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Yorodumi- PDB-9b7j: Cryo-EM structure of human dynactin complex bound to Chlamydia ef... -
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Basic information
| Entry | Database: PDB / ID: 9b7j | ||||||
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| Title | Cryo-EM structure of human dynactin complex bound to Chlamydia effector Dre1 | ||||||
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Keywords | MOTOR PROTEIN / Human dynactin / Chlamydia effector / host-pathogen interaction | ||||||
| Function / homology | Function and homology informationcell cortex region / retrograde axonal transport of mitochondrion / dynactin complex / centriolar subdistal appendage / positive regulation of neuromuscular junction development / centriole-centriole cohesion / microtubule anchoring at centrosome / F-actin capping protein complex / WASH complex / maintenance of synapse structure ...cell cortex region / retrograde axonal transport of mitochondrion / dynactin complex / centriolar subdistal appendage / positive regulation of neuromuscular junction development / centriole-centriole cohesion / microtubule anchoring at centrosome / F-actin capping protein complex / WASH complex / maintenance of synapse structure / ventral spinal cord development / positive regulation of norepinephrine uptake / cytoskeleton-dependent cytokinesis / mitotic nuclear membrane disassembly / dynein complex / microtubule plus-end / bBAF complex / Formation of the embryonic stem cell BAF (esBAF) complex / cellular response to cytochalasin B / npBAF complex / XBP1(S) activates chaperone genes / brahma complex / positive regulation of microtubule nucleation / 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 / non-motile cilium assembly / 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 / retrograde transport, endosome to Golgi / apical protein localization / sperm glycocalyx / 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 / perinuclear theca / 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 / nuclear migration / neuromuscular process / apical junction complex / spectrin binding / positive regulation of double-strand break repair / regulation of norepinephrine uptake / transporter regulator activity / establishment of mitotic spindle orientation / maintenance of blood-brain barrier / neuromuscular junction development / positive regulation of stem cell population maintenance / NuA4 histone acetyltransferase complex / establishment or maintenance of cell polarity / motor behavior / cell leading edge / Regulation of MITF-M-dependent genes involved in pigmentation / cortical cytoskeleton / Recycling pathway of L1 / cleavage furrow / dynein complex binding / nitric-oxide synthase binding / regulation of G1/S transition of mitotic cell cycle / brush border Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.49 Å | ||||||
Authors | Pawar, K.I. / Verba, K.A. | ||||||
| Funding support | 1items
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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
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9b7j.cif.gz | 2.6 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9b7j.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9b7j.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/b7/9b7j ftp://data.pdbj.org/pub/pdb/validation_reports/b7/9b7j | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 44306MC ![]() 9b85C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 3 types, 10 molecules ABCDEFGIHJ
| #1: Protein | Mass: 42670.688 Da / Num. of mol.: 8 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P61163#2: Protein | | Mass: 41782.660 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P60709#3: Protein | | Mass: 46360.863 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9NZ32 |
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-Dynactin subunit ... , 9 types, 13 molecules KLMPQpqRrSTUs
| #4: Protein | Mass: 52409.016 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UJW0 | ||||||||||
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| #5: Protein | Mass: 20150.533 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9BTE1 | ||||||||||
| #6: Protein | Mass: 20769.002 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O00399 | ||||||||||
| #9: Protein | Mass: 44285.891 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q13561#10: Protein | Mass: 21145.379 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O75935#11: Protein | | Mass: 141920.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q14203#12: Protein | | Mass: 7081.720 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)#13: Protein | | Mass: 7422.140 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)#14: Protein | | Mass: 141892.547 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q14203 |
-F-actin-capping protein subunit ... , 2 types, 2 molecules NO
| #7: Protein | Mass: 32964.727 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P52907 |
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| #8: Protein | Mass: 30669.768 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P47756 |
-Non-polymers , 3 types, 12 molecules 




| #15: Chemical | ChemComp-ADP / #16: Chemical | ChemComp-ANP / | #17: Chemical | |
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-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Human dynactin complex bound to Chlamydia effector Dre1 Type: COMPLEX / Entity ID: #1-#14 / Source: NATURAL |
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| Molecular weight | Value: 1.1 MDa / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 57.7 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 3.49 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 45091 / Symmetry type: POINT |
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FIELD EMISSION GUN