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Open data
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Basic information
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Title | Structure of substrate bound DRG1 (AFG2) | |||||||||
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![]() | Ribosome biogenesis / AAA-ATPases / substrate recognition / single particle cryo-EM / CHAPERONE | |||||||||
Function / homology | ![]() protein hexamerization / non-chaperonin molecular chaperone ATPase / preribosome, large subunit precursor / ribosomal large subunit biogenesis / response to xenobiotic stimulus / ATP hydrolysis activity / ATP binding / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
![]() | Prattes M / Grishkovskaya I | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Visualizing maturation factor extraction from the nascent ribosome by the AAA-ATPase Drg1. Authors: Michael Prattes / Irina Grishkovskaya / Victor-Valentin Hodirnau / Christina Hetzmannseder / Gertrude Zisser / Carolin Sailer / Vasileios Kargas / Mathias Loibl / Magdalena Gerhalter / Lisa ...Authors: Michael Prattes / Irina Grishkovskaya / Victor-Valentin Hodirnau / Christina Hetzmannseder / Gertrude Zisser / Carolin Sailer / Vasileios Kargas / Mathias Loibl / Magdalena Gerhalter / Lisa Kofler / Alan J Warren / Florian Stengel / David Haselbach / Helmut Bergler / ![]() ![]() ![]() Abstract: The AAA-ATPase Drg1 is a key factor in eukaryotic ribosome biogenesis that initiates cytoplasmic maturation of the large ribosomal subunit. Drg1 releases the shuttling maturation factor Rlp24 from ...The AAA-ATPase Drg1 is a key factor in eukaryotic ribosome biogenesis that initiates cytoplasmic maturation of the large ribosomal subunit. Drg1 releases the shuttling maturation factor Rlp24 from pre-60S particles shortly after nuclear export, a strict requirement for downstream maturation. The molecular mechanism of release remained elusive. Here, we report a series of cryo-EM structures that captured the extraction of Rlp24 from pre-60S particles by Saccharomyces cerevisiae Drg1. These structures reveal that Arx1 and the eukaryote-specific rRNA expansion segment ES27 form a joint docking platform that positions Drg1 for efficient extraction of Rlp24 from the pre-ribosome. The tips of the Drg1 N domains thereby guide the Rlp24 C terminus into the central pore of the Drg1 hexamer, enabling extraction by a hand-over-hand translocation mechanism. Our results uncover substrate recognition and processing by Drg1 step by step and provide a comprehensive mechanistic picture of the conserved modus operandi of AAA-ATPases. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 54.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 14.1 KB 14.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.7 KB | Display | ![]() |
Images | ![]() | 76.7 KB | ||
Filedesc metadata | ![]() | 6.1 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7z11MC ![]() 7z34C 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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Related items in Molecule of the Month |
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Map
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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:
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-Supplemental data
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Sample components
-Entire : AFG2 hexamer
Entire | Name: AFG2 hexamer |
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Components |
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-Supramolecule #1: AFG2 hexamer
Supramolecule | Name: AFG2 hexamer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: ATPase family gene 2 protein
Macromolecule | Name: ATPase family gene 2 protein / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO / EC number: non-chaperonin molecular chaperone ATPase |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 84.850719 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MAPKSSSSGS KKKSSASSNS ADAKASKFKL PAEFITRPHP SKDHGKETCT AYIHPNVLSS LEINPGSFCT VGKIGENGIL VIARAGDEE VHPVNVITLS TTIRSVGNLI LGDRLELKKA QVQPPYATKV TVGSLQGYNI LECMEEKVIQ KLLDDSGVIM P GMIFQNLK ...String: MAPKSSSSGS KKKSSASSNS ADAKASKFKL PAEFITRPHP SKDHGKETCT AYIHPNVLSS LEINPGSFCT VGKIGENGIL VIARAGDEE VHPVNVITLS TTIRSVGNLI LGDRLELKKA QVQPPYATKV TVGSLQGYNI LECMEEKVIQ KLLDDSGVIM P GMIFQNLK TKAGDESIDV VITDASDDSL PDVSQLDLNM DDMYGGLDNL FYLSPPFIFR KGSTHITFSK ETQANRKYNL PE PLSYAAV GGLDKEIESL KSAIEIPLHQ PTLFSSFGVS PPRGILLHGP PGTGKTMLLR VVANTSNAHV LTINGPSIVS KYL GETEAA LRDIFNEARK YQPSIIFIDE IDSIAPNRAN DDSGEVESRV VATLLTLMDG MGAAGKVVVI AATNRPNSVD PALR RPGRF DQEVEIGIPD VDARFDILTK QFSRMSSDRH VLDSEAIKYI ASKTHGYVGA DLTALCRESV MKTIQRGLGT DANID KFSL KVTLKDVESA MVDIRPSAMR EIFLEMPKVY WSDIGGQEEL KTKMKEMIQL PLEASETFAR LGISAPKGVL LYGPPG CSK TLTAKALATE SGINFLAVKG PEIFNKYVGE SERAIREIFR KARSAAPSII FFDEIDALSP DRDGSSTSAA NHVLTSL LN EIDGVEELKG VVIVAATNRP DEIDAALLRP GRLDRHIYVG PPDVNARLEI LKKCTKKFNT EESGVDLHEL ADRTEGYS G AEVVLLCQEA GLAAIMEDLD VAKVELRHFE KAFKGIARGI TPEMLSYYEE FALRSGSSS UniProtKB: ATPase family gene 2 protein |
-Macromolecule #2: peptide substrate
Macromolecule | Name: peptide substrate / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 1.720111 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK) |
-Macromolecule #3: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
Macromolecule | Name: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / type: ligand / ID: 3 / Number of copies: 11 / Formula: AGS |
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Molecular weight | Theoretical: 523.247 Da |
Chemical component information | ![]() ChemComp-AGS: |
-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: 7.6 |
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Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: AB INITIO MODEL / Target criteria: correlation coefficient |
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Output model | ![]() PDB-7z11: |