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- PDB-4zbv: Structural studies on a non-toxic homologue of type II RIPs from ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4zbv | |||||||||
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Title | Structural studies on a non-toxic homologue of type II RIPs from Momordica charantia (bitter gourd) in complex with benzyl T-antigen | |||||||||
![]() | (rRNA N-glycosidase) x 2 | |||||||||
![]() | HYDROLASE / beta-trefoil / Type II RIPs / Galactose specific lectin | |||||||||
Function / homology | ![]() rRNA N-glycosylase / rRNA N-glycosylase activity / defense response / toxin activity / negative regulation of translation Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ![]() ![]() ![]() ![]() | |||||||||
![]() | Chandran, T. / Sharma, A. / Vijayan, M. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural studies on a non-toxic homologue of type II RIPs from bitter gourd: Molecular basis of non-toxicity, conformational selection and glycan structure. Authors: Chandran, T. / Sharma, A. / Vijayan, M. #1: Journal: Acta Crystallogr. F Biol. Crystallogr. / Year: 2010 Title: Crystallization and preliminary X-ray studies of a galactose-specific lectin from the seeds of bitter gourd (Momordica charantia). Authors: Sharma, A. / Pohlentz, G. / Bobbili, K.B. / Jeyaprakash, A.A. / Chandran, T. / Mormann, M. / Swamy, M.J. / Vijayan, M. #2: ![]() Title: The sequence and structure of snake gourd (Trichosanthes anguina) seed lectin, a three-chain nontoxic homologue of type II RIPs Authors: Sharma, A. / Pohlentz, G. / Bobbili, K.B. / Jeyaprakash, A.A. / Chandran, T. / Mormann, M. / Swamy, M.J. / Vijayan, M. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 125.5 KB | Display | ![]() |
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PDB format | ![]() | 94.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 23.6 KB | Display | |
Data in CIF | ![]() | 34 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4z8sSC ![]() 4z9wC ![]() 4za3C ![]() 4zfuC ![]() 4zfwC ![]() 4zfyC ![]() 4zgrC ![]() 4zlbC C: citing same article ( 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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1 |
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Unit cell |
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Details | The symmetry related halves are covalently linked through a disulphide bridge. Therefore, the whole molecule is formally a monomer. |
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Components
-Protein , 2 types, 2 molecules AB
#1: Protein | Mass: 27642.234 Da / Num. of mol.: 1 / Fragment: UNP RESIDUES 24-270 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#2: Protein | Mass: 29017.416 Da / Num. of mol.: 1 / Fragment: UNP RESIDUES 287-547 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Sugars , 6 types, 7 molecules ![](data/chem/img/NAG.gif)
![](data/chem/img/BMA.gif)
![](data/chem/img/GAL.gif)
![](data/chem/img/A2G.gif)
![](data/chem/img/BMA.gif)
![](data/chem/img/GAL.gif)
![](data/chem/img/A2G.gif)
#3: Polysaccharide | alpha-L-fucopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source | ||||||
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#4: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source | ||||||
#5: Sugar | #7: Sugar | ChemComp-BMA / | #10: Sugar | ChemComp-GAL / | #11: Sugar | ChemComp-A2G / | |
-Non-polymers , 5 types, 307 molecules ![](data/chem/img/PO4.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/PGE.gif)
![](data/chem/img/MBN.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/PGE.gif)
![](data/chem/img/MBN.gif)
![](data/chem/img/HOH.gif)
#6: Chemical | ChemComp-PO4 / |
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#8: Chemical | ChemComp-EDO / |
#9: Chemical | ChemComp-PGE / |
#12: Chemical | ChemComp-MBN / |
#13: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.38 Å3/Da / Density % sol: 63.6 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.3 Details: 0.1 M HEPES, 25% w/v PEG 10000, No-cryo protectant used |
-Data collection
Diffraction | Mean temperature: 100 K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: MARMOSAIC 225 mm CCD / Detector: CCD / Date: Apr 18, 2014 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Monochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.95 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Redundancy: 8.9 % / Number: 499074 / Rsym value: 0.279 / D res high: 2 Å / D res low: 94.874 Å / Num. obs: 56031 / % possible obs: 100 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Diffraction reflection shell |
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Reflection | Resolution: 2→94.874 Å / Num. obs: 56031 / % possible obs: 100 % / Redundancy: 8.9 % / Biso Wilson estimate: 31.8 Å2 / Rmerge(I) obs: 0.279 / Net I/σ(I): 6.6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell | Resolution: 2→2.11 Å / Redundancy: 8.9 % / Rmerge(I) obs: 1.246 / Mean I/σ(I) obs: 0.5 / % possible all: 100 |
-Phasing
Phasing | Method: ![]() |
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Processing
Software |
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Refinement | Method to determine structure: ![]() Starting model: 4Z8S Resolution: 2→32.62 Å / SU B: 6.676 / SU ML: 0.165 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.166 / ESU R Free: 0.156 Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES
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Displacement parameters | Biso mean: 28.65 Å2
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Refinement step | Cycle: LAST / Resolution: 2→32.62 Å
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