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- PDB-1gzl: Crystal structure of C14linkmid/IQN17: a cross-linked inhibitor o... -
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Basic information
Entry | Database: PDB / ID: 1gzl | ||||||
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Title | Crystal structure of C14linkmid/IQN17: a cross-linked inhibitor of HIV-1 entry bound to the gp41 hydrophobic pocket | ||||||
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![]() | GLYCOPROTEIN / HIV ENTRY / INHIBITOR / CROSS-LINK / GP41 / COILED COIL | ||||||
Function / homology | ![]() FCERI mediated MAPK activation / Synthesis and processing of ENV and VPU / protein localization to nuclear periphery / Activation of the AP-1 family of transcription factors / response to amino acid starvation / negative regulation of ribosomal protein gene transcription by RNA polymerase II / positive regulation of cellular response to amino acid starvation / symbiont-mediated evasion of host immune response / mediator complex binding / positive regulation of establishment of T cell polarity ...FCERI mediated MAPK activation / Synthesis and processing of ENV and VPU / protein localization to nuclear periphery / Activation of the AP-1 family of transcription factors / response to amino acid starvation / negative regulation of ribosomal protein gene transcription by RNA polymerase II / positive regulation of cellular response to amino acid starvation / symbiont-mediated evasion of host immune response / mediator complex binding / positive regulation of establishment of T cell polarity / Oxidative Stress Induced Senescence / Alpha-defensins / Dectin-2 family / TFIID-class transcription factor complex binding / amino acid biosynthetic process / positive regulation of RNA polymerase II transcription preinitiation complex assembly / positive regulation of transcription initiation by RNA polymerase II / Binding and entry of HIV virion / cellular response to nutrient levels / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / cellular response to amino acid starvation / host cell endosome membrane / actin filament organization / Assembly Of The HIV Virion / Budding and maturation of HIV virion / RNA polymerase II transcription regulator complex / DNA-binding transcription activator activity, RNA polymerase II-specific / clathrin-dependent endocytosis of virus by host cell / transcription regulator complex / RNA polymerase II-specific DNA-binding transcription factor binding / sequence-specific DNA binding / DNA-binding transcription factor activity, RNA polymerase II-specific / viral protein processing / intracellular signal transduction / RNA polymerase II cis-regulatory region sequence-specific DNA binding / symbiont entry into host cell / DNA-binding transcription factor activity / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / chromatin binding / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / identical protein binding / nucleus / membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Sia, S.K. / Carr, P.A. / Cochran, A.G. / Malashkevich, V.M. / Kim, P.S. | ||||||
![]() | ![]() Title: Short Constrained Peptides that Inhibit HIV-1 Entry Authors: Sia, S.K. / Carr, P.A. / Cochran, A.G. / Malashkevich, V.M. / Kim, P.S. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 40.2 KB | Display | ![]() |
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PDB format | ![]() | 28.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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2 | ![]()
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Unit cell |
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Components on special symmetry positions |
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Details | AND CHAINS B AND D). APPLYING CRYSTAL SYMMETRY GENERATES TWO TRIMERS OF HETERODIMERS (HEXAMERS). |
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Components
#1: Protein/peptide | Mass: 5468.566 Da / Num. of mol.: 2 Fragment: GP41 HYDROPHOBIC POCKET, RESIDUES 565-581, GCN4, RESIDUES 249-276 Source method: obtained synthetically / Details: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED Source: (synth.) ![]() ![]() ![]() ![]() References: UniProt: P03069, UniProt: P04578 #2: Protein/peptide | Mass: 1670.710 Da / Num. of mol.: 2 / Fragment: RESIDUES 628-639 / Mutation: YES / Source method: obtained synthetically / Details: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED / Source: (synth.) ![]() ![]() #3: Chemical | #4: Chemical | #5: Water | ChemComp-HOH / | Compound details | ENGINEERED | Has protein modification | Y | Sequence details | IN CHAINS C AND D, MET 629 AND ASN 636 ARE MUTATED TO GLUTAMIC ACID. A DIAMINOPENTANE GROUP LINKS ...IN CHAINS C AND D, MET 629 AND ASN 636 ARE MUTATED TO GLUTAMIC ACID. A DIAMINOPEN | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.46 Å3/Da / Density % sol: 49.6 % | ||||||||||||||||||||||||||||||
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Crystal grow | pH: 8.6 / Details: 16% ISOPROPANOL, 0.1 M TRIS, PH 8.6, 1 M (NH4)2SO4 | ||||||||||||||||||||||||||||||
Crystal grow | *PLUS 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 CCD / Detector: CCD / Date: Jun 19, 2000 |
Radiation | Monochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.0093 Å / Relative weight: 1 |
Reflection | Resolution: 1.8→20 Å / Num. obs: 59821 / % possible obs: 91.9 % / Observed criterion σ(I): 0 / Redundancy: 5 % / Biso Wilson estimate: 26.9 Å2 / Rsym value: 0.044 / Net I/σ(I): 13.6 |
Reflection shell | Resolution: 1.8→1.86 Å / Redundancy: 2.1 % / Rmerge(I) obs: 0.187 / Mean I/σ(I) obs: 7.2 / % possible all: 69.5 |
Reflection | *PLUS Highest resolution: 1.86 Å / Num. obs: 11190 / % possible obs: 94.3 % / Num. measured all: 59821 / Rmerge(I) obs: 0.044 |
Reflection shell | *PLUS % possible obs: 80.2 % / Rmerge(I) obs: 0.15 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: UNBOUND IQN17 AND A MODEL OF C14LINKMID BOUND TO THE HYDROPHOBIC POCKET Resolution: 1.8→19.58 Å / Rfactor Rfree error: 0.009 / Data cutoff high absF: 505253.07 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 Details: FINAL REFINEMENT IS AFTER DETWINNING DATA. 529 REFLECTIONS WERE REJECTED BY CNS AFTER MEROHEDRAL DETWINNING. THE THREE CHAINS OF THE TRIMER ARE RELATED BY CRYSTALLOGRAPHIC SYMMETRY. TO ...Details: FINAL REFINEMENT IS AFTER DETWINNING DATA. 529 REFLECTIONS WERE REJECTED BY CNS AFTER MEROHEDRAL DETWINNING. THE THREE CHAINS OF THE TRIMER ARE RELATED BY CRYSTALLOGRAPHIC SYMMETRY. TO GENERATE THE TRIMER, APPLY SYMMETRY TRANSFORMATIONS. THE FINAL MODEL CONSISTS OF ALL RESIDUES EXCEPT FOR THE TWO N-TERMINAL RESIDUES OF C14LINKMID, WHICH ARE DISORDERED.
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 97.565 Å2 / ksol: 0.428224 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 36 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 1.8→19.58 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.8→1.91 Å / Rfactor Rfree error: 0.034 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Highest resolution: 1.86 Å / Lowest resolution: 20 Å / Num. reflection obs: 10090 / Num. reflection Rfree: 687 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Rfactor Rfree: 0.271 / Rfactor Rwork: 0.297 |