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- PDB-8ok9: Heterodimeric complex of Archaeoglobus fulgidus Argonaute protein... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8ok9 | |||||||||
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Title | Heterodimeric complex of Archaeoglobus fulgidus Argonaute protein Af1318 (AfAgo) with DNA and AfAgo-N protein containing N-L1-L2 domains | |||||||||
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![]() | RNA BINDING PROTEIN / Protein-nucleic acid interactions / Argonaute / pAgo / guide and target specificity | |||||||||
Function / homology | ![]() | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Manakova, E.N. / Zaremba, M. | |||||||||
Funding support | Lithuania, European Union, 2items
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![]() | ![]() Title: The missing part: the Archaeoglobus fulgidus Argonaute forms a functional heterodimer with an N-L1-L2 domain protein. Authors: Elena Manakova / Edvardas Golovinas / Reda Pocevičiūtė / Giedrius Sasnauskas / Arunas Silanskas / Danielis Rutkauskas / Marija Jankunec / Evelina Zagorskaitė / Edvinas Jurgelaitis / ...Authors: Elena Manakova / Edvardas Golovinas / Reda Pocevičiūtė / Giedrius Sasnauskas / Arunas Silanskas / Danielis Rutkauskas / Marija Jankunec / Evelina Zagorskaitė / Edvinas Jurgelaitis / Algirdas Grybauskas / Česlovas Venclovas / Mindaugas Zaremba Abstract: Argonaute (Ago) proteins are present in all three domains of life (bacteria, archaea and eukaryotes). They use small (15-30 nucleotides) oligonucleotide guides to bind complementary nucleic acid ...Argonaute (Ago) proteins are present in all three domains of life (bacteria, archaea and eukaryotes). They use small (15-30 nucleotides) oligonucleotide guides to bind complementary nucleic acid targets and are responsible for gene expression regulation, mobile genome element silencing, and defence against viruses or plasmids. According to their domain organization, Agos are divided into long and short Agos. Long Agos found in prokaryotes (long-A and long-B pAgos) and eukaryotes (eAgos) comprise four major functional domains (N, PAZ, MID and PIWI) and two structural linker domains L1 and L2. The majority (∼60%) of pAgos are short pAgos, containing only the MID and inactive PIWI domains. Here we focus on the prokaryotic Argonaute AfAgo from Archaeoglobus fulgidus DSM4304. Although phylogenetically classified as a long-B pAgo, AfAgo contains only MID and catalytically inactive PIWI domains, akin to short pAgos. We show that AfAgo forms a heterodimeric complex with a protein encoded upstream in the same operon, which is a structural equivalent of the N-L1-L2 domains of long pAgos. This complex, structurally equivalent to a long PAZ-less pAgo, outperforms standalone AfAgo in guide RNA-mediated target DNA binding. Our findings provide a missing piece to one of the first and the most studied pAgos. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 174.3 KB | Display | ![]() |
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PDB format | ![]() | 130 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 8oldC ![]() 8oljC ![]() 8pvvC ![]() 8qg0C C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
-Protein , 2 types, 2 molecules AC
#1: Protein | Mass: 50921.121 Da / Num. of mol.: 1 / Fragment: Arhaeoglobus fulgidus Argonaute protein / Mutation: N-terminal His tag Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: DSM 4304 / Gene: AF_1318 / Plasmid: pBAD / Production host: ![]() ![]() |
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#2: Protein | Mass: 30575.756 Da / Num. of mol.: 1 / Mutation: N-terminal His tag Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: DSM 8774 / Gene: AFULGI_00014290 / Plasmid: pBAD / Production host: ![]() ![]() |
-DNA chain , 1 types, 2 molecules RS
#3: DNA chain | Mass: 4578.987 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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-Non-polymers , 5 types, 216 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/ACY.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/PEG.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/ACY.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/PEG.gif)
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#4: Chemical | ChemComp-MG / | ||||||
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#5: Chemical | ChemComp-ACY / #6: Chemical | ChemComp-EDO / #7: Chemical | ChemComp-PEG / | #8: Water | ChemComp-HOH / | |
-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.9 Å3/Da / Density % sol: 68.45 % |
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Crystal grow | Temperature: 280 K / Method: vapor diffusion, sitting drop / pH: 5.5 Details: BisTris pH 5.5 0.1 M;Ammonium acetate 0.1 M; PEG10k 8%; cryo-cooling with addition of ethylene glycol to 30 % |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS PILATUS3 X 6M / Detector: PIXEL / Date: Jun 25, 2015 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.01 Å / Relative weight: 1 |
Reflection | Resolution: 2.5→144.35 Å / Num. obs: 44100 / % possible obs: 98.1 % / Redundancy: 13.3 % / Biso Wilson estimate: 64.922 Å2 / CC1/2: 0.999 / R split: 0.023 / Rmerge(I) obs: 0.054 / Rpim(I) all: 0.022 / Rrim(I) all: 0.058 / Χ2: 1.02 / Net I/av σ(I): 9.3 / Net I/σ(I): 30.2 |
Reflection shell | Resolution: 2.5→2.55 Å / Redundancy: 13.7 % / Rmerge(I) obs: 0.413 / Mean I/σ(I) obs: 6.6 / Num. unique obs: 4576 / CC1/2: 0.98 / Rpim(I) all: 0.167 / Rrim(I) all: 0.446 / Χ2: 1.01 / % possible all: 100 |
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Processing
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Refinement | Method to determine structure: ![]()
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL / Bsol: 57.56 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 60.13 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.5→64.69 Å
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Refine LS restraints |
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION
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