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- EMDB-39820: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 mol... -
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Open data
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Basic information
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Title | Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules | |||||||||
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![]() | HIV-1 / CRF_07BC / Env / CD4 / VIRUS | |||||||||
Function / homology | ![]() helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / MHC class II protein binding / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of kinase activity / positive regulation of monocyte differentiation ...helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / MHC class II protein binding / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of kinase activity / positive regulation of monocyte differentiation / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / extracellular matrix structural constituent / T cell receptor complex / Other interleukin signaling / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / regulation of calcium ion transport / macrophage differentiation / Generation of second messenger molecules / T cell differentiation / Co-inhibition by PD-1 / positive regulation of protein kinase activity / Binding and entry of HIV virion / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / host cell endosome membrane / protein tyrosine kinase binding / T cell activation / Vpu mediated degradation of CD4 / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / positive regulation of T cell activation / cell surface receptor protein tyrosine kinase signaling pathway / positive regulation of peptidyl-tyrosine phosphorylation / transmembrane signaling receptor activity / MHC class II protein complex binding / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / signaling receptor activity / Clathrin-mediated endocytosis / virus receptor activity / defense response to Gram-negative bacterium / positive regulation of canonical NF-kappaB signal transduction / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of MAPK cascade / positive regulation of ERK1 and ERK2 cascade / positive regulation of protein phosphorylation / early endosome / positive regulation of viral entry into host cell / cell surface receptor signaling pathway / viral protein processing / cell adhesion / immune response / membrane raft / endoplasmic reticulum lumen / external side of plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / lipid binding / : / viral envelope / endoplasmic reticulum membrane / protein kinase binding / positive regulation of DNA-templated transcription / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.58 Å | |||||||||
![]() | Li D / Wang T | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Intermediate open state of CD4-bound HIV-1 env heterotrimers in asia CRFs. Authors: Dan Li / Li Liu / Xuejun Ye / Yuyang Chen / Qiaoju Ren / ShaoJian Xu / Yan Ren / He Cao / Tao Wang / ![]() Abstract: The HIV-1 envelope glycoprotein (Env) plays crucial role in viral infection by facilitating viral attachment to host cells and inducing fusion of the virus with the host cell membrane. This fusion ...The HIV-1 envelope glycoprotein (Env) plays crucial role in viral infection by facilitating viral attachment to host cells and inducing fusion of the virus with the host cell membrane. This fusion allows the HIV-1 viral genome to enter the target cell then triggering various stages of the viral life cycle. The native Env directly interacts with the main receptor CD4 and the co-receptor (CCR5 or CXCR4) in human cell membrane then induces membrane fusion. The elucidation of the structure of Env with CD4 and co-receptors in different HIV-1 subtypes is essential for the understanding of the mechanism of virus entry. Here we report the Cryo-EM structure of the CD4-bound HIV-1 heterotrimeric Env from Asia prevalent CRF07_BC CH119 strain. In this structure, the binding of three CD4 molecules with Env induced extensively conformational changes in gp120, resulting in the transformation of the Env from close state to intermediate open state. Additionally, the conformational shift of V1/V2 loops of the heterotrimeric Env allosterically expose the V3 loop and promoting the further interactions with co-receptor CCR5 or CXCR4. These findings not only illustrate the structural complexity and plasticity of HIV-1 Env but also give new insights how the biological trimeric Env initialize the immune recognition and membrane fusion. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 450.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 19.1 KB 19.1 KB | Display Display | ![]() |
Images | ![]() | 23.3 KB | ||
Filedesc metadata | ![]() | 6.4 KB | ||
Others | ![]() ![]() | 441.9 MB 441.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 976.5 KB | Display | ![]() |
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Full document | ![]() | 976.1 KB | Display | |
Data in XML | ![]() | 18.2 KB | Display | |
Data in CIF | ![]() | 21.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8z7nMC M: atomic model generated by this map C: citing same article ( |
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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: 0.83 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_39820_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_39820_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 mol...
Entire | Name: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules |
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Components |
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-Supramolecule #1: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 mol...
