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- PDB-7f6f: Crystal structure of metal-citrate-binding protein (MctA) of ABC ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7f6f | ||||||
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Title | Crystal structure of metal-citrate-binding protein (MctA) of ABC transporter endogenously bound to Mg2+-citrate complex (Form II) | ||||||
![]() | Iron ABC transporter, periplasmic iron-binding protein | ||||||
![]() | TRANSPORT PROTEIN / Substrate-binding protein / metal ion / secondary transporter / symporter | ||||||
Function / homology | Bacterial extracellular solute-binding protein / Bacterial extracellular solute-binding protein / outer membrane-bounded periplasmic space / metal ion binding / CITRIC ACID / CARBON DIOXIDE / DI(HYDROXYETHYL)ETHER / S-1,2-PROPANEDIOL / Iron ABC transporter, periplasmic iron-binding protein![]() | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Kanaujia, S.P. / Mandal, S.K. / Gogoi, P. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural and thermodynamic insights into a novel Mg 2+ -citrate-binding protein from the ABC transporter superfamily. Authors: Mandal, S.K. / Kanaujia, S.P. #1: ![]() Title: Structural and thermodynamic insights into a novel Mg2+-citrate-binding protein from the ABC transporter superfamily Authors: Mandal, S.K. / Kanaujia, S.P. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 283.4 KB | Display | ![]() |
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PDB format | ![]() | 228 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 7f6eSC ![]() 7f6kC ![]() 7f6nC ![]() 7f6oC ![]() 7f6pC ![]() 7f6qC ![]() 7f6rC ![]() 7f6sC ![]() 7f6tC ![]() 7f6uC S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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2 | ![]()
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Ens-ID: 1 / Beg auth comp-ID: SER / Beg label comp-ID: SER / End auth comp-ID: VAL / End label comp-ID: VAL / Auth seq-ID: 3 - 337 / Label seq-ID: 5 - 339
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Components
-Protein , 1 types, 2 molecules AB
#1: Protein | Mass: 38183.410 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 27634 / DSM 579 / HB8 / Gene: TTHB177 / Plasmid: pET22b / Production host: ![]() ![]() |
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-Non-polymers , 7 types, 330 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/CIT.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/PGO.gif)
![](data/chem/img/PEG.gif)
![](data/chem/img/CO2.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/CIT.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/PGO.gif)
![](data/chem/img/PEG.gif)
![](data/chem/img/CO2.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | #3: Chemical | #4: Chemical | ChemComp-EDO / #5: Chemical | ChemComp-PGO / | #6: Chemical | #7: Chemical | ChemComp-CO2 / | #8: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.15 Å3/Da / Density % sol: 42.91 % / Description: Orthorhombic |
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Crystal grow | Temperature: 293 K / Method: microbatch / Details: 0.2 M ammonium fluoride, 20% PEG 3350 |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | |||||||||||||||||||||||||||
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Diffraction source | Source: ![]() | |||||||||||||||||||||||||||
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Feb 14, 2017 / Details: VariMax HF | |||||||||||||||||||||||||||
Radiation | Monochromator: Ni Filter / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 | |||||||||||||||||||||||||||
Reflection | Resolution: 2.1→71.93 Å / Num. obs: 38780 / % possible obs: 99.8 % / Redundancy: 5.8 % / CC1/2: 0.994 / Rmerge(I) obs: 0.12 / Rpim(I) all: 0.053 / Rrim(I) all: 0.131 / Net I/σ(I): 10.1 | |||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1 / Redundancy: 5.5 %
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-Phasing
Phasing | Method: ![]() | |||||||||
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Phasing MR | Model details: Phaser MODE: MR_AUTO
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 7F6E Resolution: 2.1→71.93 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.934 / SU B: 9.94 / SU ML: 0.131 / SU R Cruickshank DPI: 0.226 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.226 / ESU R Free: 0.182 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: U VALUES : WITH TLS ADDED HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 89.9 Å2 / Biso mean: 29.779 Å2 / Biso min: 13.45 Å2
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Refinement step | Cycle: final / Resolution: 2.1→71.93 Å
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Refine LS restraints |
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Refine LS restraints NCS | Ens-ID: 1 / Number: 11119 / Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Rms dev position: 0.08 Å / Weight position: 0.05
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LS refinement shell | Resolution: 2.1→2.16 Å / Rfactor Rfree error: 0
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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