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- PDB-7z8f: Composite structure of dynein-dynactin-BICDR on microtubules -

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Basic information

Entry
Database: PDB / ID: 7z8f
TitleComposite structure of dynein-dynactin-BICDR on microtubules
Components
  • (Cytoplasmic dynein 1 ...) x 3
  • (Dynactin subunit ...) x 5
  • ARP1 actin related protein 1 homolog A
  • Actin, cytoplasmic 1
  • Arp11
  • BICD family-like cargo adapter 1
  • Capping protein (Actin filament) muscle Z-line, alpha 1
  • Dynactin 6
  • Dynein light chain roadblock-type 1
  • F-actin capping protein beta subunit
KeywordsSTRUCTURAL PROTEIN / Dynein / dynactin / cargo transport / activating adaptor / cytoskeleton
Function / homology
Function and homology information


Golgi to secretory granule transport / RHOD GTPase cycle / Factors involved in megakaryocyte development and platelet production / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs / MAP2K and MAPK activation ...Golgi to secretory granule transport / RHOD GTPase cycle / Factors involved in megakaryocyte development and platelet production / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs / MAP2K and MAPK activation / retrograde axonal transport of mitochondrion / UCH proteinases / Gap junction degradation / Formation of annular gap junctions / RHOF GTPase cycle / Clathrin-mediated endocytosis / Formation of the dystrophin-glycoprotein complex (DGC) / centriolar subdistal appendage / positive regulation of neuromuscular junction development / Regulation of PLK1 Activity at G2/M Transition / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / dynactin complex / centriole-centriole cohesion / Recruitment of mitotic centrosome proteins and complexes / transport along microtubule / microtubule anchoring at centrosome / visual behavior / F-actin capping protein complex / WASH complex / dynein light chain binding / ventral spinal cord development / dynein heavy chain binding / retromer complex / cellular response to cytochalasin B / cytoskeleton-dependent cytokinesis / ciliary tip / microtubule plus-end / nuclear membrane disassembly / regulation of transepithelial transport / morphogenesis of a polarized epithelium / Intraflagellar transport / positive regulation of intracellular transport / positive regulation of microtubule nucleation / protein localization to adherens junction / structural constituent of postsynaptic actin cytoskeleton / postsynaptic actin cytoskeleton / regulation of metaphase plate congression / establishment of spindle localization / Tat protein binding / melanosome transport / dense body / Neutrophil degranulation / positive regulation of spindle assembly / barbed-end actin filament capping / non-motile cilium assembly / coronary vasculature development / apical protein localization / adherens junction assembly / regulation of cell morphogenesis / dynein complex / retrograde transport, endosome to Golgi / COPI-independent Golgi-to-ER retrograde traffic / retrograde axonal transport / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / tight junction / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / minus-end-directed microtubule motor activity / P-body assembly / microtubule motor activity / aorta development / microtubule associated complex / dynein light intermediate chain binding / cytoplasmic dynein complex / ventricular septum development / COPI-mediated anterograde transport / centrosome localization / motor behavior / dynein intermediate chain binding / regulation of norepinephrine uptake / apical junction complex / neuromuscular process / nuclear migration / transporter regulator activity / microtubule-based movement / neuromuscular junction development / nitric-oxide synthase binding / establishment or maintenance of cell polarity / cortical cytoskeleton / NuA4 histone acetyltransferase complex / dynein complex binding / cell leading edge / establishment of mitotic spindle orientation / cleavage furrow / dynactin binding
Similarity search - Function
Dynactin subunit 3 / Dynactin subunit p22 / : / Dynactin subunit 4 / Dynactin p62 family / Dynein associated protein / Dynein associated protein / Dynamitin / : / Dynamitin ...Dynactin subunit 3 / Dynactin subunit p22 / : / Dynactin subunit 4 / Dynactin p62 family / Dynein associated protein / Dynein associated protein / Dynamitin / : / Dynamitin / Dynactin subunit 6 / Dynein 1 light intermediate chain / Cytoplasmic dynein 1 intermediate chain 1/2 / Cytoplasmic dynein 1 intermediate chain 2 / Dynein family light intermediate chain / Dynein light intermediate chain (DLIC) / Dynactin subunit 5 / Dynein light chain roadblock-type 1/2 / F-actin-capping protein subunit beta / F-actin capping protein, beta subunit, conserved site / F-actin-capping protein subunit beta, N-terminal domain / F-actin capping protein, beta subunit / F-actin capping protein beta subunit signature. / F-actin capping protein, alpha subunit, conserved site / F-actin capping protein alpha subunit signature 1. / F-actin capping protein alpha subunit signature 2. / F-actin-capping protein subunit alpha / F-actin-capping protein subunit alpha/beta / F-actin-capping protein subunit alpha/beta, domain 2 / F-actin capping protein, alpha subunit, domain 1 / F-actin capping protein alpha subunit / CAP-Gly domain signature. / : / CAP Gly-rich domain / CAP Gly-rich domain superfamily / CAP-Gly domain / CAP-Gly domain profile. / CAP_GLY / Roadblock/LAMTOR2 domain / Roadblock/LC7 domain / Roadblock/LC7 domain / Dynein heavy chain, AAA 5 extension domain / Dynein heavy chain AAA lid domain / Dynein heavy chain, C-terminal domain / Dynein heavy chain, C-terminal domain, barrel region / Dynein heavy chain C-terminal domain / : / Dynein heavy chain, ATPase lid domain / P-loop containing dynein motor region / Dynein heavy chain, tail / Dynein heavy chain, N-terminal region 1 / Dynein heavy chain region D6 P-loop domain / Dynein heavy chain, linker / Dynein heavy chain, AAA module D4 / Dynein heavy chain, coiled coil stalk / Dynein heavy chain / Dynein heavy chain, hydrolytic ATP-binding dynein motor region / Dynein heavy chain, ATP-binding dynein motor region / Dynein heavy chain AAA lid domain / Dynein heavy chain AAA lid domain superfamily / Dynein heavy chain, domain 2, N-terminal / Dynein heavy chain, linker, subdomain 3 / Dynein heavy chain, AAA1 domain, small subdomain / Dynein heavy chain region D6 P-loop domain / Dynein heavy chain, N-terminal region 2 / Hydrolytic ATP binding site of dynein motor region / Microtubule-binding stalk of dynein motor / P-loop containing dynein motor region D4 / ATP-binding dynein motor region / Dynein heavy chain AAA lid domain / Trimeric LpxA-like superfamily / Actins signature 1. / Actin, conserved site / Actins signature 2. / Actin/actin-like conserved site / Actins and actin-related proteins signature. / Actin / Actin family / Actin / ATPase, nucleotide binding domain / WD domain, G-beta repeat / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER / ADENOSINE-5'-TRIPHOSPHATE / Dynactin subunit 5 / Dynactin subunit 4 / Dynactin subunit 2 / Dynactin subunit 1 / BICD family-like cargo adapter 1 / F-actin-capping protein subunit alpha-1 / F-actin-capping protein subunit beta ...ADENOSINE-5'-DIPHOSPHATE / PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER / ADENOSINE-5'-TRIPHOSPHATE / Dynactin subunit 5 / Dynactin subunit 4 / Dynactin subunit 2 / Dynactin subunit 1 / BICD family-like cargo adapter 1 / F-actin-capping protein subunit alpha-1 / F-actin-capping protein subunit beta / Dynactin subunit 6 / Dynactin subunit 3 / Alpha-centractin / Actin-related protein 10 / Cytoplasmic dynein 1 light intermediate chain 2 / Cytoplasmic dynein 1 intermediate chain 2 / Cytoplasmic dynein 1 heavy chain 1 / Actin, cytoplasmic 1 / Dynein light chain roadblock-type 1
Similarity search - Component
Biological speciesMus musculus (house mouse)
Homo sapiens (human)
Sus scrofa (pig)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 20 Å
AuthorsChaaban, S. / Carter, A.P.
Funding support United Kingdom, European Union, 3items
OrganizationGrant numberCountry
Wellcome Trust210711/Z/18/Z United Kingdom
Medical Research Council (MRC, United Kingdom)MC_UP_A025_1011 United Kingdom
European Molecular Biology Organization (EMBO)ALTF 334-2020European Union
CitationJournal: Nature / Year: 2022
Title: Structure of dynein-dynactin on microtubules shows tandem adaptor binding.
Authors: Sami Chaaban / Andrew P Carter /
Abstract: Cytoplasmic dynein is a microtubule motor that is activated by its cofactor dynactin and a coiled-coil cargo adaptor. Up to two dynein dimers can be recruited per dynactin, and interactions between ...Cytoplasmic dynein is a microtubule motor that is activated by its cofactor dynactin and a coiled-coil cargo adaptor. Up to two dynein dimers can be recruited per dynactin, and interactions between them affect their combined motile behaviour. Different coiled-coil adaptors are linked to different cargos, and some share motifs known to contact sites on dynein and dynactin. There is limited structural information on how the resulting complex interacts with microtubules and how adaptors are recruited. Here we develop a cryo-electron microscopy processing pipeline to solve the high-resolution structure of dynein-dynactin and the adaptor BICDR1 bound to microtubules. This reveals the asymmetric interactions between neighbouring dynein motor domains and how they relate to motile behaviour. We found that two adaptors occupy the complex. Both adaptors make similar interactions with the dyneins but diverge in their contacts with each other and dynactin. Our structure has implications for the stability and stoichiometry of motor recruitment by cargos.
History
DepositionMar 17, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 27, 2022Provider: repository / Type: Initial release
Revision 2.0Sep 28, 2022Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Database references / Derived calculations / Structure summary
Category: atom_site / citation ...atom_site / citation / em_software / pdbx_contact_author / pdbx_nonpoly_scheme / pdbx_poly_seq_scheme / pdbx_struct_sheet_hbond / pdbx_unobs_or_zero_occ_atoms / pdbx_unobs_or_zero_occ_residues / pdbx_validate_main_chain_plane / pdbx_validate_rmsd_angle / pdbx_validate_torsion / struct_asym / struct_conf / struct_conn / struct_sheet / struct_sheet_order / struct_sheet_range
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_software.category / _pdbx_nonpoly_scheme.auth_mon_id / _pdbx_nonpoly_scheme.auth_seq_num / _pdbx_nonpoly_scheme.entity_id / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _pdbx_nonpoly_scheme.pdb_seq_num / _pdbx_poly_seq_scheme.auth_mon_id / _pdbx_poly_seq_scheme.auth_seq_num / _pdbx_poly_seq_scheme.pdb_mon_id / _pdbx_validate_rmsd_angle.angle_deviation / _pdbx_validate_rmsd_angle.angle_standard_deviation / _pdbx_validate_rmsd_angle.angle_target_value / _pdbx_validate_rmsd_angle.angle_value / _pdbx_validate_rmsd_angle.auth_asym_id_1 / _pdbx_validate_rmsd_angle.auth_asym_id_2 / _pdbx_validate_rmsd_angle.auth_asym_id_3 / _pdbx_validate_rmsd_angle.auth_comp_id_2 / _pdbx_validate_rmsd_angle.auth_comp_id_3 / _pdbx_validate_rmsd_angle.auth_seq_id_1 / _pdbx_validate_rmsd_angle.auth_seq_id_2 / _pdbx_validate_rmsd_angle.auth_seq_id_3 / _struct_asym.entity_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_sheet.number_strands
Description: Model completeness / Details: Added LIC N-termini / Provider: author / Type: Coordinate replacement
Revision 2.1Oct 19, 2022Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 2.2Jul 24, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond / em_admin / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: ARP1 actin related protein 1 homolog A
B: ARP1 actin related protein 1 homolog A
C: ARP1 actin related protein 1 homolog A
D: ARP1 actin related protein 1 homolog A
E: ARP1 actin related protein 1 homolog A
F: ARP1 actin related protein 1 homolog A
G: ARP1 actin related protein 1 homolog A
H: Actin, cytoplasmic 1
I: ARP1 actin related protein 1 homolog A
J: Arp11
K: Capping protein (Actin filament) muscle Z-line, alpha 1
L: F-actin capping protein beta subunit
M: Dynactin subunit 2
N: Dynactin subunit 2
O: Dynactin subunit 3
P: Dynactin subunit 2
Q: Dynactin subunit 2
R: Dynactin subunit 3
S: Dynactin subunit 1
T: Dynactin subunit 1
U: Dynactin 6
V: Dynactin subunit 5
W: BICD family-like cargo adapter 1
X: BICD family-like cargo adapter 1
Y: Dynactin subunit 4
e: Cytoplasmic dynein 1 heavy chain 1
f: Cytoplasmic dynein 1 heavy chain 1
g: Cytoplasmic dynein 1 intermediate chain 2
h: Cytoplasmic dynein 1 intermediate chain 2
i: Cytoplasmic dynein 1 light intermediate chain 2
j: Cytoplasmic dynein 1 light intermediate chain 2
k: Dynein light chain roadblock-type 1
l: Dynein light chain roadblock-type 1
m: Cytoplasmic dynein 1 heavy chain 1
n: Cytoplasmic dynein 1 heavy chain 1
o: Cytoplasmic dynein 1 intermediate chain 2
p: Cytoplasmic dynein 1 intermediate chain 2
q: Cytoplasmic dynein 1 light intermediate chain 2
r: Cytoplasmic dynein 1 light intermediate chain 2
s: Dynein light chain roadblock-type 1
t: Dynein light chain roadblock-type 1
w: BICD family-like cargo adapter 1
x: BICD family-like cargo adapter 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)4,045,15886
Polymers4,032,48243
Non-polymers12,67643
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 8 types, 21 molecules ABCDEFGIHJKLUWXwxklst

