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- PDB-1pfb: Structural Basis for specific binding of polycomb chromodomain to... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1pfb | ||||||
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Title | Structural Basis for specific binding of polycomb chromodomain to histone H3 methylated at K27 | ||||||
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![]() | PEPTIDE BINDING PROTEIN / chromatin / histone methylation / polycomb / chromodomain | ||||||
Function / homology | ![]() negative regulation of response to gamma radiation / specification of segmental identity, abdomen / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / SUMOylation of DNA damage response and repair proteins / SUMOylation of RNA binding proteins / SUMOylation of transcription cofactors / Regulation of PTEN gene transcription / syncytial blastoderm mitotic cell cycle / polytene chromosome band / Oxidative Stress Induced Senescence ...negative regulation of response to gamma radiation / specification of segmental identity, abdomen / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / SUMOylation of DNA damage response and repair proteins / SUMOylation of RNA binding proteins / SUMOylation of transcription cofactors / Regulation of PTEN gene transcription / syncytial blastoderm mitotic cell cycle / polytene chromosome band / Oxidative Stress Induced Senescence / ventral cord development / PRC1 complex / polytene chromosome / anterior/posterior axis specification / neuron remodeling / methylated histone binding / neurogenesis / wound healing / heterochromatin formation / nucleosome / sequence-specific DNA binding / protein heterodimerization activity / negative regulation of gene expression / negative regulation of DNA-templated transcription / chromatin binding / regulation of DNA-templated transcription / chromatin / regulation of transcription by RNA polymerase II / nucleolus / negative regulation of transcription by RNA polymerase II / DNA binding / nucleus Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Min, J.R. / Zhang, Y. / Xu, R.-M. | ||||||
![]() | ![]() Title: Structural basis for specific binding of Polycomb chromodomain to histone H3 methylated at Lys 27. Authors: Min, J.R. / Zhang, Y. / Xu, R.-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 | ![]() | 25.8 KB | Display | ![]() |
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PDB format | ![]() | 19.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
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
-Protein / Protein/peptide , 2 types, 2 molecules AB
#1: Protein | Mass: 6806.826 Da / Num. of mol.: 1 / Fragment: chromodomain Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#2: Protein/peptide | Mass: 1158.414 Da / Num. of mol.: 1 / Source method: obtained synthetically Details: The peptide was chemically synthesized. It is naturally found in Strongylocentrotus purpuratus. References: UniProt: P06352 |
-Non-polymers , 4 types, 151 molecules ![](data/chem/img/CL.gif)
![](data/chem/img/BME.gif)
![](data/chem/img/ACY.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/BME.gif)
![](data/chem/img/ACY.gif)
![](data/chem/img/HOH.gif)
#3: Chemical | #4: Chemical | ChemComp-BME / | #5: Chemical | ChemComp-ACY / | #6: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.03 Å3/Da / Density % sol: 59.39 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 290 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: 30% PEG8000, 200mM ammonium sulfate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 16 ℃ / pH: 8 / Method: vapor diffusion, hanging drop | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Nov 19, 2002 |
Radiation | Monochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.1 Å / Relative weight: 1 |
Reflection | Resolution: 1.4→50 Å / Num. all: 19520 / Num. obs: 17050 / % possible obs: 86.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 |
Reflection shell | Resolution: 1.4→1.45 Å / % possible all: 42.3 |
Reflection | *PLUS Highest resolution: 1.4 Å / Num. measured all: 85538 / Rmerge(I) obs: 0.042 |
Reflection shell | *PLUS Highest resolution: 1.4 Å / % possible obs: 42.3 % / Num. unique obs: 811 / Rmerge(I) obs: 0.195 / Mean I/σ(I) obs: 4.1 |
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Processing
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Refinement | Method to determine structure: ![]()
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Refinement step | Cycle: LAST / Resolution: 1.4→27.28 Å
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Refinement | *PLUS Highest resolution: 1.4 Å / Lowest resolution: 50 Å | ||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Highest resolution: 1.4 Å / Lowest resolution: 1.46 Å / Rfactor Rfree: 0.32 / Rfactor Rwork: 0.298 |