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- PDB-1pz5: Structural basis of peptide-carbohydrate mimicry in an antibody c... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1pz5 | ||||||
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Title | Structural basis of peptide-carbohydrate mimicry in an antibody combining site | ||||||
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![]() | IMMUNE SYSTEM / Antibody-antigen structure / peptide-carbohydrate mimicry / vaccine design | ||||||
Function / homology | ![]() immunoglobulin complex / immunoglobulin mediated immune response / antigen binding / extracellular region / metal ion binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Vyas, N.K. / Vyas, M.N. / Chervenak, M.C. / Bundle, D.R. / Pinto, B.M. / Quiocho, F.A. | ||||||
![]() | ![]() Title: Structural basis of peptide-carbohydrate mimicry in an antibody combining site. Authors: Vyas, N.K. / Vyas, M.N. / Chervenak, M.C. / Bundle, D.R. / Pinto, B.M. / Quiocho, F.A. #1: ![]() Title: Molecular recognition of oligosaccharide epitopes by a monoclonal Fab sepcific for Shigella flexneri Y lipopolysaccharide: X-ray structures and thermodynamics. Authors: Vyas, N.K. / Vyas, M.N. / Chervenak, M.C. / Johnson, M.A. / Pinto, B.M. / Bundle, D.R. / Quiocho, F.A. #2: ![]() Title: Preliminary crystallographic analysis of a Fab specific for the O-antigen of Shigella flexneri cell surface lipopoysaccharide with and without bound saccharides Authors: Vyas, M.N. / Vyas, N.K. / Meikle, P.J. / Sinnott, B. / Pinto, B.M. / Bundle, D.R. / Quiocho, F.A. | ||||||
History |
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Remark 999 | SEQUENCE No database reference sequence was found for the proteins in this structure at the time of ...SEQUENCE No database reference sequence was found for the proteins in this structure at the time of processing. |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 108.7 KB | Display | ![]() |
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PDB format | ![]() | 81.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 378.6 KB | Display | ![]() |
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Full document | ![]() | 386.5 KB | Display | |
Data in XML | ![]() | 10.8 KB | Display | |
Data in CIF | ![]() | 19.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1m71S S: Starting model for refinement |
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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 on special symmetry positions |
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Components
#1: Antibody | Mass: 23717.350 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: Antibody | Mass: 23563.404 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#3: Protein/peptide | Mass: 976.110 Da / Num. of mol.: 1 / Source method: obtained synthetically Details: The octapeptide was synthesized as its carboxamide (Alberta peptide Institure, Edmonton, Canada) |
#4: Water | ChemComp-HOH / |
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.47 Å3/Da / Density % sol: 50.19 % |
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Crystal grow | Temperature: 277 K / Method: vapor diffusion / pH: 6.5 Details: MPD, potassium phoshphate, pH 6.5, VAPOR DIFFUSION, temperature 277.0K |
Crystal grow | *PLUS Details: Vyas, M.N., (1993) J. Mol. Biol., 231, 133. |
-Data collection
Diffraction source | Source: ![]() ![]() ![]() |
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Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Details: mirrors |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.948 Å / Relative weight: 1 |
Reflection | Resolution: 1.8→20 Å / Num. all: 42148 / Num. obs: 42148 / % possible obs: 91.7 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4 % / Biso Wilson estimate: 12.3 Å2 / Rmerge(I) obs: 0.042 / Rsym value: 0.042 / Net I/σ(I): 35.1 |
Reflection shell | Resolution: 1.8→1.86 Å / Redundancy: 3.65 % / Rmerge(I) obs: 0.12 / Mean I/σ(I) obs: 6.5 / Num. unique all: 2644 / Rsym value: 0.12 / % possible all: 58.9 |
Reflection | *PLUS Redundancy: 4.02 % / Num. measured all: 169601 |
Reflection shell | *PLUS % possible obs: 58.9 % / Num. unique obs: 2644 / Num. measured obs: 9660 / Rmerge(I) obs: 0.12 / Mean I/σ(I) obs: 2 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1M71 Resolution: 1.8→19.97 Å / Rfactor Rfree error: 0.004 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 48.9066 Å2 / ksol: 0.352158 e/Å3 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 20.6 Å2
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Refine analyze | Luzzati coordinate error free: 0.27 Å / Luzzati sigma a free: 0.16 Å | ||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.8→19.97 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.8→1.91 Å / Rfactor Rfree error: 0.012 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Highest resolution: 1.8 Å / % reflection Rfree: 10 % | ||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Highest resolution: 1.8 Å / Rfactor Rwork: 0.233 |