#1: Protein
ARP1 actin related protein 1 homolog A


Mass: 42670.688 Da / Num. of mol.: 8 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F2Z5G5
#2: Protein Actin, cytoplasmic 1 / Beta-actin


Mass: 41782.660 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: Q6QAQ1
#3: Protein Arp11


Mass: 46250.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LHK5
#4: Protein Capping protein (Actin filament) muscle Z-line, alpha 1 / F-actin capping protein alpha 1 subunit / F-actin capping protein subunit alpha 1


Mass: 33059.848 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0PFK5
#5: Protein F-actin capping protein beta subunit / F-actin-capping protein subunit beta / F-actin-capping protein subunit beta isoform 1


Mass: 30669.768 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A9XFX6
#9: Protein Dynactin 6


Mass: 20703.910 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: D0G6S1
#11: Protein
BICD family-like cargo adapter 1 / Bicaudal D-related protein 1 / BICDR-1 / Coiled-coil domain-containing protein 64A


Mass: 65377.035 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Bicdl1, Bicdr1, Ccdc64 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: A0JNT9
#16: Protein
Dynein light chain roadblock-type 1 / Bithoraxoid-like protein / BLP / Dynein light chain 2A / cytoplasmic / Dynein-associated protein ...Bithoraxoid-like protein / BLP / Dynein light chain 2A / cytoplasmic / Dynein-associated protein Km23 / Roadblock domain-containing protein 1


Mass: 10934.576 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DYNLRB1, BITH, DNCL2A, DNLC2A, ROBLD1, HSPC162 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q9NP97

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Dynactin subunit ... , 5 types, 10 molecules MNPQORSTVY

#6: Protein
Dynactin subunit 2


Mass: 44704.414 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A5G2QD80
#7: Protein Dynactin subunit 3 / Dynactin subunit 3 isoform 1


Mass: 21192.477 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1SEC0
#8: Protein Dynactin subunit 1


