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Open data
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Basic information
Entry | Database: PDB / ID: 5t3a | |||||||||
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Title | Maedi-Visna virus (MVV) integrase CCD-CTD (residues 60-275) | |||||||||
![]() | integrase | |||||||||
![]() | HYDROLASE / Visna virus integrase / catalytic core domain / c-terminal domain | |||||||||
Function / homology | ![]() dUTP diphosphatase / dUTP diphosphatase activity / nucleotide metabolic process / Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases / ribonuclease H / exoribonuclease H / exoribonuclease H activity / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase ...dUTP diphosphatase / dUTP diphosphatase activity / nucleotide metabolic process / Hydrolases; Acting on peptide bonds (peptidases); Aspartic endopeptidases / ribonuclease H / exoribonuclease H / exoribonuclease H activity / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency / RNA-directed DNA polymerase activity / viral capsid / RNA-DNA hybrid ribonuclease activity / Transferases; Transferring phosphorus-containing groups; Nucleotidyltransferases / DNA recombination / DNA-directed DNA polymerase / Hydrolases; Acting on ester bonds / aspartic-type endopeptidase activity / DNA-directed DNA polymerase activity / symbiont entry into host cell / proteolysis / DNA binding / zinc ion binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Cook, N.J. / Pye, V.E. / Cherepanov, P. | |||||||||
![]() | ![]() Title: A supramolecular assembly mediates lentiviral DNA integration. Authors: Allison Ballandras-Colas / Daniel P Maskell / Erik Serrao / Julia Locke / Paolo Swuec / Stefán R Jónsson / Abhay Kotecha / Nicola J Cook / Valerie E Pye / Ian A Taylor / Valgerdur ...Authors: Allison Ballandras-Colas / Daniel P Maskell / Erik Serrao / Julia Locke / Paolo Swuec / Stefán R Jónsson / Abhay Kotecha / Nicola J Cook / Valerie E Pye / Ian A Taylor / Valgerdur Andrésdóttir / Alan N Engelman / Alessandro Costa / Peter Cherepanov / ![]() ![]() ![]() Abstract: Retroviral integrase (IN) functions within the intasome nucleoprotein complex to catalyze insertion of viral DNA into cellular chromatin. Using cryo-electron microscopy, we now visualize the ...Retroviral integrase (IN) functions within the intasome nucleoprotein complex to catalyze insertion of viral DNA into cellular chromatin. Using cryo-electron microscopy, we now visualize the functional maedi-visna lentivirus intasome at 4.9 angstrom resolution. The intasome comprises a homo-hexadecamer of IN with a tetramer-of-tetramers architecture featuring eight structurally distinct types of IN protomers supporting two catalytically competent subunits. The conserved intasomal core, previously observed in simpler retroviral systems, is formed between two IN tetramers, with a pair of C-terminal domains from flanking tetramers completing the synaptic interface. Our results explain how HIV-1 IN, which self-associates into higher-order multimers, can form a functional intasome, reconcile the bulk of early HIV-1 IN biochemical and structural data, and provide a lentiviral platform for design of HIV-1 IN inhibitors. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 103.3 KB | Display | ![]() |
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PDB format | ![]() | 78.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 442.6 KB | Display | ![]() |
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Full document | ![]() | 442.7 KB | Display | |
Data in XML | ![]() | 10.4 KB | Display | |
Data in CIF | ![]() | 13.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4139C ![]() 5lljSC ![]() 5m0rC ![]() 7zppC ![]() 3hpgS 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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1 | ![]()
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Unit cell |
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Components on special symmetry positions |
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Components
#1: Protein | Mass: 25607.305 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() | ||||
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#2: Chemical | #3: Chemical | ChemComp-MES / | #4: Water | ChemComp-HOH / | |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.13 Å3/Da / Density % sol: 60.74 % |
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Crystal grow | Temperature: 291 K / Method: vapor diffusion, hanging drop / pH: 6 Details: 0.1M Mes pH6.0, 15-100mM calcium acetate and 15-21% PEG 400 |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Aug 6, 2016 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.9282 Å / Relative weight: 1 |
Reflection | Resolution: 2.5→62.42 Å / Num. obs: 10859 / % possible obs: 99.7 % / Redundancy: 9.4 % / Biso Wilson estimate: 44.1 Å2 / CC1/2: 0.99 / Rmerge(I) obs: 0.129 / Rsym value: 0.064 / Net I/σ(I): 13 |
Reflection shell | Resolution: 2.5→2.57 Å / Redundancy: 9.6 % / Rmerge(I) obs: 1.54 / Mean I/σ(I) obs: 1.7 / CC1/2: 0.81 / % possible all: 98.4 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 3HPG, 5LLJ Resolution: 2.501→62.415 Å / SU ML: 0.23 / Cross valid method: FREE R-VALUE / σ(F): 1.36 / Phase error: 26.5 Details: Data were found to be anisotropic, 2.5A in a and c directions; 3.5A in b. Data were subjected to staraniso (global phasing; ian tickle et al) after processing and it is this file the model ...Details: Data were found to be anisotropic, 2.5A in a and c directions; 3.5A in b. Data were subjected to staraniso (global phasing; ian tickle et al) after processing and it is this file the model was refined against (and is uploaded). The model was refined using phenix and coot.
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 62.4 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.501→62.415 Å
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Refine LS restraints |
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LS refinement shell |
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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