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Open data
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Basic information
Entry | Database: PDB / ID: 7dpa | ||||||
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Title | Cryo-EM structure of the human ELMO1-DOCK5-Rac1 complex | ||||||
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Function / homology | ![]() negative regulation of vascular associated smooth muscle contraction / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Kukimoto-Niino, M. / Katsura, K. / Kaushik, R. / Ehara, H. / Yokoyama, T. / Uchikubo-Kamo, T. / Mishima-Tsumagari, C. / Yonemochi, M. / Ikeda, M. / Hanada, K. ...Kukimoto-Niino, M. / Katsura, K. / Kaushik, R. / Ehara, H. / Yokoyama, T. / Uchikubo-Kamo, T. / Mishima-Tsumagari, C. / Yonemochi, M. / Ikeda, M. / Hanada, K. / Zhang, K.Y.J. / Shirouzu, M. | ||||||
![]() | ![]() Title: Cryo-EM structure of the human ELMO1-DOCK5-Rac1 complex. Authors: Mutsuko Kukimoto-Niino / Kazushige Katsura / Rahul Kaushik / Haruhiko Ehara / Takeshi Yokoyama / Tomomi Uchikubo-Kamo / Reiko Nakagawa / Chiemi Mishima-Tsumagari / Mayumi Yonemochi / Mariko ...Authors: Mutsuko Kukimoto-Niino / Kazushige Katsura / Rahul Kaushik / Haruhiko Ehara / Takeshi Yokoyama / Tomomi Uchikubo-Kamo / Reiko Nakagawa / Chiemi Mishima-Tsumagari / Mayumi Yonemochi / Mariko Ikeda / Kazuharu Hanada / Kam Y J Zhang / Mikako Shirouzu / ![]() Abstract: The dedicator of cytokinesis (DOCK) family of guanine nucleotide exchange factors (GEFs) promotes cell motility, phagocytosis, and cancer metastasis through activation of Rho guanosine ...The dedicator of cytokinesis (DOCK) family of guanine nucleotide exchange factors (GEFs) promotes cell motility, phagocytosis, and cancer metastasis through activation of Rho guanosine triphosphatases. Engulfment and cell motility (ELMO) proteins are binding partners of DOCK and regulate Rac activation. Here, we report the cryo-electron microscopy structure of the active ELMO1-DOCK5 complex bound to Rac1 at 3.8-Å resolution. The C-terminal region of ELMO1, including the pleckstrin homology (PH) domain, aids in the binding of the catalytic DOCK homology region 2 (DHR-2) domain of DOCK5 to Rac1 in its nucleotide-free state. A complex α-helical scaffold between ELMO1 and DOCK5 stabilizes the binding of Rac1. Mutagenesis studies revealed that the PH domain of ELMO1 enhances the GEF activity of DOCK5 through specific interactions with Rac1. The structure provides insights into how ELMO modulates the biochemical activity of DOCK and how Rac selectivity is achieved by ELMO. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 729.6 KB | Display | ![]() |
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PDB format | ![]() | 597.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.3 MB | Display | |
Data in XML | ![]() | 134.9 KB | Display | |
Data in CIF | ![]() | 200.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 30802MC 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
#1: Protein | Mass: 191492.125 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 20244.258 Da / Num. of mol.: 2 / Mutation: G15A Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() ![]() #3: Protein | ![]() Mass: 84337.719 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
Component | Name: ELMO1-DOCK5-Rac1 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
Vitrification![]() | Cryogen name: ETHANE / Humidity: 100 % |
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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![]() |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
EM software |
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CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 2145777 | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry![]() ![]() | ||||||||||||||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 149846 / Num. of class averages: 1 / Symmetry type: POINT |