+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-19812 | |||||||||
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Title | Oligomeric structure of SynDLP in presence of GTP | |||||||||
Map data | ||||||||||
Sample |
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Keywords | BDLP / cyanobacteria / membrane remodeling / GTPase / LIPID BINDING PROTEIN | |||||||||
Function / homology | Mitofusin family / Dynamin, N-terminal / Dynamin family / GTPase activity / P-loop containing nucleoside triphosphate hydrolase / Slr0869 protein Function and homology information | |||||||||
Biological species | Synechocystis sp. PCC 6803 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||
Authors | Junglas B / Gewehr L / Schoennenbeck P / Schneider D / Sachse C | |||||||||
Funding support | European Union, 1 items
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Citation | Journal: Cell Rep / Year: 2024 Title: Structural basis for GTPase activity and conformational changes of the bacterial dynamin-like protein SynDLP. Authors: Benedikt Junglas / Lucas Gewehr / Lara Mernberger / Philipp Schönnenbeck / Ruven Jilly / Nadja Hellmann / Dirk Schneider / Carsten Sachse / Abstract: SynDLP, a dynamin-like protein (DLP) encoded in the cyanobacterium Synechocystis sp. PCC 6803, has recently been identified to be structurally highly similar to eukaryotic dynamins. To elucidate ...SynDLP, a dynamin-like protein (DLP) encoded in the cyanobacterium Synechocystis sp. PCC 6803, has recently been identified to be structurally highly similar to eukaryotic dynamins. To elucidate structural changes during guanosine triphosphate (GTP) hydrolysis, we solved the cryoelectron microscopy (cryo-EM) structures of oligomeric full-length SynDLP after addition of guanosine diphosphate (GDP) at 4.1 Å and GTP at 3.6-Å resolution as well as a GMPPNP-bound dimer structure of a minimal G-domain construct of SynDLP at 3.8-Å resolution. In comparison with what has been seen in the previously resolved apo structure, we found that the G-domain is tilted upward relative to the stalk upon GTP hydrolysis and that the G-domain dimerizes via an additional extended dimerization domain not present in canonical G-domains. When incubated with lipid vesicles, we observed formation of irregular tubular SynDLP assemblies that interact with negatively charged lipids. Here, we provide the structural framework of a series of different functional SynDLP assembly states during GTP turnover. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_19812.map.gz | 171.6 MB | EMDB map data format | |
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Header (meta data) | emd-19812-v30.xml emd-19812.xml | 14.2 KB 14.2 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_19812_fsc.xml | 16.9 KB | Display | FSC data file |
Images | emd_19812.png | 67.9 KB | ||
Filedesc metadata | emd-19812.cif.gz | 5.5 KB | ||
Others | emd_19812_half_map_1.map.gz emd_19812_half_map_2.map.gz | 322.1 MB 322.1 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-19812 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-19812 | HTTPS FTP |
-Validation report
Summary document | emd_19812_validation.pdf.gz | 1 MB | Display | EMDB validaton report |
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Full document | emd_19812_full_validation.pdf.gz | 1 MB | Display | |
Data in XML | emd_19812_validation.xml.gz | 24.2 KB | Display | |
Data in CIF | emd_19812_validation.cif.gz | 31.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-19812 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-19812 | HTTPS FTP |
-Related structure data
Related structure data | 9em7MC 9em8C 9em9C 15695 M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_19812.map.gz / Format: CCP4 / Size: 347.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.869 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Sample components
-Entire : filamentous homo-oligomer of SynDLP in presence of GTP
Entire | Name: filamentous homo-oligomer of SynDLP in presence of GTP |
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Components |
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-Supramolecule #1: filamentous homo-oligomer of SynDLP in presence of GTP
Supramolecule | Name: filamentous homo-oligomer of SynDLP in presence of GTP type: cell / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Synechocystis sp. PCC 6803 (bacteria) |
-Macromolecule #1: Slr0869 protein
Macromolecule | Name: Slr0869 protein / type: protein_or_peptide / ID: 1 / Number of copies: 8 / Enantiomer: LEVO |
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Source (natural) | Organism: Synechocystis sp. PCC 6803 (bacteria) / Strain: PCC 6803 / Kazusa |
Molecular weight | Theoretical: 93.705398 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MSKIAPQCQN LREQVNQLIE LLRQEPTLRS QQDTSIVETA LGKALSPRFE IVFAGAFSAG KSMLINALLE RELLYSAEGH ATGTECHIE YANANEERVV LTFLSEAEIR QQALILAKYL NVNVGDLNIN QPEAVKVVSQ YCQKIIAEEG GENKSERAKQ A NALHLLLI ...String: MSKIAPQCQN LREQVNQLIE LLRQEPTLRS QQDTSIVETA LGKALSPRFE IVFAGAFSAG KSMLINALLE RELLYSAEGH ATGTECHIE YANANEERVV LTFLSEAEIR QQALILAKYL NVNVGDLNIN QPEAVKVVSQ YCQKIIAEEG GENKSERAKQ A NALHLLLI GFEQNRERIN TVQNSTYSMD QLNFSSLAEA AGYARRGANS AVLKRLDYFC NHSLLKDGNV LVDLPGIDAP VK EDAERAY RKIESPDTSA VICVLKPAAA GDMSAEETQL LERISKNHGI RDRVFYVFNR IDDTWYNTQL RQRLEGLIQS QFR DNSRVY KTSGLLGFYG SQVKQTNSST RFGLDSIFAT TIKGFDGEEE TPQFVSEFNN YCANSGKLLS TAFRVSVNGY ETSN ENYVR ILSEWGIPLV DQLIHDSGIE SFRSGIGLYL AEEKYPELFA TLANDLQPLC IALRQFYLEN YRQLDSQPRE IAAMK AQEL TLLNQEMQNL GIEFKKYMSA QINDVVIGND REFDQDFTKL KARMVARLDE LLKTFSVMNA YKRATESHPR NSTAPF IAV LVEALYYLAN ELEDAFIEAI HELVKNFFQR LGDRLRKVDC YHQVYRLVGN DGGIEQLLRR AEEDITKALV NEARTEC DR YVRESPRFYD EGTFSIYQFR QTLQQTSQGY DAQAIVEAEP AIKELLKLDF EPKVFNTVRK NFRQTVNNTL KTHLLPMA E EQAQIILEQY DVARKYREQT LEQDAEEKIA RNSRLQSEIK QKIDLYQTSI VSINECLKAM QIFEQLPVIT ESDITKQAE IVADADFVEI VELEHHHHHH UniProtKB: Slr0869 protein |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 44.5 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.5 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |