+Open data
-Basic information
Entry | Database: PDB / ID: 8imf | ||||||
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Title | Human cGAS catalytic domain bound with baicalein | ||||||
Components | Cyclic GMP-AMP synthase | ||||||
Keywords | IMMUNE SYSTEM / cGAS / inhibitor / baicalein | ||||||
Function / homology | Function and homology information cyclic GMP-AMP synthase / 2',3'-cyclic GMP-AMP synthase activity / STING mediated induction of host immune responses / paracrine signaling / poly-ADP-D-ribose modification-dependent protein binding / cGAS/STING signaling pathway / regulation of immunoglobulin production / regulation of T cell activation / pattern recognition receptor signaling pathway / negative regulation of cGAS/STING signaling pathway ...cyclic GMP-AMP synthase / 2',3'-cyclic GMP-AMP synthase activity / STING mediated induction of host immune responses / paracrine signaling / poly-ADP-D-ribose modification-dependent protein binding / cGAS/STING signaling pathway / regulation of immunoglobulin production / regulation of T cell activation / pattern recognition receptor signaling pathway / negative regulation of cGAS/STING signaling pathway / cytoplasmic pattern recognition receptor signaling pathway / cellular response to exogenous dsRNA / cGMP-mediated signaling / positive regulation of type I interferon production / negative regulation of double-strand break repair via homologous recombination / nucleosome binding / positive regulation of defense response to virus by host / phosphatidylinositol-4,5-bisphosphate binding / activation of innate immune response / cAMP-mediated signaling / molecular condensate scaffold activity / determination of adult lifespan / positive regulation of cellular senescence / site of double-strand break / double-stranded DNA binding / defense response to virus / nuclear body / DNA repair / innate immune response / DNA damage response / chromatin binding / GTP binding / protein homodimerization activity / DNA binding / nucleoplasm / ATP binding / metal ion binding / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.4 Å | ||||||
Authors | Zhao, W.F. / Xu, Y.C. | ||||||
Funding support | 1items
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Citation | Journal: Bioorg.Chem. / Year: 2023 Title: Discovery of novel cGAS inhibitors based on natural flavonoids. Authors: Li, J. / Xiong, M. / Liu, J. / Zhang, F. / Li, M. / Zhao, W. / Xu, Y. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8imf.cif.gz | 145.2 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8imf.ent.gz | 109.2 KB | Display | PDB format |
PDBx/mmJSON format | 8imf.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/im/8imf ftp://data.pdbj.org/pub/pdb/validation_reports/im/8imf | HTTPS FTP |
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-Related structure data
Related structure data | 8imeC 8imgC C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
#1: Protein | Mass: 42759.270 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CGAS, C6orf150, MB21D1 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q8N884, cyclic GMP-AMP synthase #2: Chemical | #3: Chemical | ChemComp-3WL / | #4: Water | ChemComp-HOH / | Has ligand of interest | Y | |
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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: 2.27 Å3/Da / Density % sol: 45.9 % |
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, hanging drop / pH: 7 / Details: 18-20% V/V PEG 3350, 0.2 M AMMONIUM CITRATE |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Diffraction source | Source: SYNCHROTRON / Site: SSRF / Beamline: BL18U1 / Wavelength: 0.979 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Feb 6, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.979 Å / Relative weight: 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Resolution: 2.4→50 Å / Num. obs: 31048 / % possible obs: 99.9 % / Redundancy: 3.5 % / Rmerge(I) obs: 0.969 / Χ2: 0.076 / Net I/σ(I): 3.9 / Num. measured all: 207453 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell |
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-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.4→35.882 Å / SU ML: 0.31 / Cross valid method: THROUGHOUT / σ(F): 1.37 / Phase error: 29.08 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.4→35.882 Å
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Refine LS restraints |
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LS refinement shell |
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