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- PDB-9eam: Coronin-7 CA bound to Arp2/3 complex -

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Basic information

Entry
Database: PDB / ID: 9eam
TitleCoronin-7 CA bound to Arp2/3 complex
Components
  • (Actin-related protein ...) x 7
  • Coronin-7
KeywordsPROTEIN BINDING / cytoskeleton / actin / cell motility
Function / homology
Function and homology information


muscle cell projection membrane / EPHB-mediated forward signaling / Regulation of actin dynamics for phagocytic cup formation / RHO GTPases Activate WASPs and WAVEs / Arp2/3 protein complex / Arp2/3 complex-mediated actin nucleation / positive regulation of hippo signaling / Golgi to endosome transport / regulation of actin filament polymerization / Clathrin-mediated endocytosis ...muscle cell projection membrane / EPHB-mediated forward signaling / Regulation of actin dynamics for phagocytic cup formation / RHO GTPases Activate WASPs and WAVEs / Arp2/3 protein complex / Arp2/3 complex-mediated actin nucleation / positive regulation of hippo signaling / Golgi to endosome transport / regulation of actin filament polymerization / Clathrin-mediated endocytosis / Neutrophil degranulation / establishment of cell polarity / positive regulation of actin filament polymerization / Golgi organization / cilium assembly / positive regulation of double-strand break repair via homologous recombination / positive regulation of lamellipodium assembly / actin filament polymerization / positive regulation of substrate adhesion-dependent cell spreading / cell projection / trans-Golgi network / structural constituent of cytoskeleton / actin filament binding / synaptic vesicle membrane / cell migration / protein transport / lamellipodium / site of double-strand break / actin binding / cytoplasmic vesicle / cell cortex / postsynapse / neuron projection / endosome / Golgi membrane / focal adhesion / glutamatergic synapse / Golgi apparatus / positive regulation of transcription by RNA polymerase II / nucleoplasm / ATP binding / nucleus / membrane / cytoplasm / cytosol
Similarity search - Function
Domain of unknown function DUF1899 / Coronin / Domain of unknown function (DUF1899) / Type of WD40 repeat / DUF1899 / DUF1900 / Actin-related protein 2/3 complex subunit 5 / ARP2/3 complex 16 kDa subunit (p16-Arc) / Actin-related protein 2/3 complex subunit 2 / Actin-related protein 2/3 complex subunit 3 ...Domain of unknown function DUF1899 / Coronin / Domain of unknown function (DUF1899) / Type of WD40 repeat / DUF1899 / DUF1900 / Actin-related protein 2/3 complex subunit 5 / ARP2/3 complex 16 kDa subunit (p16-Arc) / Actin-related protein 2/3 complex subunit 2 / Actin-related protein 2/3 complex subunit 3 / Actin-related protein 2/3 complex subunit 4 / Actin-related protein 2/3 complex subunit 1 / Arp2/3 complex subunit 2/4 / Actin-related protein 2/3 complex subunit 5 superfamily / Actin-related protein 2/3 complex subunit 3 superfamily / Arp2/3 complex, 34 kD subunit p34-Arc / ARP2/3 complex ARPC3 (21 kDa) subunit / ARP2/3 complex 20 kDa subunit (ARPC4) / Actin/actin-like conserved site / Actins and actin-related proteins signature. / Actin / Actin family / Actin / ATPase, nucleotide binding domain / WD domain, G-beta repeat / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
ADENOSINE-5'-TRIPHOSPHATE / Actin-related protein 2 / Coronin-7 / Actin-related protein 3 / Actin-related protein 2/3 complex subunit 4 / Actin-related protein 2/3 complex subunit 1A / Actin-related protein 2/3 complex subunit 2 / Actin-related protein 2/3 complex subunit 5 / Actin-related protein 2/3 complex subunit 3
Similarity search - Component
Biological speciesHomo sapiens (human)
Bos taurus (domestic cattle)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.97 Å
AuthorsFregoso, F.E. / Barrie, K.R. / Dominguez, R.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM073791 United States
CitationJournal: To Be Published
Title: Coronin-7 is an Arp2/3 complex debrancher
Authors: Fregoso, F.E. / Barrie, K.R. / Saks, A.J. / Dominguez, R.
History
DepositionNov 11, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 19, 2025Provider: repository / Type: Initial release
Revision 1.0Nov 19, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Nov 19, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Nov 19, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Actin-related protein 3
B: Actin-related protein 2
C: Actin-related protein 2/3 complex subunit 1A
D: Actin-related protein 2/3 complex subunit 2
E: Actin-related protein 2/3 complex subunit 3
F: Actin-related protein 2/3 complex subunit 4
G: Actin-related protein 2/3 complex subunit 5
H: Coronin-7
hetero molecules


Theoretical massNumber of molelcules
Total (without water)230,20812
Polymers229,1458
Non-polymers1,0634
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Actin-related protein ... , 7 types, 7 molecules ABCDEFG

#1: Protein Actin-related protein 3 / Actin-2 / Actin-like protein 3


Mass: 47428.031 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: P61157
#2: Protein Actin-related protein 2 / Actin-like protein 2


Mass: 44818.711 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: A7MB62
#3: Protein Actin-related protein 2/3 complex subunit 1A


Mass: 41594.238 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: Q1JP79
#4: Protein Actin-related protein 2/3 complex subunit 2 / Arp2/3 complex 34 kDa subunit / p34-ARC


Mass: 34402.043 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: Q3MHR7
#5: Protein Actin-related protein 2/3 complex subunit 3 / Arp2/3 complex 21 kDa subunit / p21-ARC


Mass: 20572.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: Q3T035
#6: Protein Actin-related protein 2/3 complex subunit 4 / Arp2/3 complex 20 kDa subunit / p20-ARC


Mass: 19697.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: Q148J6
#7: Protein Actin-related protein 2/3 complex subunit 5 / Arp2/3 complex 16 kDa subunit / p16-ARC


Mass: 16251.308 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / References: UniProt: Q3SYX9

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Protein/peptide , 1 types, 1 molecules H

#8: Protein/peptide Coronin-7 / Crn7 / 70 kDa WD repeat tumor rejection antigen homolog


Mass: 4380.667 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CORO7 / Production host: Escherichia coli (E. coli) / References: UniProt: P57737

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Non-polymers , 2 types, 4 molecules

#9: Chemical ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Comment: ATP, energy-carrying molecule*YM
#10: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg

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Details

Has ligand of interestN
Has protein modificationN

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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

ComponentName: Structure of Coronin-7 CA bound to Arp2/3 complex / Type: COMPLEX / Entity ID: #1-#8 / Source: NATURAL
Molecular weightValue: 0.23 MDa / Experimental value: NO
Source (natural)Organism: Bos taurus (domestic cattle)
Buffer solutionpH: 7
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: 4D-STEM / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.97 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 116851
Details: Please note that the map included in this submission is a composite map, and therefore does not have a single resolution or number of particles associated with it. The map was obtained by ...Details: Please note that the map included in this submission is a composite map, and therefore does not have a single resolution or number of particles associated with it. The map was obtained by combining multiple other maps (related entries, already deposited) that each have different resolutions and numbers of particles. Since the values indicated above are required, they reflect the consensus map (EMD-47408).
Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00516120
ELECTRON MICROSCOPYf_angle_d0.8421802
ELECTRON MICROSCOPYf_dihedral_angle_d5.6732144
ELECTRON MICROSCOPYf_chiral_restr0.0592384
ELECTRON MICROSCOPYf_plane_restr0.0082812

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