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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 / protein localization to centrosome / positive regulation of norepinephrine uptake / dynein complex / sperm head-tail coupling apparatus / cellular response to cytochalasin B / Formation of the embryonic stem cell BAF (esBAF) complex ...retrograde axonal transport of mitochondrion / dynactin complex / F-actin capping protein complex / WASH complex / protein localization to centrosome / positive regulation of norepinephrine uptake / dynein complex / sperm head-tail coupling apparatus / cellular response to cytochalasin B / Formation of the embryonic stem cell BAF (esBAF) complex / regulation of transepithelial transport / cell junction assembly / Formation of the canonical BAF (cBAF) complex / morphogenesis of a polarized epithelium / Formation of annular gap junctions / Formation of the dystrophin-glycoprotein complex (DGC) / Formation of the polybromo-BAF (pBAF) complex / structural constituent of postsynaptic actin cytoskeleton / Gap junction degradation / GBP-mediated host defense / Formation of neuronal progenitor and neuronal BAF (npBAF and nBAF) / protein localization to adherens junction / Formation of the non-canonical BAF (ncBAF) complex / barbed-end actin filament capping / Cell-extracellular matrix interactions / regulation of G0 to G1 transition / dense body / Tat protein binding / Folding of actin by CCT/TriC / RHOD GTPase cycle / postsynaptic actin cytoskeleton / Regulation of CDH1 Function / apical protein localization / Adherens junctions interactions / microtubule nucleation / Prefoldin mediated transfer of substrate to CCT/TriC / RHOF GTPase cycle / adherens junction assembly / regulation of double-strand break repair / COPI-independent Golgi-to-ER retrograde traffic / Sensory processing of sound by outer hair cells of the cochlea / microtubule associated complex / cytoplasmic dynein complex / tight junction / Sensory processing of sound by inner hair cells of the cochlea / regulation of mitotic metaphase/anaphase transition / positive regulation of T cell differentiation / maintenance of blood-brain barrier / Interaction between L1 and Ankyrins / apical junction complex / spectrin binding / regulation of nucleotide-excision repair / positive regulation of stem cell population maintenance / NuA4 histone acetyltransferase complex / regulation of norepinephrine uptake / transporter regulator activity / Recycling pathway of L1 / positive regulation of double-strand break repair / cortical cytoskeleton / Regulation of MITF-M-dependent genes involved in pigmentation / negative regulation of cell differentiation / establishment or maintenance of cell polarity / nitric-oxide synthase binding / dynein complex binding / brush border / Advanced glycosylation endproduct receptor signaling / EPH-ephrin mediated repulsion of cells / mitotic metaphase chromosome alignment / regulation of synaptic vesicle endocytosis / RHO GTPases Activate WASPs and WAVEs / positive regulation of myoblast differentiation / kinesin binding / regulation of protein localization to plasma membrane / RHO GTPases activate IQGAPs / positive regulation of double-strand break repair via homologous recombination / COPI-mediated anterograde transport / regulation of G1/S transition of mitotic cell cycle / axonogenesis / cytoskeleton organization / vesicle-mediated transport / stress fiber / EPHB-mediated forward signaling / axon cytoplasm / 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 / Anchoring of the basal body to the plasma membrane / substantia nigra development / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / AURKA Activation by TPX2 / calyx of Held / cell motility / nitric-oxide synthase regulator activity / hippocampal mossy fiber to CA3 synapse / mitotic spindle organization / sarcomere / FCGR3A-mediated phagocytosis 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 | https://data.pdbj.org/pub/emdb/structures/EMD-44333 ftp://data.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

