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Open data
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Basic information
| Entry | Database: PDB / ID: 9erd | |||||||||
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| Title | Human SLFN11 S753D monomer | |||||||||
Components | Schlafen family member 11 | |||||||||
Keywords | HYDROLASE / phosphomimetic / ATP binding / monomeric | |||||||||
| Function / homology | Function and homology informationreplication fork arrest / negative regulation of G1/S transition of mitotic cell cycle / negative regulation of DNA replication / site of DNA damage / immune system process / helicase activity / endonuclease activity / defense response to virus / Hydrolases; Acting on ester bonds / tRNA binding ...replication fork arrest / negative regulation of G1/S transition of mitotic cell cycle / negative regulation of DNA replication / site of DNA damage / immune system process / helicase activity / endonuclease activity / defense response to virus / Hydrolases; Acting on ester bonds / tRNA binding / chromatin remodeling / DNA damage response / ATP hydrolysis activity / DNA binding / nucleoplasm / ATP binding / nucleus / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.72 Å | |||||||||
Authors | Kugler, M. / Metzner, F.J. / Lammens, K. | |||||||||
| Funding support | Germany, European Union, 2items
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Citation | Journal: Nat Commun / Year: 2024Title: Phosphorylation-mediated conformational change regulates human SLFN11. Authors: Michael Kugler / Felix J Metzner / Gregor Witte / Karl-Peter Hopfner / Katja Lammens / ![]() Abstract: Human Schlafen 11 (SLFN11) is sensitizing cells to DNA damaging agents by irreversibly blocking stalled replication forks, making it a potential predictive biomarker in chemotherapy. Furthermore, ...Human Schlafen 11 (SLFN11) is sensitizing cells to DNA damaging agents by irreversibly blocking stalled replication forks, making it a potential predictive biomarker in chemotherapy. Furthermore, SLFN11 acts as a pattern recognition receptor for single-stranded DNA (ssDNA) and functions as an antiviral restriction factor, targeting translation in a codon-usage-dependent manner through its endoribonuclease activity. However, the regulation of the various SLFN11 functions and enzymatic activities remains enigmatic. Here, we present cryo-electron microscopy (cryo-EM) structures of SLFN11 bound to tRNA-Leu and tRNA-Met that give insights into tRNA binding and cleavage, as well as its regulation by phosphorylation at S219 and T230. SLFN11 phosphomimetic mutant S753D adopts a monomeric conformation, shows ATP binding, but loses its ability to bind ssDNA and shows reduced ribonuclease activity. Thus, the phosphorylation site S753 serves as a conformational switch, regulating SLFN11 dimerization, as well as ATP and ssDNA binding, while S219 and T230 regulate tRNA recognition and nuclease activity. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9erd.cif.gz | 161.7 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9erd.ent.gz | 122.2 KB | Display | PDB format |
| PDBx/mmJSON format | 9erd.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9erd_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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| Full document | 9erd_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | 9erd_validation.xml.gz | 38.4 KB | Display | |
| Data in CIF | 9erd_validation.cif.gz | 56 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/er/9erd ftp://data.pdbj.org/pub/pdb/validation_reports/er/9erd | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 19912MC ![]() 9ereC ![]() 9erfC ![]() 9gmwC ![]() 9gmxC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
| #1: Protein | Mass: 106235.922 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SLFN11 / Production host: Trichoplusia ni (cabbage looper)References: UniProt: Q7Z7L1, Hydrolases; Acting on acid anhydrides | ||||||||
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| #2: Chemical | | #3: Chemical | ChemComp-ATP / | #4: Chemical | ChemComp-ZN / | Has ligand of interest | N | Has protein modification | N | |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: SLFN11 S753D monomer / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Trichoplusia ni (cabbage looper) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2900 nm / Nominal defocus min: 1100 nm |
| Image recording | Electron dose: 40.2 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| EM software | Name: PHENIX / Version: 1.20.1_4487: / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.72 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 239084 / Symmetry type: POINT | ||||||||||||||||||||||||
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About Yorodumi




Homo sapiens (human)
Germany, European Union, 2items
Citation








PDBj
Trichoplusia ni (cabbage looper)



FIELD EMISSION GUN