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- EMDB-42798: Magnesium transporter MgtA dimer from E. coli in 5 mM MgCl2 and 5... -
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Open data
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Basic information
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Title | Magnesium transporter MgtA dimer from E. coli in 5 mM MgCl2 and 5 mM ATPyS | |||||||||||||||||||||
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![]() | magnesium / transport / membrane protein / dimer / oligomer / cryo-EM / P-type ATPase / ion translocation | |||||||||||||||||||||
Function / homology | ![]() P-type Mg2+ transporter / P-type magnesium transporter activity / magnesium ion transmembrane transport / P-type ion transporter activity / cellular response to magnesium ion / ATPase-coupled monoatomic cation transmembrane transporter activity / intracellular membrane-bounded organelle / ATP hydrolysis activity / ATP binding / metal ion binding / plasma membrane Similarity search - Function | |||||||||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.87 Å | |||||||||||||||||||||
![]() | Zeinert R / Zhou F / Cavalcanti Franco PH / Zoeller J / Lessen H / Iyer A / Langer JD / Sodt AJ / Storz G / Matthies D | |||||||||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Magnesium Transporter MgtA revealed as a Dimeric P-type ATPase Authors: Zeinert R / Zhou F / Cavalcanti Franco PH / Zoeller J / Lessen H / Iyer A / Langer JD / Sodt AJ / Storz G / Matthies D | |||||||||||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 10.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 27.4 KB 27.4 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 12.8 KB | Display | ![]() |
Images | ![]() | 125.3 KB | ||
Masks | ![]() | 216 MB | ![]() | |
Filedesc metadata | ![]() | 7.6 KB | ||
Others | ![]() ![]() ![]() ![]() | 203.9 MB 107.2 MB 200.5 MB 200.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8uybMC ![]() 8uy7C ![]() 8uy8C ![]() 8uy9C ![]() 8uyaC ![]() 8uycC C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Additional map: #2
File | emd_42798_additional_1.map | ||||||||||||
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-Additional map: #1
File | emd_42798_additional_2.map | ||||||||||||
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Density Histograms |
-Half map: #2
File | emd_42798_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_42798_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Magnesium transporter MgtA from Escherichia coli in the dimeric f...
Entire | Name: Magnesium transporter MgtA from Escherichia coli in the dimeric form in the presence of 5 mM MgCl2 and 5 mM ATPyS |
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Components |
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-Supramolecule #1: Magnesium transporter MgtA from Escherichia coli in the dimeric f...
Supramolecule | Name: Magnesium transporter MgtA from Escherichia coli in the dimeric form in the presence of 5 mM MgCl2 and 5 mM ATPyS type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 201 KDa |
-Macromolecule #1: Magnesium-transporting ATPase, P-type 1
Macromolecule | Name: Magnesium-transporting ATPase, P-type 1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 100.393062 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MFKEIFTRLI RHLPSRLVHR DPLPGAQQTV NTVVPPSLSA HCLKMAVMPE EELWKTFDTH PEGLNQAEVE SAREQHGENK LPAQQPSPW WVHLWVCYRN PFNILLTILG AISYATEDLF AAGVIALMVA ISTLLNFIQE ARSTKAADAL KAMVSNTATV L RVINDKGE ...String: MFKEIFTRLI RHLPSRLVHR DPLPGAQQTV NTVVPPSLSA HCLKMAVMPE EELWKTFDTH PEGLNQAEVE SAREQHGENK LPAQQPSPW WVHLWVCYRN PFNILLTILG AISYATEDLF AAGVIALMVA ISTLLNFIQE ARSTKAADAL KAMVSNTATV L RVINDKGE NGWLEIPIDQ LVPGDIIKLA AGDMIPADLR ILQARDLFVA