+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-20037 | |||||||||
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Title | Cryo-EM structure of mouse RAG1/2 STC complex | |||||||||
Map data | structure of mouse RAG1/2 STC complex | |||||||||
Sample |
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Keywords | V(D)J recombination / DNA Transposition / RAG / SCID / RECOMBINATION / RECOMBINATION-DNA complex | |||||||||
Function / homology | Function and homology information 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 / T cell lineage commitment / organ growth / positive regulation of T cell differentiation / regulation of T cell differentiation / 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 / B cell differentiation / phosphatidylinositol binding / thymus development / RING-type E3 ubiquitin transferase / visual learning / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / chromatin organization / histone binding / T cell differentiation in thymus / endonuclease activity / DNA recombination / sequence-specific DNA binding / adaptive immune response / 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 | Mus musculus (house mouse) / Escherichia coli K-12 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Chen X / Cui Y / Zhou ZH / Yang W / Gellert M | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2020 Title: How mouse RAG recombinase avoids DNA transposition. Authors: Xuemin Chen / Yanxiang Cui / Huaibin Wang / Z Hong Zhou / Martin Gellert / Wei Yang / Abstract: The RAG1-RAG2 recombinase (RAG) cleaves DNA to initiate V(D)J recombination, but RAG also belongs to the RNH-type transposase family. To learn how RAG-catalyzed transposition is inhibited in ...The RAG1-RAG2 recombinase (RAG) cleaves DNA to initiate V(D)J recombination, but RAG also belongs to the RNH-type transposase family. To learn how RAG-catalyzed transposition is inhibited in developing lymphocytes, we determined the structure of a DNA-strand transfer complex of mouse RAG at 3.1-Å resolution. The target DNA is a T form (T for transpositional target), which contains two >80° kinks towards the minor groove, only 3 bp apart. RAG2, a late evolutionary addition in V(D)J recombination, appears to enforce the sharp kinks and additional inter-segment twisting in target DNA and thus attenuates unwanted transposition. In contrast to strand transfer complexes of genuine transposases, where severe kinks occur at the integration sites of target DNA and thus prevent the reverse reaction, the sharp kink with RAG is 1 bp away from the integration site. As a result, RAG efficiently catalyzes the disintegration reaction that restores the RSS (donor) and target DNA. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_20037.map.gz | 6 MB | EMDB map data format | |
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Header (meta data) | emd-20037-v30.xml emd-20037.xml | 18.1 KB 18.1 KB | Display Display | EMDB header |
Images | emd_20037.png | 54.7 KB | ||
Filedesc metadata | emd-20037.cif.gz | 7.1 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-20037 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20037 | HTTPS FTP |
-Validation report
Summary document | emd_20037_validation.pdf.gz | 370.2 KB | Display | EMDB validaton report |
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Full document | emd_20037_full_validation.pdf.gz | 369.8 KB | Display | |
Data in XML | emd_20037_validation.xml.gz | 6.3 KB | Display | |
Data in CIF | emd_20037_validation.cif.gz | 7.2 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20037 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20037 | HTTPS FTP |
-Related structure data
Related structure data | 6oetMC 6oesC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_20037.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | structure of mouse RAG1/2 STC complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.07 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : RAG1/2 strand transfer complex
+Supramolecule #1: RAG1/2 strand transfer complex
+Macromolecule #1: V(D)J recombination-activating protein 1
+Macromolecule #2: V(D)J recombination-activating protein 2
+Macromolecule #3: DNA (50-MER)
+Macromolecule #4: DNA (5'-D(*CP*CP*TP*GP*GP*AP*TP*CP*TP*GP*GP*CP*CP*TP*G)-3')
+Macromolecule #5: DNA (59-MER)
+Macromolecule #6: DNA (30-MER)
+Macromolecule #7: DNA (39-MER)
+Macromolecule #8: CALCIUM ION
+Macromolecule #9: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Grid | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 45.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 68085 |
Initial angle assignment | Type: NOT APPLICABLE |
Final angle assignment | Type: NOT APPLICABLE |