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Open data
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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 informationB cell homeostatic proliferation / negative regulation of T cell differentiation in thymus / mature B cell differentiation involved in immune response / B cell lineage commitment / T cell lineage commitment / DNA recombinase complex / negative regulation of T cell apoptotic process / endodeoxyribonuclease complex / DNA geometric change / positive regulation of organ growth ...B cell homeostatic proliferation / negative regulation of T cell differentiation in thymus / mature B cell differentiation involved in immune response / B cell lineage commitment / T cell lineage commitment / DNA recombinase complex / negative regulation of T cell apoptotic process / endodeoxyribonuclease complex / DNA geometric change / positive regulation of organ growth / non-sequence-specific DNA binding, bending / pre-B cell allelic exclusion / V(D)J recombination / bubble DNA binding / negative regulation of thymocyte apoptotic process / regulation of T cell differentiation / T cell homeostasis / phosphatidylinositol-3,4-bisphosphate binding / regulation of behavioral fear response / histone H3K4me3 reader activity / DNA binding, bending / positive regulation of T cell differentiation / phosphatidylinositol-3,5-bisphosphate binding / pattern recognition receptor signaling pathway / thymus development / supercoiled DNA binding / endoplasmic reticulum-Golgi intermediate compartment / positive regulation of intracellular signal transduction / phosphatidylinositol-3,4,5-trisphosphate binding / T cell differentiation / T cell differentiation in thymus / protein autoubiquitination / B cell differentiation / four-way junction DNA binding / phosphatidylinositol-4,5-bisphosphate binding / visual learning / phosphatidylinositol binding / autophagy / RING-type E3 ubiquitin transferase / chemotaxis / adaptive immune response / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / histone binding / endonuclease activity / chromatin organization / DNA recombination / hydrolase activity / sequence-specific DNA binding / innate immune response / Hydrolases; Acting on ester bonds / defense response to bacterium / inflammatory response / endosome / chromatin remodeling / chromosome / DNA repair / chromatin binding / protein homodimerization activity / metal ion binding / zinc ion binding / nucleoplasm / extracellular region / identical protein binding / nucleus / plasma membrane Similarity search - Function | |||||||||
| Biological species | ![]() ![]() ![]() | |||||||||
| 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: 2020Title: 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. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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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 | 22.7 KB 22.7 KB | Display Display | EMDB header |
| Images | emd_20035.png | 59.5 KB | ||
| Filedesc metadata | emd-20035.cif.gz | 7.9 KB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-20035 ftp://data.pdbj.org/pub/emdb/structures/EMD-20035 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6oerMC ![]() 6oemC ![]() 6oenC ![]() 6oeoC ![]() 6oepC ![]() 6oeqC ![]() 6v0vC C: citing same article ( M: atomic model generated by this map |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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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
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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 |
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Sample preparation
| Buffer | pH: 7.4 |
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| Grid | Details: unspecified |
| Vitrification | Cryogen name: ETHANE |
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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 |
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About Yorodumi



Keywords

Authors
United States, 1 items
Citation
UCSF Chimera






























Z (Sec.)
Y (Row.)
X (Col.)





















Homo sapiens (human)
Processing