QASLTGESLP VEKAATTRQP EHSNPLECDT LC FMGTTVV SGTAQAMVIA TGANTWFGQL AGRVSEQESE PNAFQQGISR VSMLLIRFML VMAPVVLLIN GYTKGDWWEA ALF ALSVAV GLTPEMLPMI VTSTLARGAV KLSKQKVIVK HLDAIQNFGA MDILCTDKTG TLTQDKIVLE NHTDISGKTS ERVL HSAWL NSHYQTGLKN LLDTAVLEGT DEESARSLAS RWQKIDEIPF DFERRRMSVV VAENTEHHQL VCKGALQEIL NVCSQ VRHN GEIVPLDDIM LRKIKRVTDT LNRQGLRVVA VATKYLPARE GDYQRADESD LILEGYIAFL DPPKETTAPA LKALKA SGI TVKILTGDSE LVAAKVCHEV GLDAGEVVIG SDIETLSDDE LANLAQRTTL FARLTPMHKE RIVTLLKREG HVVGFMG DG INDAPALRAA DIGISVDGAV DIAREAADII LLEKSLMVLE EGVIEGRRTF ANMLKYIKMT ASSNFGNVFS VLVASAFL P FLPMLPLHLL IQNLLYDVSQ VAIPFDNVDD EQIQKPQRWN PADLGRFMIF FGPISSIFDI LTFCLMWWVF HANTPETQT LFQSGWFVVG LLSQTLIVHM IRTRRVPFIQ SCASWPLMIM TVIVMIVGIA LPFSPLASYL QLQALPLSYF PWLVAILAGY MTLTQLVKG FYSRRYGWQH HHHHH UniProtKB: Magnesium-transporting ATPase, P-type 1 |
-Macromolecule #2: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 2 / Number of copies: 6 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #3: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
Macromolecule | Name: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / type: ligand / ID: 3 / Number of copies: 2 / Formula: AGS |
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Molecular weight | Theoretical: 523.247 Da |
Chemical component information | ![]() ChemComp-AGS: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2.3 mg/mL |
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Buffer | pH: 7.5 Details: 50 mM Tris/HCl, 50 mM K2SO4, 5 mM MgCl2, 0.007% glycol-diosgenin, 2 mM DTT, 5 mM ATPyS |
Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 88 % / Chamber temperature: 278 K / Instrument: LEICA EM GP |
Details | E. coli MgtA purified with a C-terminal His-tag |
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Electron microscopy
Microscope | TFS KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 2 / Number real images: 9868 / Average exposure time: 3.795 sec. / Average electron dose: 50.0 e/Å2 Details: A first dataset was collected with a dose rate of 9 A/px/s (~7.5 on the camera through the sample), exposure time 0.076 s/frame (~1 e-/A2) and total exposure time of 3.795 s per movie (~50 e- ...Details: A first dataset was collected with a dose rate of 9 A/px/s (~7.5 on the camera through the sample), exposure time 0.076 s/frame (~1 e-/A2) and total exposure time of 3.795 s per movie (~50 e-/A2), resulting in a total of 3396 movies with 50 frames each. A second dataset was collected with a dose rate of 9 A/px/s (~7.5 on the camera through the sample), exposure time 0.076 s/frame (~1 e-/A2) and total exposure time of 3.795 s per movie (~50 e-/A2), resulting in a total of 6472 movies with 50 frames each. |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 100.0 µm / Calibrated magnification: 60241 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Initial model | Chain - Source name: Other / Chain - Initial model type: experimental model / Details: our new MgtA dimer structure without nucleotides |
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Refinement | Space: REAL / Protocol: RIGID BODY FIT |
Output model | ![]() PDB-8uyb: |
-Atomic model buiding 2
Initial model | Chain - Source name: Other / Chain - Initial model type: experimental model / Details: our new MgtA dimer structure without nucleotides |
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Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
Output model | ![]() PDB-8uyb: |
-Atomic model buiding 3
Initial model | Chain - Source name: Other / Chain - Initial model type: experimental model / Details: our new MgtA dimer structure without nucleotides |
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Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
Output model | ![]() PDB-8uyb: |