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Open data
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Basic information
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Title | Structure of REGN7663 Fab-bound CXCR4/Gi complex | |||||||||
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![]() | GPCR / chemokine receptor / antibody / Fab / SIGNALING PROTEIN-IMMUNE SYSTEM complex | |||||||||
Function / homology | ![]() C-X-C motif chemokine 12 receptor activity / regulation of viral process / positive regulation of vascular wound healing / positive regulation of macrophage migration inhibitory factor signaling pathway / neuron recognition / telencephalon cell migration / positive regulation of mesenchymal stem cell migration / response to tacrolimus / response to ultrasound / Specification of primordial germ cells ...C-X-C motif chemokine 12 receptor activity / regulation of viral process / positive regulation of vascular wound healing / positive regulation of macrophage migration inhibitory factor signaling pathway / neuron recognition / telencephalon cell migration / positive regulation of mesenchymal stem cell migration / response to tacrolimus / response to ultrasound / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway / myosin light chain binding / myelin maintenance / C-X-C chemokine receptor activity / regulation of programmed cell death / positive regulation of vasculature development / endothelial tube morphogenesis / endothelial cell differentiation / Signaling by ROBO receptors / regulation of chemotaxis / positive regulation of dendrite extension / Formation of definitive endoderm / C-C chemokine receptor activity / positive regulation of chemotaxis / Developmental Lineage of Pancreatic Acinar Cells / C-C chemokine binding / Chemokine receptors bind chemokines / anchoring junction / dendritic cell chemotaxis / epithelial cell development / cellular response to cytokine stimulus / small molecule binding / cell leading edge / detection of temperature stimulus involved in sensory perception of pain / positive regulation of oligodendrocyte differentiation / regulation of calcium ion transport / Binding and entry of HIV virion / detection of mechanical stimulus involved in sensory perception of pain / regulation of cell adhesion / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / coreceptor activity / D2 dopamine receptor binding / cardiac muscle contraction / 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 / response to activity / cell chemotaxis / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / calcium-mediated signaling / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / G protein-coupled receptor activity / brain development / response to virus / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to peptide hormone / G-protein beta/gamma-subunit complex binding / 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 / neuron migration / 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 / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / 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 / GPER1 signaling / late endosome / Inactivation, recovery and regulation of the phototransduction cascade Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.36 Å | |||||||||
![]() | Saotome K / McGoldrick LL / Franklin MC | |||||||||
Funding support | ![]()
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![]() | ![]() 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: ![]() 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 |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 168.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 25.9 KB 25.9 KB | Display Display | ![]() |
Images | ![]() | 76 KB | ||
Filedesc metadata | ![]() | 7.6 KB | ||
Others | ![]() ![]() | 165.3 MB 165.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 14.9 KB | Display | |
Data in CIF | ![]() | 17.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8u4qMC ![]() 8u4nC ![]() 8u4oC ![]() 8u4pC ![]() 8u4rC ![]() 8u4sC ![]() 8u4tC C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.85 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_41891_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_41891_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : REGN7663 Fab-bound CXCR4/Gi complex
Entire | Name: REGN7663 Fab-bound CXCR4/Gi complex |
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Components |
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-Supramolecule #1: REGN7663 Fab-bound CXCR4/Gi complex
Supramolecule | Name: REGN7663 Fab-bound CXCR4/Gi complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: REGN7663 Fab light chain
Macromolecule | Name: REGN7663 Fab light chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 24.185904 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DVVMTQSPLS LPVTLGQPAS ISCRSSQSLV YTDGNTYLNW FQQRPGQSPR RLIYKVSNRD SGVPDRFSGS GSGTDFTLKI SRVEAEDVG FYYCMQNTHW PLTFGGGTKV EIKRTVAAPS VFIFPPSDEQ LKSGTASVVC LLNNFYPREA KVQWKVDNAL Q SGNSQESV ...String: DVVMTQSPLS LPVTLGQPAS ISCRSSQSLV YTDGNTYLNW FQQRPGQSPR RLIYKVSNRD SGVPDRFSGS GSGTDFTLKI SRVEAEDVG FYYCMQNTHW PLTFGGGTKV EIKRTVAAPS VFIFPPSDEQ LKSGTASVVC LLNNFYPREA KVQWKVDNAL Q SGNSQESV TEQDSKDSTY SLSSTLTLSK ADYEKHKVYA CEVTHQGLSS PVTKSFNRGE C |
-Macromolecule #2: REGN7663 Fab heavy chain
Macromolecule | Name: REGN7663 Fab heavy chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 25.799934 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: QVQLVQSGAE VKKPGASVKV SCKASGYTFT SYGISWVRQA PGQGIEWMGW ISTYNGNRNY AQKVQGRVTM TTDRSTSTAY MDLRSLRSD DTAVYYCARH GITGARNYYY HYGMDVWGQG TTVTVSSAST KGPSVFPLAP CSRSTSESTA ALGCLVKDYF P EPVTVSWN ...String: QVQLVQSGAE VKKPGASVKV SCKASGYTFT SYGISWVRQA PGQGIEWMGW ISTYNGNRNY AQKVQGRVTM TTDRSTSTAY MDLRSLRSD DTAVYYCARH GITGARNYYY HYGMDVWGQG TTVTVSSAST KGPSVFPLAP CSRSTSESTA ALGCLVKDYF P EPVTVSWN SGALTSGVHT FPAVLQSSGL YSLSSVVTVP SSSLGTKTYT CNVDHKPSNT KVDKRVESKY GPPCPPCPAP PV |
-Macromolecule #3: C-X-C chemokine receptor type 4
Macromolecule | Name: C-X-C chemokine receptor type 4 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 71.063609 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 |
-Macromolecule #4: Guanine nucleotide-binding protein G(i) subunit alpha-1
Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 41.591312 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 |
-Macromolecule #5: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 38.534062 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 |
-Macromolecule #6: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #7: CHOLESTEROL
Macromolecule | Name: CHOLESTEROL / type: ligand / ID: 7 / Number of copies: 1 / Formula: CLR |
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Molecular weight | Theoretical: 386.654 Da |
Chemical component information | ![]() ChemComp-CLR: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination 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 model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.36 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 148703 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |