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Yorodumi- EMDB-44333: Cryo-EM structure of human dynactin complex bound to Chlamydia ef... -
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Basic information
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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 / dynein complex / bBAF complex / Formation of the embryonic stem cell BAF (esBAF) complex / cellular response to cytochalasin B / npBAF complex ...retrograde axonal transport of mitochondrion / dynactin complex / F-actin capping protein complex / WASH complex / positive regulation of norepinephrine uptake / dynein complex / bBAF complex / Formation of the embryonic stem cell BAF (esBAF) complex / cellular response to cytochalasin B / npBAF complex / brahma complex / nBAF complex / Formation of the canonical BAF (cBAF) complex / regulation of transepithelial transport / Formation of neuronal progenitor and neuronal BAF (npBAF and nBAF) / morphogenesis of a polarized epithelium / Formation of annular gap junctions / Formation of the polybromo-BAF (pBAF) complex / Formation of the dystrophin-glycoprotein complex (DGC) / structural constituent of postsynaptic actin cytoskeleton / cell junction assembly / Gap junction degradation / Formation of the non-canonical BAF (ncBAF) complex / GBAF complex / regulation of G0 to G1 transition / protein localization to adherens junction / Cell-extracellular matrix interactions / melanosome transport / barbed-end actin filament capping / dense body / Folding of actin by CCT/TriC / Tat protein binding / actin polymerization or depolymerization / postsynaptic actin cytoskeleton / coronary vasculature development / RSC-type complex / RHOD GTPase cycle / Regulation of CDH1 Function / regulation of double-strand break repair / regulation of nucleotide-excision repair / Prefoldin mediated transfer of substrate to CCT/TriC / regulation of cell morphogenesis / Adherens junctions interactions / protein localization to centrosome / RHOF GTPase cycle / adherens junction assembly / apical protein localization / COPI-independent Golgi-to-ER retrograde traffic / Sensory processing of sound by outer hair cells of the cochlea / Interaction between L1 and Ankyrins / microtubule associated complex / regulation of mitotic metaphase/anaphase transition / SWI/SNF complex / cytoplasmic dynein complex / tight junction / lamellipodium assembly / Sensory processing of sound by inner hair cells of the cochlea / ventricular septum development / positive regulation of T cell differentiation / aorta development / mitotic metaphase chromosome alignment / apical junction complex / spectrin binding / positive regulation of double-strand break repair / regulation of norepinephrine uptake / transporter regulator activity / maintenance of blood-brain barrier / positive regulation of stem cell population maintenance / NuA4 histone acetyltransferase complex / establishment or maintenance of cell polarity / Regulation of MITF-M-dependent genes involved in pigmentation / cortical cytoskeleton / Recycling pathway of L1 / dynein complex binding / nitric-oxide synthase binding / regulation of G1/S transition of mitotic cell cycle / brush border / Advanced glycosylation endproduct receptor signaling / sperm head-tail coupling apparatus / EPH-ephrin mediated repulsion of cells / negative regulation of cell differentiation / RHO GTPases Activate WASPs and WAVEs / regulation of synaptic vesicle endocytosis / positive regulation of myoblast differentiation / kinesin binding / 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 / vesicle-mediated transport / stress fiber / 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 / axonogenesis / 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

