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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) | |||||||||
![]() | mouse RAG1/2 NFC complex | |||||||||
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![]() | V(D)J recombination / DNA Transposition / RAG / SCID / RECOMBINATION / RECOMBINATION-DNA complex | |||||||||
Function / homology | ![]() non-sequence-specific DNA binding, bending / mature B cell differentiation involved in immune response / B cell homeostatic proliferation / negative regulation of T cell differentiation in thymus / DN2 thymocyte differentiation / DNA geometric change / pre-B cell allelic exclusion / positive regulation of organ growth / bubble DNA binding / regulation of behavioral fear response ...non-sequence-specific DNA binding, bending / mature B cell differentiation involved in immune response / B cell homeostatic proliferation / negative regulation of T cell differentiation in thymus / DN2 thymocyte differentiation / DNA geometric change / pre-B cell allelic exclusion / positive regulation of organ growth / bubble DNA binding / regulation of behavioral fear response / V(D)J recombination / negative regulation of T cell apoptotic process / phosphatidylinositol-3,4-bisphosphate binding / histone H3K4me3 reader activity / negative regulation of thymocyte apoptotic process / phosphatidylinositol-3,5-bisphosphate binding / supercoiled DNA binding / DNA binding, bending / regulation of T cell differentiation / positive regulation of T cell differentiation / organ growth / T cell lineage commitment / B cell lineage commitment / endoplasmic reticulum-Golgi intermediate compartment / phosphatidylinositol-3,4,5-trisphosphate binding / T cell homeostasis / T cell differentiation / four-way junction DNA binding / protein autoubiquitination / phosphatidylinositol-4,5-bisphosphate binding / phosphatidylinositol binding / B cell differentiation / thymus development / RING-type E3 ubiquitin transferase / visual learning / autophagy / chemotaxis / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / T cell differentiation in thymus / chromosome / chromatin organization / endonuclease activity / histone binding / DNA recombination / adaptive immune response / sequence-specific DNA binding / 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 / DNA binding / extracellular region / zinc ion binding / nucleoplasm / metal ion binding / identical protein binding / nucleus / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.29 Å | |||||||||
![]() | Chen X / Cui Y / Zhou ZH / Yang W / Gellert M | |||||||||
Funding support | ![]()
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![]() | ![]() 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 |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 78.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 22.7 KB 22.7 KB | Display Display | ![]() |
Images | ![]() | 59.5 KB | ||
Filedesc metadata | ![]() | 7.9 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 532.6 KB | Display | ![]() |
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Full document | ![]() | 532.2 KB | Display | |
Data in XML | ![]() | 6.2 KB | Display | |
Data in CIF | ![]() | 7.1 KB | Display | |
Arichive directory | ![]() ![]() | 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 | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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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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![]() | 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: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |