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Open data
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Basic information
Entry | Database: PDB / ID: 6xnz | ||||||
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Title | Structure of RAG1 (R848M/E649V)-RAG2-DNA Target Capture Complex | ||||||
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![]() | RECOMBINATION / DNA Transposase | ||||||
Function / homology | ![]() mature B cell differentiation involved in immune response / DNA recombinase complex / B cell homeostatic proliferation / DN2 thymocyte differentiation / negative regulation of T cell differentiation in thymus / endodeoxyribonuclease complex / pre-B cell allelic exclusion / positive regulation of organ growth / regulation of behavioral fear response / V(D)J recombination ...mature B cell differentiation involved in immune response / DNA recombinase complex / B cell homeostatic proliferation / DN2 thymocyte differentiation / negative regulation of T cell differentiation in thymus / endodeoxyribonuclease complex / pre-B cell allelic exclusion / positive regulation of organ growth / regulation of behavioral fear response / V(D)J recombination / negative regulation of T cell apoptotic process / phosphatidylinositol-3,4-bisphosphate binding / negative regulation of thymocyte apoptotic process / phosphatidylinositol-3,5-bisphosphate binding / positive regulation of T cell differentiation / regulation of T cell differentiation / organ growth / T cell lineage commitment / B cell lineage commitment / T cell homeostasis / phosphatidylinositol-3,4,5-trisphosphate binding / T cell differentiation / protein autoubiquitination / phosphatidylinositol-4,5-bisphosphate binding / methylated histone binding / phosphatidylinositol binding / B cell differentiation / thymus development / visual learning / RING-type E3 ubiquitin transferase / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / chromatin organization / histone binding / T cell differentiation in thymus / endonuclease activity / DNA recombination / adaptive immune response / sequence-specific DNA binding / Hydrolases; Acting on ester bonds / defense response to bacterium / chromatin binding / protein homodimerization activity / zinc ion binding / nucleoplasm / identical protein binding / nucleus / metal ion binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å | ||||||
![]() | Zhang, Y. / Corbett, E. / Wu, S. / Schatz, D.G. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for the activation and suppression of transposition during evolution of the RAG recombinase. Authors: Yuhang Zhang / Elizabeth Corbett / Shenping Wu / David G Schatz / ![]() Abstract: Jawed vertebrate adaptive immunity relies on the RAG1/RAG2 (RAG) recombinase, a domesticated transposase, for assembly of antigen receptor genes. Using an integration-activated form of RAG1 with ...Jawed vertebrate adaptive immunity relies on the RAG1/RAG2 (RAG) recombinase, a domesticated transposase, for assembly of antigen receptor genes. Using an integration-activated form of RAG1 with methionine at residue 848 and cryo-electron microscopy, we determined structures that capture RAG engaged with transposon ends and U-shaped target DNA prior to integration (the target capture complex) and two forms of the RAG strand transfer complex that differ based on whether target site DNA is annealed or dynamic. Target site DNA base unstacking, flipping, and melting by RAG1 methionine 848 explain how this residue activates transposition, how RAG can stabilize sharp bends in target DNA, and why replacement of residue 848 by arginine during RAG domestication led to suppression of transposition activity. RAG2 extends a jawed vertebrate-specific loop to interact with target site DNA, and functional assays demonstrate that this loop represents another evolutionary adaptation acquired during RAG domestication to inhibit transposition. Our findings identify mechanistic principles of the final step in cut-and-paste transposition and the molecular and structural logic underlying the transformation of RAG from transposase to recombinase. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 389.2 KB | Display | ![]() |
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PDB format | ![]() | 297.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 22274MC ![]() 6xnxC ![]() 6xnyC M: map data used to model this data 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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Components
-V(D)J recombination-activating protein ... , 2 types, 4 molecules ACBD
#1: Protein | Mass: 85750.781 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: P15919, Hydrolases; Acting on ester bonds, RING-type E3 ubiquitin transferase #2: Protein | Mass: 40416.984 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-DNA chain , 6 types, 6 molecules IJxMyL
#3: DNA chain | Mass: 11368.285 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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#4: DNA chain | Mass: 11408.310 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
#5: DNA chain | Mass: 10456.710 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
#6: DNA chain | Mass: 10461.758 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
#7: DNA chain | Mass: 13837.883 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
#8: DNA chain | Mass: 13877.906 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
-Non-polymers , 1 types, 2 molecules ![](data/chem/img/ZN.gif)
#9: Chemical |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Units: KILODALTONS/NANOMETER / Experimental value: NO | ||||||||||||||||||||||||
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Source (recombinant) |
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Buffer solution | pH: 7.6 Details: 20 mM HEPES pH7.6, 0.5 mM TCEP, 5 mM MgCl2 and 150 mM KCl | ||||||||||||||||||||||||
Specimen | Conc.: 0.4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 283 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 2300 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 11 sec. / Electron dose: 72.8 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 3527 |
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Processing
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 636773 | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 22270 / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 5ZDZ Accession code: 5ZDZ / Source name: PDB / Type: experimental model |