Mass: 142015.484 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A8D1D718
#10: Protein Dynactin subunit 5


Mass: 20150.533 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A286ZK88
#12: Protein Dynactin subunit 4 / Dynactin subunit 4


Mass: 52920.434 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A4X1TB62

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Cytoplasmic dynein 1 ... , 3 types, 12 molecules efmnghopijqr

#13: Protein
Cytoplasmic dynein 1 heavy chain 1 / Cytoplasmic dynein heavy chain 1 / Dynein heavy chain / cytosolic


Mass: 533055.125 Da / Num. of mol.: 4 / Mutation: R1567E, K1610E
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DYNC1H1, DHC1, DNCH1, DNCL, DNECL, DYHC, KIAA0325 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q14204
#14: Protein
Cytoplasmic dynein 1 intermediate chain 2 / Cytoplasmic dynein intermediate chain 2 / Dynein intermediate chain 2 / cytosolic / DH IC-2


Mass: 71546.445 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DYNC1I2, DNCI2, DNCIC2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q13409
#15: Protein
Cytoplasmic dynein 1 light intermediate chain 2 / Dynein light intermediate chain 2 / cytosolic / LIC-2 / LIC53/55


Mass: 54173.156 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DYNC1LI2, DNCLI2, LIC2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: O43237

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Non-polymers , 5 types, 43 molecules

#17: Chemical
ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 13 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#18: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 14 / Source method: obtained synthetically / Formula: Mg
#19: Chemical
ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Comment: ATP, energy-carrying molecule*YM
#20: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Zn
#21: Chemical
ChemComp-ANP / PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER


Mass: 506.196 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: C10H17N6O12P3 / Comment: AMP-PNP, energy-carrying molecule analogue*YM

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Details

Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Complex of dynein, dynactin, and BICDR1 bound to microtubulesCOMPLEX#1-#70MULTIPLE SOURCES
2Dynein, cytoplasmic 1ORGANELLE OR CELLULAR COMPONENT#13-#161RECOMBINANT
3DynactinORGANELLE OR CELLULAR COMPONENT#1-#101NATURAL
4BICDR1ORGANELLE OR CELLULAR COMPONENT#111RECOMBINANT
Molecular weight
IDEntity assembly-IDValue (°)Experimental value
114 MDaNO
221.4 MDaNO
331.1 MDaNO
440.13 MDaNO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
32Homo sapiens (human)9606
43Sus scrofa (pig)9823
84Mus musculus (house mouse)10090
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
22Spodoptera frugiperda (fall armyworm)7108
54Spodoptera frugiperda (fall armyworm)7108
Buffer solutionpH: 7.2
Buffer component
IDConc.NameFormulaBuffer-ID
130 mM4-(2-hydroxyethyl)-1-piperazineethanesulfonic acidHEPES1
260 mMPotassium chlorideKCl1
35 mMMagnesium sulfateMgSO41
41 mM3,12-Bis(carboxymethyl)-6,9-dioxa-3,12-diazatetradecane-1,14-dioic acidEGTA1
51 mMDithiothreitolDTT1
63 mMAdenylyl-imidodiphosphateAMPPNP1
75 uMPaclitaxelTaxol1
80.01 %OctylphenoxypolyethoxyethanolIGEPAL1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293.15 K / Details: 20 second incubation

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 4000 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 3 sec. / Electron dose: 53 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 14 / Num. of real images: 88715
Details: Images were collected in movie-mode and fractionated into 53 movie frames
EM imaging opticsEnergyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV
Image scansWidth: 5760 / Height: 4092

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Processing

EM software
IDNameCategory
2EPUimage acquisition
7Cootmodel fitting
9PHENIXmodel refinement
10RELIONinitial Euler assignment
11RELIONfinal Euler assignment
13RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 20 Å / Resolution method: OTHER / Num. of particles: 628033
Details: This is a composite of multiple maps with resolutions ranging from 3.3-12.2 A, resampled on a grid of 2.5 A/pix
Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL

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