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Yorodumi- PDB-1ltt: LACTOSE BINDING TO HEAT-LABILE ENTEROTOXIN REVEALED BY X-RAY CRYS... -
+Open data
-Basic information
Entry | Database: PDB / ID: 1ltt | |||||||||
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Title | LACTOSE BINDING TO HEAT-LABILE ENTEROTOXIN REVEALED BY X-RAY CRYSTALLOGRAPHY | |||||||||
Components |
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Keywords | TOXIN | |||||||||
Function / homology | Function and homology information toxin activity / killing of cells of another organism / extracellular space / extracellular region Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | X-RAY DIFFRACTION / Resolution: 2.3 Å | |||||||||
Authors | Sixma, T.K. / Hol, W.G.J. | |||||||||
Citation | Journal: Nature / Year: 1992 Title: Lactose binding to heat-labile enterotoxin revealed by X-ray crystallography. Authors: Sixma, T.K. / Pronk, S.E. / Kalk, K.H. / van Zanten, B.A. / Berghuis, A.M. / Hol, W.G. #1: Journal: Nature / Year: 1991 Title: Crystal Structure of a Cholera Toxin-Related Heat-Labile Enterotoxin from E. Coli Authors: Sixma, T.K. / Pronk, S.E. / Kalk, K.H. / Wartna, E.S. / Van Zanten, B.A.M. / Witholt, B. / Hol, W.G.J. #2: Journal: J.Mol.Biol. / Year: 1993 Title: Refined Structure of E. Coli Heat Labile Enterotoxin, a Close Relative of Cholera Toxin Authors: Sixma, T.K. / Van Zanten, B.A.M. / Dauter, Z. / Hol, W.G.J. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1ltt.cif.gz | 164.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1ltt.ent.gz | 133.7 KB | Display | PDB format |
PDBx/mmJSON format | 1ltt.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/lt/1ltt ftp://data.pdbj.org/pub/pdb/validation_reports/lt/1ltt | HTTPS FTP |
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-Related structure data
Similar structure data |
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-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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Atom site foot note | 1: CIS PROLINE - PRO D 93 / 2: CIS PROLINE - PRO E 93 / 3: CIS PROLINE - PRO F 93 / 4: CIS PROLINE - PRO G 93 / 5: CIS PROLINE - PRO H 93 / 6: CIS PROLINE - PRO A 178 | ||||||||||||||||||||
Noncrystallographic symmetry (NCS) | NCS oper:
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Details | ROTATION MATRICES HAVE BEEN INCLUDED FOR PARTIAL NON-CRYSTALLOGRAPHIC FIVEFOLD SYMMETRY OF THE B SUBUNITS. ROTATIONS ACT ON CARTESIAN COORDINATES, WITH THE ORIGIN AS CENTER OF ROTATION (NO TRANSLATION ALONG THE FIVEFOLD AXIS). RMS DEVIATION FOR ALL 515 ALPHA CARBONS OF THE B SUBUNIT IS 0.6 ANGSTROMS. (SUPERPOSITION OF INDIVIDUAL B SUBUNITS GIVES BETTER VALUES OF 0.20 - 0.45 ANGSTROMS). ROTATIONS IN POLAR COORDINATES: KAPPA PHI PSI RELATING 288.0 7.2 94.7 B1 TO B2 (MTRIX1) 216.0 7.2 94.7 B1 TO B3 (MTRIX2) 144.0 7.2 94.7 B1 TO B4 (MTRIX3) 72.0 7.2 94.7 B1 TO B5 (MTRIX4) THE TRANSFORMATION PRESENTED AS *MTRIX 1* BELOW WILL YIELD APPROXIMATE COORDINATES FOR CHAIN *E* WHEN APPLIED TO CHAIN *D*. THE TRANSFORMATION PRESENTED AS *MTRIX 2* BELOW WILL YIELD APPROXIMATE COORDINATES FOR CHAIN *F* WHEN APPLIED TO CHAIN *D*. THE TRANSFORMATION PRESENTED AS *MTRIX 3* BELOW WILL YIELD APPROXIMATE COORDINATES FOR CHAIN *G* WHEN APPLIED TO CHAIN *D*. THE TRANSFORMATION PRESENTED AS *MTRIX 4* BELOW WILL YIELD APPROXIMATE COORDINATES FOR CHAIN *H* WHEN APPLIED TO CHAIN *D*. |
-Components
#1: Protein | Mass: 11807.539 Da / Num. of mol.: 5 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Organ: TAIL / Production host: Escherichia coli (E. coli) / References: UniProt: P32890 #2: Protein | | Mass: 21354.600 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Organ: TAIL / Production host: Escherichia coli (E. coli) / References: UniProt: P06717 #3: Protein/peptide | | Mass: 4953.393 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Organ: TAIL / Production host: Escherichia coli (E. coli) / References: UniProt: P06717 #4: Polysaccharide | beta-D-galactopyranose-(1-4)-beta-D-glucopyranose / beta-lactose #5: Water | ChemComp-HOH / | Compound details | THIS IS THE UNNICKED AND UNREDUCED FORM OF THE TOXIN. | Sequence details | SUBUNIT NUMBERING SCHEME: SUBUNIT CHAIN PROTEIN SEQUENCE B1 D 1 - 103 B2 E 1 - 103 B3 F 1 - 103 B4 ...SUBUNIT NUMBERING SCHEME: SUBUNIT CHAIN PROTEIN SEQUENCE B1 D 1 - 103 B2 E 1 - 103 B3 F 1 - 103 B4 G 1 - 103 B5 H 1 - 103 A1 A 1 - 188 A2 C 196 - 237 GALACTOSE D 104 GLUCOSE D 105 GALACTOSE E 104 GLUCOSE E 105 GALACTOSE F 104 GLUCOSE F 105 GALACTOSE G 104 GLUCOSE G 105 GALACTOSE H 104 GLUCOSE H 105 WATER 1 - 334 | |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION |
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-Sample preparation
Crystal | Density Matthews: 2.28 Å3/Da / Density % sol: 46.03 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | *PLUS pH: 7.5 / Method: microdialysisDetails: three-layer liquid-liquid diffusion, taken from Pronk, S.E. et al (1985). J. Biol. Chem., 260, 13580-13584. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Radiation | Scattering type: x-ray |
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Radiation wavelength | Relative weight: 1 |
Reflection | *PLUS Highest resolution: 2.3 Å / % possible obs: 91 % / Observed criterion σ(F): 1 / Rmerge(I) obs: 0.064 |
-Processing
Software |
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Refinement | Resolution: 2.3→8 Å / Rfactor Rwork: 0.182 / Rfactor obs: 0.182 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.3→8 Å
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Refine LS restraints |
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Software | *PLUS Name: X-PLOR / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | *PLUS Highest resolution: 2.3 Å / Lowest resolution: 8 Å / Num. reflection obs: 5978 / Rfactor obs: 0.182 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS Type: x_angle_d / Dev ideal: 3 |