Supramolecule | Name: Structure of HIV-1 CH119 SOSIP.664 trimer in complex with CD4 molecules type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Envelope glycoprotein gp160
Macromolecule | Name: Envelope glycoprotein gp160 / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 58.258125 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MDAMKRGLCC VLLLCGAVFV SPSQEIHARF RRGARAVGNL WVTVYYGVPV WKEATTTLFC ASDAKAYDTE VHNVWATHAC VPTDPSPQE LVLENVTENF NMWKNEMVNQ MHEDVISLWD QSLKPCVKLT PLCVTLECSK VSNNETDKYN GTEEMKNCSF N ATTVVRDR ...String: MDAMKRGLCC VLLLCGAVFV SPSQEIHARF RRGARAVGNL WVTVYYGVPV WKEATTTLFC ASDAKAYDTE VHNVWATHAC VPTDPSPQE LVLENVTENF NMWKNEMVNQ MHEDVISLWD QSLKPCVKLT PLCVTLECSK VSNNETDKYN GTEEMKNCSF N ATTVVRDR QQKVYALFYR LDIVPLTEKN SSENSSKYYR LINCNTSAIT QACPKVSFEP IPIHYCTPAG YAILKCNDKT FN GTGPCHN VSTVQCTHGI KPVVSTQLLL NGSLAEGEII IRSENLTNNV KTILVHLNQS VEIVCTRPNN NTRKSIRIGP GQT FYATGD IIGDIRQAHC NISKWHETLK RVSEKLAEHF PNKTINFTSS SGGDLEITTH SFTCRGEFFY CNTSGLFNST YMPN GTYLH GDTNSNSSIT IPCRIKQIIN MWQEVGRAMY APPIEGNITC KSNITGLLLV RDGGTESNNT ETNNTEIFRP GGGDM RDNW RSELYKYKVV EIKPLGVAPT ACKRRVVERR RRRR UniProtKB: Envelope glycoprotein gp160 |
-Macromolecule #2: Envelope glycoprotein gp160
Macromolecule | Name: Envelope glycoprotein gp160 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 18.285703 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: AVGIGAVFLG FLGVAGSTMG AASMTLTVQA RQLLSGIVQQ QSNLLRAPEA QQHLLQLTVW GIKQLQTRVL AIERYLKDQQ LLGIWGCSG KLICCTAVPW NSSWSNKSQK EIWDNMTWMQ WDKEISNYTN TIYKLLEDSQ NQQESNEKDL LALDGGGGGH H HHHH UniProtKB: Envelope glycoprotein gp160 |
-Macromolecule #3: T-cell surface glycoprotein CD4
Macromolecule | Name: T-cell surface glycoprotein CD4 / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 44.67532 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MNRGVPFRHL LLVLQLALLP AATQGKKVVL GKKGDTVELT CTASQKKSIQ FHWKNSNQIK ILGNQGSFLT KGPSKLNDRA DSRRSLWDQ GNFPLIIKNL KIEDSDTYIC EVEDQKEEVQ LLVFGLTANS DTHLLQGQSL TLTLESPPGS SPSVQCRSPR G KNIQGGKT ...String: MNRGVPFRHL LLVLQLALLP AATQGKKVVL GKKGDTVELT CTASQKKSIQ FHWKNSNQIK ILGNQGSFLT KGPSKLNDRA DSRRSLWDQ GNFPLIIKNL KIEDSDTYIC EVEDQKEEVQ LLVFGLTANS DTHLLQGQSL TLTLESPPGS SPSVQCRSPR G KNIQGGKT LSVSQLELQD SGTWTCTVLQ NQKKVEFKID IVVLAFQKAS SIVYKKEGEQ VEFSFPLAFT VEKLTGSGEL WW QAERASS SKSWITFDLK NKEVSVKRVT QDPKLQMGKK LPLHLTLPQA LPQYAGSGNL TLALEAKTGK LHQEVNLVVM RAT QLQKNL TCEVWGPTSP KLMLSLKLEN KEAKVSKREK AVWVLNPEAG MWQCLLSDSG QVLLESNIKV LPTWSTGSGH HHHH H UniProtKB: T-cell surface glycoprotein CD4 |
-Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 18 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 1 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.0 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 | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.58 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 1045667 |
Initial angle assignment | Type: RANDOM ASSIGNMENT |
Final angle assignment | Type: PROJECTION MATCHING |