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- PDB-4qf8: Crystal Structure of the Complex of Phospholipase A2 with Spermid... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4qf8 | ||||||
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Title | Crystal Structure of the Complex of Phospholipase A2 with Spermidine at 1.65 A Resolution | ||||||
![]() | Phospholipase A2 VRV-PL-VIIIa | ||||||
![]() | HYDROLASE/HYDROLASE INHIBITOR / HYDROLASE-HYDROLASE INHIBITOR complex | ||||||
Function / homology | ![]() calcium-dependent phospholipase A2 activity / phospholipase A2 / arachidonic acid secretion / phospholipid metabolic process / lipid catabolic process / negative regulation of T cell proliferation / phospholipid binding / toxin activity / calcium ion binding / extracellular region Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Shukla, P.K. / Sinha, M. / Kaur, P. / Sharma, S. / Singh, T.P. | ||||||
![]() | ![]() Title: Structures and binding studies of the complexes of phospholipase A2 with five inhibitors Authors: Shukla, P.K. / Gautam, L. / Sinha, M. / Kaur, P. / Sharma, S. / Singh, T.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 | ![]() | 41.2 KB | Display | ![]() |
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PDB format | ![]() | 27.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 445.5 KB | Display | ![]() |
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Full document | ![]() | 446.8 KB | Display | |
Data in XML | ![]() | 9.1 KB | Display | |
Data in CIF | ![]() | 12.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4qemC ![]() 4qerC ![]() 4qf7C ![]() 4qgdC ![]() 1fb2S S: Starting model for refinement C: citing same article ( |
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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 | Mass: 13629.767 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: D0VX11, UniProt: P59071*PLUS, phospholipase A2 |
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#2: Chemical | ChemComp-SPD / |
#3: Chemical | ChemComp-SO4 / |
#4: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.31 Å3/Da / Density % sol: 46.79 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: Ammonium sulphate, PEG 4000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
-Data collection
Diffraction | Mean temperature: 77 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: MARRESEARCH / Detector: CCD / Date: Feb 26, 2014 / Details: mirror |
Radiation | Monochromator: Graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.97 Å / Relative weight: 1 |
Reflection | Resolution: 1.65→50 Å / Num. obs: 14473 / % possible obs: 96.7 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Rmerge(I) obs: 0.087 / Net I/σ(I): 19.8 |
Reflection shell | Resolution: 1.65→1.68 Å / Rmerge(I) obs: 0.463 / Mean I/σ(I) obs: 2 / % possible all: 95.6 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1FB2 Resolution: 1.65→25.78 Å / Cor.coef. Fo:Fc: 0.966 / Cor.coef. Fo:Fc free: 0.945 / SU B: 2.47 / SU ML: 0.086 / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / ESU R: 0.111 / ESU R Free: 0.115 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 32.582 Å2
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Refinement step | Cycle: LAST / Resolution: 1.65→25.78 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.654→1.68 Å / Total num. of bins used: 20
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