[English] 日本語
Yorodumi
- EMDB-34917: Structure of CXCR3 complexed with antagonist SCH546738 -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-34917
TitleStructure of CXCR3 complexed with antagonist SCH546738
Map data
Sample
  • Complex: CXCR3-KOR-SCH546738-Nb6
    • Protein or peptide: Nb6
    • Protein or peptide: Soluble cytochrome b562,C-X-C chemokine receptor type 3,Kappa-type opioid receptor
  • Ligand: 3-azanyl-6-chloranyl-5-[(3S)-4-[1-[(4-chlorophenyl)methyl]piperidin-4-yl]-3-ethyl-piperazin-1-yl]pyrazine-2-carboxamide
  • Ligand: CHOLESTEROL
KeywordsG protein coupled receptor / chemokine receptor / CXCR3 / SCH546738 / complex / SIGNALING PROTEIN
Function / homology
Function and homology information


response to acrylamide / regulation of leukocyte migration / adenylate cyclase-inhibiting opioid receptor signaling pathway / dynorphin receptor activity / regulation of saliva secretion / negative regulation of luteinizing hormone secretion / sensory perception of temperature stimulus / chemokine binding / positive regulation of eating behavior / C-X-C chemokine binding ...response to acrylamide / regulation of leukocyte migration / adenylate cyclase-inhibiting opioid receptor signaling pathway / dynorphin receptor activity / regulation of saliva secretion / negative regulation of luteinizing hormone secretion / sensory perception of temperature stimulus / chemokine binding / positive regulation of eating behavior / C-X-C chemokine binding / G protein-coupled opioid receptor activity / chemokine receptor activity / G protein-coupled opioid receptor signaling pathway / C-X-C chemokine receptor activity / positive regulation of dopamine secretion / positive regulation of chemotaxis / C-C chemokine receptor activity / sensory perception / T cell chemotaxis / C-C chemokine binding / maternal behavior / positive regulation of potassium ion transmembrane transport / receptor serine/threonine kinase binding / negative regulation of execution phase of apoptosis / positive regulation of p38MAPK cascade / neuropeptide binding / Chemokine receptors bind chemokines / eating behavior / negative regulation of endothelial cell proliferation / conditioned place preference / positive regulation of execution phase of apoptosis / neuropeptide signaling pathway / estrous cycle / regulation of cell adhesion / MECP2 regulates neuronal receptors and channels / behavioral response to cocaine / axon terminus / sensory perception of pain / T-tubule / Peptide ligand-binding receptors / negative regulation of angiogenesis / sarcoplasmic reticulum / positive regulation of release of sequestered calcium ion into cytosol / cell chemotaxis / response to nicotine / locomotory behavior / cellular response to glucose stimulus / calcium-mediated signaling / electron transport chain / response to insulin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / response to estrogen / adenylate cyclase-activating G protein-coupled receptor signaling pathway / positive regulation of angiogenesis / chemotaxis / synaptic vesicle membrane / signaling receptor activity / cellular response to lipopolysaccharide / positive regulation of cytosolic calcium ion concentration / presynaptic membrane / response to ethanol / angiogenesis / G alpha (i) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / perikaryon / defense response to virus / chemical synaptic transmission / postsynaptic membrane / periplasmic space / electron transfer activity / cell surface receptor signaling pathway / cell adhesion / neuron projection / immune response / G protein-coupled receptor signaling pathway / iron ion binding / inflammatory response / external side of plasma membrane / positive regulation of cell population proliferation / apoptotic process / heme binding / dendrite / cell surface / positive regulation of transcription by RNA polymerase II / mitochondrion / nucleoplasm / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
CXC chemokine receptor 3 / Kappa opioid receptor / Opioid receptor / Chemokine receptor family / : / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein coupled receptors family 1 signature. ...CXC chemokine receptor 3 / Kappa opioid receptor / Opioid receptor / Chemokine receptor family / : / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / Serpentine type 7TM GPCR chemoreceptor Srsx / 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)
Similarity search - Domain/homology
Soluble cytochrome b562 / Kappa-type opioid receptor / C-X-C chemokine receptor type 3
Similarity search - Component
Biological speciesHomo sapiens (human) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsJiao HZ / Hu HL
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32100963 China
CitationJournal: Nat Struct Mol Biol / Year: 2024
Title: Structural insights into the activation and inhibition of CXC chemokine receptor 3.
Authors: Haizhan Jiao / Bin Pang / Aijun Liu / Qiang Chen / Qi Pan / Xiankun Wang / Yunong Xu / Ying-Chih Chiang / Ruobing Ren / Hongli Hu /
Abstract: The chemotaxis of CD4 type 1 helper cells and CD8 cytotoxic lymphocytes, guided by interferon-inducible CXC chemokine 9-11 (CXCL9-11) and CXC chemokine receptor 3 (CXCR3), plays a critical role in ...The chemotaxis of CD4 type 1 helper cells and CD8 cytotoxic lymphocytes, guided by interferon-inducible CXC chemokine 9-11 (CXCL9-11) and CXC chemokine receptor 3 (CXCR3), plays a critical role in type 1 immunity. Here we determined the structures of human CXCR3-DNG complexes activated by chemokine CXCL11, peptidomimetic agonist PS372424 and biaryl-type agonist VUF11222, and the structure of inactive CXCR3 bound to noncompetitive antagonist SCH546738. Structural analysis revealed that PS372424 shares a similar orthosteric binding pocket to the N terminus of CXCL11, while VUF11222 buries deeper and activates the receptor in a distinct manner. We showed an allosteric binding site between TM5 and TM6, accommodating SCH546738 in the inactive CXCR3. SCH546738 may restrain the receptor at an inactive state by preventing the repacking of TM5 and TM6. By revealing the binding patterns and the pharmacological properties of the four modulators, we present the activation mechanisms of CXCR3 and provide insights for future drug development.
History
DepositionDec 8, 2022-
Header (metadata) releaseNov 29, 2023-
Map releaseNov 29, 2023-
UpdateJul 23, 2025-
Current statusJul 23, 2025Processing site: PDBc / Status: Released

-
Structure visualization

Supplemental images

emd_34917.png

Downloads & links

-
Map

FileDownload / File: emd_34917.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.85 Å/pix.
x 280 pix.
= 238. Å		0.85 Å/pix.
x 280 pix.
= 238. Å		0.85 Å/pix.
x 280 pix.
= 238. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.85 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.58
Minimum - Maximum-3.9737642 - 5.557085
Average (Standard dev.)-0.0012886183 (±0.08034055)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 238.0 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Additional map: #1

Fileemd_34917_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_34917_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #1

Fileemd_34917_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : CXCR3-KOR-SCH546738-Nb6

EntireName: CXCR3-KOR-SCH546738-Nb6
Components
  • Complex: CXCR3-KOR-SCH546738-Nb6
    • Protein or peptide: Nb6
    • Protein or peptide: Soluble cytochrome b562,C-X-C chemokine receptor type 3,Kappa-type opioid receptor
  • Ligand: 3-azanyl-6-chloranyl-5-[(3S)-4-[1-[(4-chlorophenyl)methyl]piperidin-4-yl]-3-ethyl-piperazin-1-yl]pyrazine-2-carboxamide
  • Ligand: CHOLESTEROL

-
Supramolecule #1: CXCR3-KOR-SCH546738-Nb6

SupramoleculeName: CXCR3-KOR-SCH546738-Nb6 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Homo sapiens (human)

-
Macromolecule #1: Nb6

MacromoleculeName: Nb6 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 18.665906 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFAMA QVQLQESGGG LVQAGESLRL SCAASGTIFR LYDMGWYRRV SGNQRELVA SITSGGSTKY GDSVKGRFTI SRDNAKNTVY LQMSSLKPED TAVYYCNAEY RTGIWEELLD GWGQGTQVTV S SHHHHHHH H

-
Macromolecule #2: Soluble cytochrome b562,C-X-C chemokine receptor type 3,Kappa-typ...

MacromoleculeName: Soluble cytochrome b562,C-X-C chemokine receptor type 3,Kappa-type opioid receptor
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 56.327051 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MKTIIALSYI FCLVFADYKD DDDKGSADLE DNWETLNDNL KVIEKADNAA QVKDALTKMR AAALDAQKAT PPKLEDKSPD SPEMKDFRH GFDILVGQID DALKLANEGK VKEAQAAAEQ LKTTRNAYIQ KYLLVPRGSM VLEVSDHQVL NDAEVAALLE N FSSSYDYG ...String:
MKTIIALSYI FCLVFADYKD DDDKGSADLE DNWETLNDNL KVIEKADNAA QVKDALTKMR AAALDAQKAT PPKLEDKSPD SPEMKDFRH GFDILVGQID DALKLANEGK VKEAQAAAEQ LKTTRNAYIQ KYLLVPRGSM VLEVSDHQVL NDAEVAALLE N FSSSYDYG ENESDSCCTS PPCPQDFSLN FDRAFLPALY SLLFLLGLLG NGAVAAVLLS RRTALSSTDT FLLHLAVADT LL VLTLPLW AVDAAVQWVF GSGLCKVAGA LFNINFYAGA LLLACISFDR YLNIVHATQL YRRGPPARVT LTCLAVWGLC LLF ALPDFI FLSAHHDERL NATHCQYNFP QVGRTALRVL QLVAGFLLPL LVMAYCYAHI LARLKSVRLL SGSREKDRNL RRIT RLVVV VVVAFALCWT PYHLVVLVDI LMDLGALARN CGRESRVDVA KSVTSGLGYM HCCLNPLLYA FVGVKFRERM WMLLL RLGC PNQRGLQRQP SSSRRDSSWS ETS

UniProtKB: Soluble cytochrome b562, C-X-C chemokine receptor type 3, Kappa-type opioid receptor, C-X-C chemokine receptor type 3

-
Macromolecule #3: 3-azanyl-6-chloranyl-5-[(3S)-4-[1-[(4-chlorophenyl)methyl]piperid...

MacromoleculeName: 3-azanyl-6-chloranyl-5-[(3S)-4-[1-[(4-chlorophenyl)methyl]piperidin-4-yl]-3-ethyl-piperazin-1-yl]pyrazine-2-carboxamide
type: ligand / ID: 3 / Number of copies: 1 / Formula: 43I
Molecular weightTheoretical: 492.445 Da
Chemical component information

ChemComp-43I:
3-azanyl-6-chloranyl-5-[(3S)-4-[1-[(4-chlorophenyl)methyl]piperidin-4-yl]-3-ethyl-piperazin-1-yl]pyrazine-2-carboxamide

-
Macromolecule #4: CHOLESTEROL

MacromoleculeName: CHOLESTEROL / type: ligand / ID: 4 / Number of copies: 1 / Formula: CLR
Molecular weightTheoretical: 386.654 Da
Chemical component information

ChemComp-CLR:
CHOLESTEROL

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

Concentration5.0 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE / Chamber humidity: 100 %

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 53.43 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 105000
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

CTF correctionSoftware - Name: Gctf / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 509297
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: PROJECTION MATCHING
FSC plot (resolution estimation)

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more