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- PDB-8c5i: Cyanide dihydratase from Bacillus pumilus C1 variant - Q86R,H305K... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8c5i | ||||||
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Title | Cyanide dihydratase from Bacillus pumilus C1 variant - Q86R,H305K,H308K,H323K | ||||||
![]() | Cyanide dihydratase | ||||||
![]() | HYDROLASE / Helical / homo-oligomeric / cyanide dihydratase | ||||||
Function / homology | ![]() nitrilase activity / detoxification of nitrogen compound / nitrile hydratase activity Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.15 Å | ||||||
![]() | Mulelu, A.E. / Reitz, J. / van Rooyen, J. / Scheffer, M. / Frangakis, A.S. / Dlamini, L.S. / Woodward, J.D. / Benedik, M.J. / Sewell, B.T. | ||||||
Funding support | ![]()
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![]() | ![]() Title: The Role of Histidine Residues in the Oligomerization of Cyanide Dihydratase from Bacillus pumilus C1 Authors: Mulelu, A.E. / Reitz, J. / van Rooyen, J. / Scheffer, M. / Frangakis, A.S. / Dlamini, L.S. / Woodward, J.D. / Benedik, M.J. / Sewell, B.T. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 2 MB | Display | ![]() |
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PDB format | ![]() | 1.7 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 16437MC ![]() 8p4iC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 37503.363 Da / Num. of mol.: 18 / Mutation: Q86R,H305K,H308K,H323K Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: helical reconstruction |
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Sample preparation
Component | Name: Active helical nitrilase homo-oligomer of cyanide dihydratase from Bacillus pumilus C1 variant (Q86R/H305K/H308K/H323K) Type: COMPLEX Details: Cyanide dihydratase from Bacillus pumilus C1 variant generated by site-directed mutagenesis. Entity ID: all / Source: RECOMBINANT | |||||||||||||||
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Molecular weight | Experimental value: NO | |||||||||||||||
Source (natural) | Organism: ![]() ![]() | |||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | |||||||||||||||
Buffer solution | pH: 5.4 / Details: 150 mM NaCl, 50 mM Tris-HCl pH 5.4 | |||||||||||||||
Buffer component |
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Specimen | Conc.: 0.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: Homogeneous protein sample. | |||||||||||||||
Specimen support | Grid material: COPPER / Grid type: Quantifoil R2/2 | |||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K Details: A 2.5 microlitre sample was applied onto a glow-discharged grid, blotted and plunged without incubation. |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 600 nm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 54 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
Image scans | Movie frames/image: 30 |
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Processing
Software | Name: PHENIX / Version: 1.20.1_4487: / Classification: refinement | |||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING ONLY | |||||||||||||||||||||||||||||||||||
Helical symmerty | Angular rotation/subunit: -77 ° / Axial rise/subunit: 16.7 Å / Axial symmetry: C2 | |||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.15 Å / Resolution method: FSC 0.5 CUT-OFF / Num. of particles: 103000 / Algorithm: FOURIER SPACE / Num. of class averages: 92000 / Symmetry type: HELICAL | |||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: AB INITIO MODEL / Space: REAL | |||||||||||||||||||||||||||||||||||
Refine LS restraints |
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