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Yorodumi- EMDB-44333: Cryo-EM structure of human dynactin complex bound to Chlamydia ef... -
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| Title | Cryo-EM structure of human dynactin complex bound to Chlamydia effector Dre1 | |||||||||
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Keywords | Human dynactin / Chlamydia effector / host-pathogen interaction / MOTOR PROTEIN | |||||||||
| Function / homology | Function and homology informationretrograde axonal transport of mitochondrion / dynactin complex / F-actin capping protein complex / WASH complex / positive regulation of norepinephrine uptake / Regulation of CDH1 Function / Formation of the polybromo-BAF (pBAF) complex / Formation of the non-canonical BAF (ncBAF) complex / Formation of the canonical BAF (cBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex ...retrograde axonal transport of mitochondrion / dynactin complex / F-actin capping protein complex / WASH complex / positive regulation of norepinephrine uptake / Regulation of CDH1 Function / Formation of the polybromo-BAF (pBAF) complex / Formation of the non-canonical BAF (ncBAF) complex / Formation of the canonical BAF (cBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex / Formation of neuronal progenitor and neuronal BAF (npBAF and nBAF) / sperm head-tail coupling apparatus / bBAF complex / cellular response to cytochalasin B / npBAF complex / nBAF complex / brahma complex / regulation of transepithelial transport / cell junction assembly / morphogenesis of a polarized epithelium / Formation of annular gap junctions / Formation of the dystrophin-glycoprotein complex (DGC) / structural constituent of postsynaptic actin cytoskeleton / barbed-end actin filament capping / GBAF complex / Gap junction degradation / Folding of actin by CCT/TriC / melanosome transport / regulation of G0 to G1 transition / Cell-extracellular matrix interactions / protein localization to adherens junction / actin polymerization or depolymerization / dense body / Tat protein binding / postsynaptic actin cytoskeleton / coronary vasculature development / Prefoldin mediated transfer of substrate to CCT/TriC / RHOD GTPase cycle / RSC-type complex / regulation of double-strand break repair / regulation of nucleotide-excision repair / regulation of cell morphogenesis / protein localization to centrosome / Adherens junctions interactions / dynein complex / RHOF GTPase cycle / COPI-independent Golgi-to-ER retrograde traffic / adherens junction assembly / apical protein localization / Sensory processing of sound by inner hair cells of the cochlea / Sensory processing of sound by outer hair cells of the cochlea / Interaction between L1 and Ankyrins / tight junction / microtubule associated complex / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / lamellipodium assembly / cytoplasmic dynein complex / ventricular septum development / aorta development / positive regulation of T cell differentiation / mitotic metaphase chromosome alignment / spectrin binding / apical junction complex / positive regulation of double-strand break repair / maintenance of blood-brain barrier / regulation of norepinephrine uptake / nitric-oxide synthase binding / transporter regulator activity / cortical cytoskeleton / positive regulation of stem cell population maintenance / establishment or maintenance of cell polarity / NuA4 histone acetyltransferase complex / Recycling pathway of L1 / dynein complex binding / Regulation of MITF-M-dependent genes involved in pigmentation / brush border / Advanced glycosylation endproduct receptor signaling / regulation of G1/S transition of mitotic cell cycle / EPH-ephrin mediated repulsion of cells / negative regulation of cell differentiation / kinesin binding / RHO GTPases Activate WASPs and WAVEs / regulation of synaptic vesicle endocytosis / positive regulation of myoblast differentiation / RHO GTPases activate IQGAPs / regulation of protein localization to plasma membrane / positive regulation of double-strand break repair via homologous recombination / COPI-mediated anterograde transport / stress fiber / vesicle-mediated transport / EPHB-mediated forward signaling / axon cytoplasm / cytoskeleton organization / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / substantia nigra development Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.47 Å | |||||||||
Authors | Pawar KI / Verba KA | |||||||||
| Funding support | 1 items
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Citation | Journal: Cell Rep / Year: 2025Title: The Chlamydia effector Dre1 binds dynactin to reposition host organelles during infection. Authors: Jessica Sherry / Komal Ishwar Pawar / Lee Dolat / Erin Smith / I-Chang Chang / Khavong Pha / Robyn Kaake / Danielle L Swaney / Clara Herrera / Eleanor McMahon / Robert J Bastidas / Jeffrey R ...Authors: Jessica Sherry / Komal Ishwar Pawar / Lee Dolat / Erin Smith / I-Chang Chang / Khavong Pha / Robyn Kaake / Danielle L Swaney / Clara Herrera / Eleanor McMahon / Robert J Bastidas / Jeffrey R Johnson / Raphael H Valdivia / Nevan J Krogan / Cherilyn A Elwell / Kliment Verba / Joanne N Engel / ![]() Abstract: The obligate intracellular pathogen Chlamydia trachomatis replicates in a specialized membrane-bound compartment where it repositions host organelles during infection to acquire nutrients and evade ...The obligate intracellular pathogen Chlamydia trachomatis replicates in a specialized membrane-bound compartment where it repositions host organelles during infection to acquire nutrients and evade host surveillance. We describe a bacterial effector, Dre1, that binds specifically to dynactin associated with host microtubule organizing centers without globally impeding dynactin function. Dre1 is required to reposition the centrosome, mitotic spindle, Golgi apparatus, and primary cilia around the inclusion and contributes to pathogen fitness in cell-based and mouse models of infection. We utilized Dre1 to affinity purify the megadalton dynactin protein complex and determined the first cryoelectron microscopy (cryo-EM) structure of human dynactin. Our results suggest that Dre1 binds to the pointed end of dynactin and uncovers the first bacterial effector that modulates dynactin function. Our work highlights how a pathogen employs a single effector to evoke targeted, large-scale changes in host cell organization that facilitate pathogen growth without inhibiting host viability. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_44333.map.gz | 2.2 GB | EMDB map data format | |
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| Header (meta data) | emd-44333-v30.xml emd-44333.xml | 24.5 KB 24.5 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_44333_fsc.xml | 28.7 KB | Display | FSC data file |
| Images | emd_44333.png | 41.5 KB | ||
| Filedesc metadata | emd-44333.cif.gz | 7.6 KB | ||
| Others | emd_44333_half_map_1.map.gz emd_44333_half_map_2.map.gz | 535.8 MB 535.9 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-44333 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-44333 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9b85MC ![]() 9b7jC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_44333.map.gz / Format: CCP4 / Size: 2.4 GB / 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: 0.835 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #1
| File | emd_44333_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #2
| File | emd_44333_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Human dynactin complex bound to Chlamydia effector Dre1
+Supramolecule #1: Human dynactin complex bound to Chlamydia effector Dre1
+Macromolecule #1: Alpha-centractin
+Macromolecule #2: Actin, cytoplasmic 1
+Macromolecule #3: Actin-related protein 10
+Macromolecule #4: Dynactin subunit 4
+Macromolecule #5: Dynactin subunit 5
+Macromolecule #6: Dynactin subunit 6
+Macromolecule #7: F-actin-capping protein subunit alpha-1
+Macromolecule #8: F-actin-capping protein subunit beta
+Macromolecule #9: Dynactin subunit 2
+Macromolecule #10: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #11: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
+Macromolecule #12: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | 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: GATAN K3 (6k x 4k) / Average electron dose: 57.7 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Keywords
Homo sapiens (human)
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Processing
FIELD EMISSION GUN

