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Open data
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Basic information
| Entry | Database: PDB / ID: 1qow | |||||||||
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| Title | Mersacidin from Bacillus | |||||||||
Components | MERSACIDIN | |||||||||
Keywords | ANTIBIOTIC / LANTIBIOTIC / METHICILLIN RESISTANCE / THIOESTER / TYPE B LANTIBIOTIC / LANTHIONINE | |||||||||
| Function / homology | Type 2 lantibiotic, leader peptide domain / killing of cells of another organism / defense response to bacterium / signaling receptor binding / Mersacidin / METHANOL / Lantibiotic mersacidin Function and homology information | |||||||||
| Biological species | ![]() | |||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / HALF-BAKED / Resolution: 1.06 Å | |||||||||
Authors | Schneider, T.R. / Kaercher, J. / Sheldrick, G.M. | |||||||||
Citation | Journal: Acta Crystallogr.,Sect.D / Year: 2000Title: Ab initio structure determination of the lantibiotic mersacidin. Authors: Schneider, T.R. / Karcher, J. / Pohl, E. / Lubini, P. / Sheldrick, G.M. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 1qow.cif.gz | 54 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb1qow.ent.gz | 42.6 KB | Display | PDB format |
| PDBx/mmJSON format | 1qow.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 1qow_validation.pdf.gz | 461 KB | Display | wwPDB validaton report |
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| Full document | 1qow_full_validation.pdf.gz | 462.6 KB | Display | |
| Data in XML | 1qow_validation.xml.gz | 7.8 KB | Display | |
| Data in CIF | 1qow_validation.cif.gz | 10 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/qo/1qow ftp://data.pdbj.org/pub/pdb/validation_reports/qo/1qow | HTTPS FTP |
-Related structure data
| Related structure data | |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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| Unit cell |
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Components
| #1: Protein/peptide | ![]() Details: MERSACIDIN IS A TETRACYCLIC PEPTIDE. POST TRANSLATIONAL MATURATION OF LANTIBIOTICS INVOLVES THE ENZYMIC CONVERSION OF THR, AND SER INTO DEHYDRATED AA AND THE FORMATION OF THIOETHER BONDS ...Details: MERSACIDIN IS A TETRACYCLIC PEPTIDE. POST TRANSLATIONAL MATURATION OF LANTIBIOTICS INVOLVES THE ENZYMIC CONVERSION OF THR, AND SER INTO DEHYDRATED AA AND THE FORMATION OF THIOETHER BONDS WITH CYSTEINE. THE CARBOXY-TERMINAL BETA-METHYLLANTHIONINE UNDERGOES DECARBOXYLATION. THIOETHER BONDS WITH CYSTEINE RESULT IN FOUR RINGS. THIS IS FOLLOWED BY MEMBRANE TRANSLOCATION AND CLEAVAGE OF THE MODIFIED PRECURSOR. Source: (natural) ![]() #2: Chemical | ChemComp-MOH / #3: Water | ChemComp-HOH / | Compound details | MERSACIDIN IS A GLOBULAR TYPE B LANTIBIOTIC. THE LANTIBIOTICS ARE CHARACTERIZED BY LANTHIONINE ...MERSACIDIN | |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 1.73 Å3/Da / Density % sol: 28.84 % | |||||||||||||||
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| Crystal grow | Temperature: 294 K / Method: evaporation / pH: 7 Details: LYOPHILIZED MERSACIDIN WAS DISSOLVED TO SATURATION IN METHANOL. CRYSTALS GREW AT ROOM TEMPERATURE BY SLOW EVAPORATION OF METHANOL FROM A 1:1 MIXTURE OF THE SATURATED SOLUTION WITH BENZENE ...Details: LYOPHILIZED MERSACIDIN WAS DISSOLVED TO SATURATION IN METHANOL. CRYSTALS GREW AT ROOM TEMPERATURE BY SLOW EVAPORATION OF METHANOL FROM A 1:1 MIXTURE OF THE SATURATED SOLUTION WITH BENZENE AND REACHED A MAXIMUM SIZE OF 0.3 X 0.3 X 0.3 MM IN 10 DAYS., pH 7.00 | |||||||||||||||
| Crystal grow | *PLUS Method: slow evaporation | |||||||||||||||
| Components of the solutions | *PLUS
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-Data collection
| Diffraction | Mean temperature: 100 K |
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| Diffraction source | Source: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: BW7B / Wavelength: 0.865 |
| Detector | Type: MARRESEARCH / Detector: IMAGE PLATE / Date: Oct 15, 1994 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.865 Å / Relative weight: 1 |
| Reflection | Resolution: 1.06→39.9 Å / Num. obs: 33469 / % possible obs: 100 % / Redundancy: 4.9 % / Rmerge(I) obs: 0.049 / Net I/σ(I): 14.9 |
| Reflection shell | Resolution: 1.06→1.08 Å / Redundancy: 2.9 % / Rmerge(I) obs: 0.364 / Mean I/σ(I) obs: 3 / % possible all: 99.6 |
| Reflection | *PLUS Num. all: 33485 / Num. measured all: 164063 |
| Reflection shell | *PLUS Mean I/σ(I) obs: 3.4 |
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Processing
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| Refinement | Method to determine structure: HALF-BAKED / Resolution: 1.06→40 Å / Num. parameters: 7438 / Num. restraintsaints: 10782 / Cross valid method: FREE R-VALUE / σ(F): 0 StereochEM target val spec case: SIMILARITY RESTRAINTS FOR NON-STANDARD RESIDUES AS IMPLEMENTED IN SHELXL97 Stereochemistry target values: ENGH AND HUBER Details: MEROHEDRAL TWINNING: THE CRYSTAL WAS MEROHEDRALLY TWINNED. THE EFFECT OF MEROHEDRAL WAS TAKEN INTO ACCOUNT EMPLOYING THE METHOD OF PRATT ET AL., J.CHEM.SOC.(A)(1971)2146-2151 AND JAMESON ET ...Details: MEROHEDRAL TWINNING: THE CRYSTAL WAS MEROHEDRALLY TWINNED. THE EFFECT OF MEROHEDRAL WAS TAKEN INTO ACCOUNT EMPLOYING THE METHOD OF PRATT ET AL., J.CHEM.SOC.(A)(1971)2146-2151 AND JAMESON ET AL., ACTA CRYST.B54 (1982)443-449 AS IMPLEMENTED IN SHELXL-97 USING THE TWIN MATRIX: (0 1 0 1 0 0 0 0 -1). THE SIX MOLECULES IN THE ASYMMETRIC UNIT ARE ARRANGED WITH APPROXIMATE 32 (D3) POINT GROUP SYMMETRY AND CAN BE DESCRIBED AS A DIMER OF TRIMERS. THE TWO FOLD AXIS RUNS ALONG THE SHORT DIAGONAL OF THE A*B* PLANE.
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| Solvent computation | Solvent model: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-2 | |||||||||||||||||||||||||||||||||
| Refine analyze | Num. disordered residues: 0 / Occupancy sum hydrogen: 719 / Occupancy sum non hydrogen: 826 | |||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 1.06→40 Å
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| Refine LS restraints |
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| Software | *PLUS Name: SHELXL-97 / Classification: refinement | |||||||||||||||||||||||||||||||||
| Refinement | *PLUS σ(F): 4 / Rfactor obs: 0.134 / Rfactor Rwork: 0.1414 | |||||||||||||||||||||||||||||||||
| Solvent computation | *PLUS | |||||||||||||||||||||||||||||||||
| Displacement parameters | *PLUS | |||||||||||||||||||||||||||||||||
| Refine LS restraints | *PLUS Type: s_plane_restr / Dev ideal: 0.027 |
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