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- PDB-8til: Human ACKR3 phosphorylated by GRK5 in complex with Arrestin3 reco... -

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Basic information

Entry
Database: PDB / ID: 8til
TitleHuman ACKR3 phosphorylated by GRK5 in complex with Arrestin3 reconstructed without receptor/micelle
Components
  • Atypical chemokine receptor 3
  • Beta-arrestin-2
  • Fab7 heavy chain
  • Fab7 light chain
KeywordsSIGNALING PROTEIN/IMMUNE SYSTEM / complex / GPCR / arrestin / signaling / SIGNALING PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


oculomotor nerve development / positive regulation of mesenchymal stem cell migration / C-X-C chemokine binding / angiotensin receptor binding / C-X-C chemokine receptor activity / desensitization of G protein-coupled receptor signaling pathway / C-C chemokine receptor activity / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage / chemokine-mediated signaling pathway / C-C chemokine binding ...oculomotor nerve development / positive regulation of mesenchymal stem cell migration / C-X-C chemokine binding / angiotensin receptor binding / C-X-C chemokine receptor activity / desensitization of G protein-coupled receptor signaling pathway / C-C chemokine receptor activity / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage / chemokine-mediated signaling pathway / C-C chemokine binding / G protein-coupled receptor internalization / inositol hexakisphosphate binding / Chemokine receptors bind chemokines / scavenger receptor activity / phosphatidylinositol-3,4,5-trisphosphate binding / positive regulation of receptor internalization / endocytic vesicle / vasculogenesis / coreceptor activity / clathrin-coated pit / phosphatidylinositol binding / cell chemotaxis / calcium-mediated signaling / recycling endosome / receptor internalization / protein transport / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / angiogenesis / early endosome / positive regulation of ERK1 and ERK2 cascade / endosome / cell adhesion / immune response / external side of plasma membrane / negative regulation of cell population proliferation / intracellular membrane-bounded organelle / cell surface / signal transduction / nucleus / plasma membrane / cytoplasm
Similarity search - Function
Atypical chemokine receptor 3 / : / Arrestin, conserved site / Arrestins signature. / Arrestin / Arrestin, N-terminal / Arrestin-like, N-terminal / Arrestin C-terminal-like domain / Arrestin (or S-antigen), N-terminal domain / Arrestin (or S-antigen), C-terminal domain ...Atypical chemokine receptor 3 / : / Arrestin, conserved site / Arrestins signature. / Arrestin / Arrestin, N-terminal / Arrestin-like, N-terminal / Arrestin C-terminal-like domain / Arrestin (or S-antigen), N-terminal domain / Arrestin (or S-antigen), C-terminal domain / Arrestin (or S-antigen), C-terminal domain / Arrestin-like, C-terminal / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / Immunoglobulin E-set
Similarity search - Domain/homology
Atypical chemokine receptor 3 / Beta-arrestin-2
Similarity search - Component
Biological speciessynthetic construct (others)
Homo sapiens (human)
Bos taurus (domestic cattle)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsChen, Q. / Tesmer, J.J.G.
Funding support United States, Denmark, 12items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)CA254402 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM117372 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI161880 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)CA221289 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)CA023168 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM137505 United States
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)HL071818 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)CA023168 United States
Walther Cancer Foundation United States
Robertson Foundation/Cancer Research InstituteIrvington Postdoctoral Fellowship United States
VILLUM FONDEN00025326 Denmark
Ralph W. and Grace M. Showalter Research Trust4480108 United States
CitationJournal: Nature / Year: 2025
Title: Effect of phosphorylation barcodes on arrestin binding to a chemokine receptor.
Authors: Qiuyan Chen / Christopher T Schafer / Somnath Mukherjee / Kai Wang / Martin Gustavsson / James R Fuller / Katelyn Tepper / Thomas D Lamme / Yasmin Aydin / Parth Agrawal / Genki Terashi / Xin- ...Authors: Qiuyan Chen / Christopher T Schafer / Somnath Mukherjee / Kai Wang / Martin Gustavsson / James R Fuller / Katelyn Tepper / Thomas D Lamme / Yasmin Aydin / Parth Agrawal / Genki Terashi / Xin-Qiu Yao / Daisuke Kihara / Anthony A Kossiakoff / Tracy M Handel / John J G Tesmer /
Abstract: Unique phosphorylation 'barcodes' installed in different regions of an active seven-transmembrane receptor by different G-protein-coupled receptor (GPCR) kinases (GRKs) have been proposed to promote ...Unique phosphorylation 'barcodes' installed in different regions of an active seven-transmembrane receptor by different G-protein-coupled receptor (GPCR) kinases (GRKs) have been proposed to promote distinct cellular outcomes, but it is unclear whether or how arrestins differentially engage these barcodes. Here, to address this, we developed an antigen-binding fragment (Fab7) that recognizes both active arrestin2 (β-arrestin1) and arrestin3 (β-arrestin2) without interacting with bound receptor polypeptides. We used Fab7 to determine the structures of both arrestins in complex with atypical chemokine receptor 3 (ACKR3) phosphorylated in different regions of its C-terminal tail by either GRK2 or GRK5 (ref. ). The GRK2-phosphorylated ACKR3 resulted in more heterogeneous 'tail-mode' assemblies, whereas phosphorylation by GRK5 resulted in more rigid 'ACKR3-adjacent' assemblies. Unexpectedly, the finger loops of both arrestins engaged the micelle surface rather than the receptor intracellular pocket, with arrestin3 being more dynamic, partly because of its lack of a membrane-anchoring motif. Thus, both the region of the barcode and the arrestin isoform involved can alter the structure and dynamics of GPCR-arrestin complexes, providing a possible mechanistic basis for unique downstream cellular effects, such as the efficiency of chemokine scavenging and the robustness of arrestin binding in ACKR3.
History
DepositionJul 19, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 22, 2025Provider: repository / Type: Initial release
Revision 1.0Jan 22, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jan 22, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jan 22, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jan 22, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jan 22, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jan 22, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1May 14, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 14, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name
Revision 1.2Jun 18, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
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_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
H: Fab7 heavy chain
L: Fab7 light chain
R: Atypical chemokine receptor 3
A: Beta-arrestin-2


Theoretical massNumber of molelcules
Total (without water)138,6544
Polymers138,6544
Non-polymers00
Water00
1


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

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Components

#1: Antibody Fab7 heavy chain


Mass: 25720.758 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#2: Antibody Fab7 light chain


Mass: 23471.031 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#3: Protein Atypical chemokine receptor 3 / C-X-C chemokine receptor type 7 / CXC-R7 / CXCR-7 / Chemokine orphan receptor 1 / G-protein coupled ...C-X-C chemokine receptor type 7 / CXC-R7 / CXCR-7 / Chemokine orphan receptor 1 / G-protein coupled receptor 159 / G-protein coupled receptor RDC1 homolog / RDC-1


Mass: 45356.367 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: phosphorylated by GRK5 / Source: (gene. exp.) Homo sapiens (human) / Gene: ACKR3, CMKOR1, CXCR7, GPR159, RDC1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P25106
#4: Protein Beta-arrestin-2 / Arrestin beta-2 / Arrestin-3


Mass: 44106.336 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bos taurus (domestic cattle) / Gene: ARRB2 / Production host: Escherichia coli (E. coli) / References: UniProt: P32120
Has ligand of interestY
Has protein modificationY

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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: human ACKR3 phosphorylated by GRK5 in complex with Arrestin3 reconstructed without receptor/micelle
Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES
Source (natural)Organism: Bos taurus (domestic cattle)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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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 defocus max: 2500 nm / Nominal defocus min: 600 nm
Image recordingElectron dose: 56 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 296617 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0035630
ELECTRON MICROSCOPYf_angle_d0.5377636
ELECTRON MICROSCOPYf_dihedral_angle_d12.4912038
ELECTRON MICROSCOPYf_chiral_restr0.044875
ELECTRON MICROSCOPYf_plane_restr0.004951

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