+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-20035 | |||||||||
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Title | Cryo-EM structure of mouse RAG1/2 NFC complex (DNA2) | |||||||||
Map data | mouse RAG1/2 NFC 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 non-sequence-specific DNA binding, bending / DNA geometric change / 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 ...non-sequence-specific DNA binding, bending / DNA geometric change / 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 / bubble DNA binding / V(D)J recombination / negative regulation of T cell apoptotic process / phosphatidylinositol-3,4-bisphosphate binding / negative regulation of thymocyte apoptotic process / supercoiled DNA binding / phosphatidylinositol-3,5-bisphosphate binding / T cell lineage commitment / DNA binding, bending / 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 / endoplasmic reticulum-Golgi intermediate compartment / T cell differentiation / protein autoubiquitination / four-way junction DNA binding / phosphatidylinositol-4,5-bisphosphate binding / methylated histone binding / B cell differentiation / phosphatidylinositol binding / thymus development / RING-type E3 ubiquitin transferase / visual learning / autophagy / ubiquitin-protein transferase activity / chemotaxis / ubiquitin protein ligase activity / chromatin organization / chromosome / histone binding / T cell differentiation in thymus / endonuclease activity / DNA recombination / sequence-specific DNA binding / adaptive immune response / Hydrolases; Acting on ester bonds / endosome / defense response to bacterium / inflammatory response / innate immune response / DNA repair / chromatin binding / regulation of transcription by RNA polymerase II / protein homodimerization activity / zinc ion binding / extracellular region / nucleoplasm / identical protein binding / nucleus / metal ion binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Mus musculus (house mouse) / Equus caballus (horse) / Escherichia coli K-12 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.29 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: Cutting antiparallel DNA strands in a single active site. Authors: Xuemin Chen / Yanxiang Cui / Robert B Best / Huaibin Wang / Z Hong Zhou / Wei Yang / Martin Gellert / Abstract: A single enzyme active site that catalyzes multiple reactions is a well-established biochemical theme, but how one nuclease site cleaves both DNA strands of a double helix has not been well ...A single enzyme active site that catalyzes multiple reactions is a well-established biochemical theme, but how one nuclease site cleaves both DNA strands of a double helix has not been well understood. In analyzing site-specific DNA cleavage by the mammalian RAG1-RAG2 recombinase, which initiates V(D)J recombination, we find that the active site is reconfigured for the two consecutive reactions and the DNA double helix adopts drastically different structures. For initial nicking of the DNA, a locally unwound and unpaired DNA duplex forms a zipper via alternating interstrand base stacking, rather than melting as generally thought. The second strand cleavage and formation of a hairpin-DNA product requires a global scissor-like movement of protein and DNA, delivering the scissile phosphate into the rearranged active site. | |||||||||
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_20035.map.gz | 78.3 MB | EMDB map data format | |
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Header (meta data) | emd-20035-v30.xml emd-20035.xml | 17.9 KB 17.9 KB | Display Display | EMDB header |
Images | emd_20035.png | 59.5 KB | ||
Filedesc metadata | emd-20035.cif.gz | 7.1 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-20035 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20035 | HTTPS FTP |
-Validation report
Summary document | emd_20035_validation.pdf.gz | 532.8 KB | Display | EMDB validaton report |
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Full document | emd_20035_full_validation.pdf.gz | 532.4 KB | Display | |
Data in XML | emd_20035_validation.xml.gz | 6.2 KB | Display | |
Data in CIF | emd_20035_validation.cif.gz | 7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20035 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20035 | HTTPS FTP |
-Related structure data
Related structure data | 6oerMC 6oemC 6oenC 6oeoC 6oepC 6oeqC 6v0vC 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_20035.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | mouse RAG1/2 NFC 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 Nick-forming complex (DNA2)
+Supramolecule #1: RAG1/2 Nick-forming complex (DNA2)
+Macromolecule #1: V(D)J recombination-activating protein 1
+Macromolecule #2: V(D)J recombination-activating protein 2
+Macromolecule #7: High mobility group protein B1
+Macromolecule #3: DNA (46-MER)
+Macromolecule #4: DNA (46-MER)
+Macromolecule #5: DNA (57-MER)
+Macromolecule #6: DNA (57-MER)
+Macromolecule #8: ZINC ION
+Macromolecule #9: CALCIUM 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: 50.0 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: 3.29 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 333280 |
Initial angle assignment | Type: NOT APPLICABLE |
Final angle assignment | Type: NOT APPLICABLE |