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Open data
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Basic information
Entry | Database: PDB / ID: 1mpm | |||||||||
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Title | MALTOPORIN MALTOSE COMPLEX | |||||||||
![]() | MALTOPORIN | |||||||||
![]() | MEMBRANE PROTEIN / SUGAR TRANSPORT / SPECIFIC PORIN / BETA BARREL | |||||||||
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: Crystal structures of various maltooligosaccharides bound to maltoporin reveal a specific sugar translocation pathway. Authors: Dutzler, R. / Wang, Y.F. / Rizkallah, P.J. / Rosenbusch, J.P. / Schirmer, T. #1: ![]() 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 | ![]() | 262.3 KB | Display | ![]() |
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PDB format | ![]() | 217.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related 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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Details | THE ASYMMETRIC UNIT CONTAINS THREE MONOMERS A, B, AND C. CHAINS B AND C OF THE ENTRY HAVE BEEN GENERATED BY THE PDB TO PROVIDE THE OTHER TWO SUBUNITS OF THE MOLECULAR THREE-FOLD TRIMER. |
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Components
#1: Protein | Mass: 47425.785 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #2: Polysaccharide | alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose / beta-maltose #3: Chemical | #4: Water | ChemComp-HOH / | Nonpolymer details | MALTOSE CONSISTS OF TWO ALPHA-1-4 LINKED GLUCOSYL RESIDUES. THE GLUCOSYL RESIDUES OF THE TWO ...MALTOSE CONSISTS OF TWO ALPHA-1-4 LINKED GLUCOSYL RESIDUES. THE GLUCOSYL RESIDUES OF THE TWO MALTOSE MOLECULES ARE RESIDUES 431 - 432 AND 441 - 442 RESPECTIVE | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | 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: 277 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: MARRESEARCH / Detector: IMAGE PLATE / Date: Mar 9, 1995 |
Radiation | Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.96 Å / Relative weight: 1 |
Reflection | Resolution: 2.6→20 Å / Num. obs: 81651 / % possible obs: 89.2 % / Observed criterion σ(I): 4 / Redundancy: 3.6 % / Rmerge(I) obs: 0.091 |
Reflection shell | *PLUS Highest resolution: 2.6 Å / Lowest resolution: 2.7 Å / % possible obs: 90.9 % / Redundancy: 3.1 % / Rmerge(I) obs: 0.345 |
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Processing
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Refinement | Resolution: 2.6→8 Å / σ(F): 0
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Displacement parameters | Biso mean: 34.3 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.6→8 Å
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Refine LS restraints |
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Software | *PLUS Name: ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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