CTP synthase was incubated in the presence of substrates, and filaments form as the product CTP builds up in the reaction.
Entity ID: 1 / Source: RECOMBINANT
|Source (natural)||Organism: Escherichia coli|
|Source (recombinant)||Organism: Escherichia coli / Plasmid: pET22|
|Buffer solution||pH: 7.8|
|Specimen||Conc.: 0.85 mg/ml / Details: E. coli CTP synthase bound to CTP and ADP / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES|
|Vitrification||Cryogen name: ETHANE|
-Electron microscopy imaging
Model: Tecnai Polara / Image courtesy: FEI Company
|Microscopy||Microscope model: FEI POLARA 300|
|Electron gun||Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER|
|Electron lens||Mode: BRIGHT FIELD|
|Image recording||Electron dose: 34 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)|
|CTF correction||Type: PHASE FLIPPING ONLY|
|Helical symmerty||Angular rotation/subunit: 48.5 deg. / Axial rise/subunit: 81.6 Å / Axial symmetry: C1|
|3D reconstruction||Resolution: 4.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number of particles: 8622 / Symmetry type: HELICAL|
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Three pioneers of this field were awarded Nobel Prize in Chemistry 2017
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External links: The 2017 Nobel Prize in Chemistry - Press Release
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