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Open data
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Basic information
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Title | SLFN11 dimer bound to tRNA-Met-CAT | |||||||||
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![]() | tRNA / endoribonuclease activity / dimeric / HYDROLASE | |||||||||
Function / homology | ![]() 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 ...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 | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.64 Å | |||||||||
![]() | Kugler M / Metzner FJ / Lammens K | |||||||||
Funding support | ![]()
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![]() | ![]() Title: 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. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 229.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 18.5 KB 18.5 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.1 KB | Display | ![]() |
Images | ![]() | 162.5 KB | ||
Masks | ![]() | 244.1 MB | ![]() | |
Filedesc metadata | ![]() | 6.3 KB | ||
Others | ![]() ![]() ![]() | 4.6 MB 226.9 MB 226.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9erfMC ![]() 9erdC ![]() 9ereC ![]() 9gmwC ![]() 9gmxC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.727 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Additional map: cryoSPARC DeepEMhance map
File | emd_19914_additional_1.map | ||||||||||||
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Annotation | cryoSPARC DeepEMhance map | ||||||||||||
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-Half map: #2
File | emd_19914_half_map_1.map | ||||||||||||
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-Half map: #1
File | emd_19914_half_map_2.map | ||||||||||||
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Sample components
-Entire : SLFN11 bound to tRNA-Met
Entire | Name: SLFN11 bound to tRNA-Met |
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Components |
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-Supramolecule #1: SLFN11 bound to tRNA-Met
Supramolecule | Name: SLFN11 bound to tRNA-Met / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Schlafen family member 11
Macromolecule | Name: Schlafen family member 11 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: Hydrolases; Acting on acid anhydrides |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 106.207914 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MADYKDDDDK GTDYKDDDDK LEVLFQGPME ANQCPLVVEP SYPDLVINVG EVTLGEENRK KLQKIQRDQE KERVMRAACA LLNSGGGVI RMAKKVEHPV EMGLDLEQSL RELIQSSDLQ AFFETKQQGR CFYIFVKSWS SGPFPEDRSV KPRLCSLSSS L YRRSETSV ...String: MADYKDDDDK GTDYKDDDDK LEVLFQGPME ANQCPLVVEP SYPDLVINVG EVTLGEENRK KLQKIQRDQE KERVMRAACA LLNSGGGVI RMAKKVEHPV EMGLDLEQSL RELIQSSDLQ AFFETKQQGR CFYIFVKSWS SGPFPEDRSV KPRLCSLSSS L YRRSETSV RSMDSREAFC FLKTKRKPKI LEEGPFHKIH KGVYQELPNS DPADPNSDPA DLIFQKDYLE YGEILPFPES QL VEFKQFS TKHFQEYVKR TIPEYVPAFA NTGGGYLFIG VDDKSREVLG CAKENVDPDS LRRKIEQAIY KLPCVHFCQP QRP ITFTLK IVNVLKRGEL YGYACMIRVN PFCCAVFSEA PNSWIVEDKY VCSLTTEKWV GMMTDTDPDL LQLSEDFECQ LSLS SGPPL SRPVYSKKGL EHKKELQQLL FSVPPGYLRY TPESLWRDLI SEHRGLEELI NKQMQPFFRG ILIFSRSWAV DLNLQ EKPG VICDALLIAQ NSTPILYTIL REQDAEGQDY CTRTAFTLKQ KLVNMGGYTG KVCVRAKVLC LSPESSAEAL EAAVSP MDY PASYSLAGTQ HMEALLQSLV IVLLGFRSLL SDQLGCEVLN LLTAQQYEIF SRSLRKNREL FVHGLPGSGK TIMAMKI ME KIRNVFHCEA HRILYVCENQ PLRNFISDRN ICRAETRKTF LRENFEHIQH IVIDEAQNFR TEDGDWYGKA KSITRRAK G GPGILWIFLD YFQTSHLDCS GLPPLSDQYP REELTRIVRN ADPIAKYLQK EMQVIRSNPS FNIPTGCLEV FPEAEWSQG VQGTLRIKKY LTVEQIMTCV ADTCRRFFDR GYSPKDVAVL VSTAKEVEHY KYELLKAMRK KRVVQLSDAC DMLGDHIVLD SVRRFSGLE RSIVFGIHPR TADPAILPNV LICLASRAKQ HLYIFPWGGH UniProtKB: Schlafen family member 11 |
-Macromolecule #2: RNA (65-MER)
Macromolecule | Name: RNA (65-MER) / type: rna / ID: 2 / Number of copies: 1 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 21.088666 KDa |
Sequence | String: AGCAGAGUGG CGCAGCGGAA GCGUGCUGGG CCCAUAACCC AGAGGUCGAU GGAUCGAAAC CAUCC GENBANK: GENBANK: NG_066782.1 |
-Macromolecule #3: RNA (5'-R(P*UP*CP*UP*GP*CP*UP*AP*CP*CP*A)-3')
Macromolecule | Name: RNA (5'-R(P*UP*CP*UP*GP*CP*UP*AP*CP*CP*A)-3') / type: rna / ID: 3 / Number of copies: 1 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 3.097885 KDa |
Sequence | String: UCUGCUACCA |
-Macromolecule #4: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 4 / Number of copies: 2 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #5: MANGANESE (II) ION
Macromolecule | Name: MANGANESE (II) ION / type: ligand / ID: 5 / Number of copies: 3 / Formula: MN |
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Molecular weight | Theoretical: 54.938 Da |
-Macromolecule #6: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 6 / Number of copies: 3 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-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: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.6 µm / Nominal defocus min: 0.5 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |