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- EMDB-41890: Structure of AMD3100-bound CXCR4/Gi complex -

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Basic information

Entry
Database: EMDB / ID: EMD-41890
TitleStructure of AMD3100-bound CXCR4/Gi complex
Map data
Sample
  • Complex: AMD3100-bound CXCR4/Gi complex
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: C-X-C chemokine receptor type 4
  • Ligand: CHOLESTEROL
  • Ligand: Plerixafor
KeywordsGPCR / chemokine receptor / plerixafor / AMD3100 / SIGNALING PROTEIN
Function / homology
Function and homology information


C-X-C motif chemokine 12 receptor activity / positive regulation of macrophage migration inhibitory factor signaling pathway / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway / myosin light chain binding / myelin maintenance / C-X-C chemokine receptor activity / positive regulation of vasculature development / Signaling by ROBO receptors / regulation of chemotaxis ...C-X-C motif chemokine 12 receptor activity / positive regulation of macrophage migration inhibitory factor signaling pathway / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway / myosin light chain binding / myelin maintenance / C-X-C chemokine receptor activity / positive regulation of vasculature development / Signaling by ROBO receptors / regulation of chemotaxis / Formation of definitive endoderm / C-C chemokine receptor activity / C-C chemokine binding / Developmental Lineage of Pancreatic Acinar Cells / Chemokine receptors bind chemokines / anchoring junction / dendritic cell chemotaxis / cell leading edge / cellular response to cytokine stimulus / positive regulation of oligodendrocyte differentiation / Binding and entry of HIV virion / adenylate cyclase inhibitor activity / regulation of cell adhesion / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / coreceptor activity / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / neurogenesis / cellular response to forskolin / regulation of mitotic spindle organization / ubiquitin binding / cell chemotaxis / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / calcium-mediated signaling / G protein-coupled receptor activity / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / brain development / response to peptide hormone / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / response to virus / centriolar satellite / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / late endosome / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of cold-induced thermogenesis / actin binding / retina development in camera-type eye / G protein activity / virus receptor activity / positive regulation of cytosolic calcium ion concentration / GTPase binding / Ca2+ pathway / midbody / fibroblast proliferation
Similarity search - Function
CXC chemokine receptor 4 N-terminal domain / CXCR4 Chemokine receptor N terminal / CXC chemokine receptor 4/atypical chemokine receptor 2 / Chemokine receptor family / : / G-protein alpha subunit, group I / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. ...CXC chemokine receptor 4 N-terminal domain / CXCR4 Chemokine receptor N terminal / CXC chemokine receptor 4/atypical chemokine receptor 2 / Chemokine receptor family / : / G-protein alpha subunit, group I / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / 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) / 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 / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / C-X-C chemokine receptor type 4 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.15 Å
AuthorsSaotome K / McGoldrick LL / Franklin MC
Funding support United States, 1 items
OrganizationGrant numberCountry
Not funded United States
Citation
Journal: Nat Struct Mol Biol / Year: 2025
Title: Structural insights into CXCR4 modulation and oligomerization.
Authors: Kei Saotome / Luke L McGoldrick / Jo-Hao Ho / Trudy F Ramlall / Sweta Shah / Michael J Moore / Jee Hae Kim / Raymond Leidich / William C Olson / Matthew C Franklin /
Abstract: Activation of the chemokine receptor CXCR4 by its chemokine ligand CXCL12 regulates diverse cellular processes. Previously reported crystal structures of CXCR4 revealed the architecture of an ...Activation of the chemokine receptor CXCR4 by its chemokine ligand CXCL12 regulates diverse cellular processes. Previously reported crystal structures of CXCR4 revealed the architecture of an inactive, homodimeric receptor. However, many structural aspects of CXCR4 remain poorly understood. Here, we use cryo-electron microscopy to investigate various modes of human CXCR4 regulation. CXCL12 activates CXCR4 by inserting its N terminus deep into the CXCR4 orthosteric pocket. The binding of US Food and Drug Administration-approved antagonist AMD3100 is stabilized by electrostatic interactions with acidic residues in the seven-transmembrane-helix bundle. A potent antibody blocker, REGN7663, binds across the extracellular face of CXCR4 and inserts its complementarity-determining region H3 loop into the orthosteric pocket. Trimeric and tetrameric structures of CXCR4 reveal modes of G-protein-coupled receptor oligomerization. We show that CXCR4 adopts distinct subunit conformations in trimeric and tetrameric assemblies, highlighting how oligomerization could allosterically regulate chemokine receptor function.
#1: Journal: Biorxiv / Year: 2024
Title: Structural insights into CXCR4 modulation and oligomerization
Authors: Saotome K / McGoldrick LL / Ho J / Ramlall T / Shah S / Moore MJ / Kim JH / Leidich R / Olson WC / Franklin MC
History
DepositionSep 11, 2023-
Header (metadata) releaseMar 13, 2024-
Map releaseMar 13, 2024-
UpdateFeb 26, 2025-
Current statusFeb 26, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_41890.png

Downloads & links

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Map

FileDownload / File: emd_41890.map.gz / Format: CCP4 / Size: 103 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 300 pix.
= 255. Å		0.85 Å/pix.
x 300 pix.
= 255. Å		0.85 Å/pix.
x 300 pix.
= 255. Å

Surface

Projections

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Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.85 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.24
Minimum - Maximum-1.471339 - 2.1970646
Average (Standard dev.)-0.0004321916 (±0.045325294)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 255.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_41890_half_map_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

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Histogram (log scale)

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Half map: #2

Fileemd_41890_half_map_2.map
Projections & Slices
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Histogram (log scale)

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Sample components

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Entire : AMD3100-bound CXCR4/Gi complex

EntireName: AMD3100-bound CXCR4/Gi complex
Components
  • Complex: AMD3100-bound CXCR4/Gi complex
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: C-X-C chemokine receptor type 4
  • Ligand: CHOLESTEROL
  • Ligand: Plerixafor

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Supramolecule #1: AMD3100-bound CXCR4/Gi complex

SupramoleculeName: AMD3100-bound CXCR4/Gi complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Guanine nucleotide-binding protein G(i) subunit alpha-1

MacromoleculeName: Guanine nucleotide-binding protein G(i) subunit alpha-1
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 41.591312 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHGGG GSGCTLSAED KAAVERSKMI DRNLREDGEK AAREVKLLLL GAGESGKCTI VKQMKIIHEA GYSEEECKQY KAVVYSNTI QSIIAIIRAM GRLKIDFGDS ARADDARQLF VLAGAAEEGF MTAELAGVIK RLWKDSGVQA CFNRSREYQL N DSAAYYLN ...String:
MHHHHHHGGG GSGCTLSAED KAAVERSKMI DRNLREDGEK AAREVKLLLL GAGESGKCTI VKQMKIIHEA GYSEEECKQY KAVVYSNTI QSIIAIIRAM GRLKIDFGDS ARADDARQLF VLAGAAEEGF MTAELAGVIK RLWKDSGVQA CFNRSREYQL N DSAAYYLN DLDRIAQPNY IPTQQDVLRT RVKTTGIVET HFTFKDLHFK MFDVTAQRSE RKKWIHCFEG VTAIIFCVAL SD YDLVLAE DEEMNRMHAS MKLFDSICNN KWFTDTSIIL FLNKKDLFEE KIKKSPLTIC YPEYAGSNTY EEAAAYIQCQ FED LNKRKD TKEIYTHFTC STDTKNVQFV FDAVTDVIIK NNLKDCGLF

UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1

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Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.534062 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV ...String:
MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV TSSGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD IN AICFFPN GNAFATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAG HDNRVS CLGVTDDGMA VATGSWDSFL KIWN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #4: C-X-C chemokine receptor type 4

MacromoleculeName: C-X-C chemokine receptor type 4 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 71.063609 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MKTIIALSYI FCLVFAGAPE GISIYTSDNY TEEMGSGDYD SMKEPCFREE NANFNKIFLP TIYSIIFLTG IVGNGLVILV MGYQKKLRS MTDKYRLHLS VADLLFVITL PFWAVDAVAN WYFGNFLCKA VHVIYTVSLY SSVLILAFIS LDRYLAIVHA T NSQRPRKL ...String:
MKTIIALSYI FCLVFAGAPE GISIYTSDNY TEEMGSGDYD SMKEPCFREE NANFNKIFLP TIYSIIFLTG IVGNGLVILV MGYQKKLRS MTDKYRLHLS VADLLFVITL PFWAVDAVAN WYFGNFLCKA VHVIYTVSLY SSVLILAFIS LDRYLAIVHA T NSQRPRKL LAEKVVYVGV WIPALLLTIP DFIFANVSEA DDRYICDRFY PNDLWVVVFQ FQHIMVGLIL PGIVILSCYC II ISKLSHS KGHQKRKALK TTVILILAFF ACWLPYYIGI SIDSFILLEI IKQGCEFENT VHKWISITEA LAFFHCCLNP ILY AFLGAK FKTSAQHALT SVSRGSSLKI LSKGKRGGHS SVSTESESSS FHSSGRPLEV LFQGPGGGGS VSKGEELFTG VVPI LVELD GDVNGHKFSV SGEGEGDATY GKLTLKFICT TGKLPVPWPT LVTTLTYGVQ CFSRYPDHMK QHDFFKSAMP EGYVQ ERTI FFKDDGNYKT RAEVKFEGDT LVNRIELKGI DFKEDGNILG HKLEYNYNSH NVYIMADKQK NGIKVNFKIR HNIEDG SVQ LADHYQQNTP IGDGPVLLPD NHYLSTQSKL SKDPNEKRDH MVLLEFVTAA GITLGMDELY KDYKDDDDK

UniProtKB: C-X-C chemokine receptor type 4

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Macromolecule #5: CHOLESTEROL

MacromoleculeName: CHOLESTEROL / type: ligand / ID: 5 / Number of copies: 1 / Formula: CLR
Molecular weightTheoretical: 386.654 Da
Chemical component information

ChemComp-CLR:
CHOLESTEROL

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Macromolecule #6: Plerixafor

MacromoleculeName: Plerixafor / type: ligand / ID: 6 / Number of copies: 1 / Formula: VH6
Molecular weightTheoretical: 502.782 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.15 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 193216
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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