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Open data
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Basic information
Entry | Database: PDB / ID: 1mpq | |||||||||
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Title | MALTOPORIN TREHALOSE COMPLEX | |||||||||
![]() | MALTOPORIN | |||||||||
![]() | MEMBRANE PROTEIN / SPECIFIC PORIN / BETA BARREL / SUGAR TRANSPORT | |||||||||
Function / homology | ![]() maltodextrin transmembrane transporter activity / maltose transporting porin activity / polysaccharide transport / porin activity / pore complex / carbohydrate transmembrane transporter activity / maltodextrin transmembrane transport / monoatomic ion transport / cell outer membrane / virus receptor activity / DNA damage response Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Dutzler, R. / Schirmer, T. | |||||||||
![]() | ![]() Title: Channel specificity: structural basis for sugar discrimination and differential flux rates in maltoporin. Authors: Wang, Y.F. / Dutzler, R. / Rizkallah, P.J. / Rosenbusch, J.P. / Schirmer, T. #1: ![]() Title: Crystal Structures of Various Maltooligosaccharides Bound to Maltoporin Reveal a Specific Sugar Translocation Pathway Authors: Dutzler, R. / Wang, Y.F. / Rizkallah, P. / Rosenbusch, J.P. / Schirmer, T. #2: ![]() Title: Structural Basis for Sugar Translocation Through Maltoporin Channels at 3.1 A Resolution Authors: Schirmer, T. / Keller, T.A. / Wang, Y.F. / Rosenbusch, J.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 | ![]() | 251.8 KB | Display | ![]() |
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PDB format | ![]() | 206.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 615 KB | Display | ![]() |
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Full document | ![]() | 650.9 KB | Display | |
Data in XML | ![]() | 47.5 KB | Display | |
Data in CIF | ![]() | 64.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1af6C ![]() 1malS 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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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS oper:
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Components
#1: Protein | Mass: 47425.785 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Polysaccharide | Nonpolymer details | GLC 1 OF TREHALOSE WAS DISORDERED AND THUS MODELED STEREOCHEMICALLY. A SINGLE GROUP B-FACTOR WAS ...GLC 1 OF TREHALOSE WAS DISORDERED | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 5.29 Å3/Da / Density % sol: 75 % | ||||||||||||||||||||||||||||||
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Crystal grow | pH: 7 / Details: pH 7. | ||||||||||||||||||||||||||||||
Crystal grow | *PLUS Method: unknown | ||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 293 K |
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Diffraction source | Source: ![]() |
Detector | Type: MARRESEARCH / Detector: IMAGE PLATE / Date: Apr 12, 1995 |
Radiation | Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
Reflection | Resolution: 3→20 Å / Num. obs: 59057 / % possible obs: 97.7 % / Observed criterion σ(I): 4 / Redundancy: 3.3 % / Biso Wilson estimate: 61 Å2 / Rmerge(I) obs: 0.078 |
Reflection shell | Resolution: 3→3.11 Å / Redundancy: 3 % / Rmerge(I) obs: 0.28 / Mean I/σ(I) obs: 2.5 / % possible all: 93.2 |
Reflection shell | *PLUS % possible obs: 93.2 % |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1MAL Resolution: 3→8 Å / Cross valid method: THROUGHOUT / σ(F): 0
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Displacement parameters | Biso mean: 21.1 Å2
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Refinement step | Cycle: LAST / Resolution: 3→8 Å
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Refine LS restraints |
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Refine LS restraints NCS | NCS model details: STRICT NCS CONSTRAINTS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
LS refinement shell | Resolution: 3→3.05 Å / Total num. of bins used: 20
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Xplor file |
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Software | *PLUS Name: ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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