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- EMDB-31424: Cryo-EM structure of the apo chemokine receptor CCR5 in complex w... -

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Basic information

Entry
Database: EMDB / ID: EMD-31424
TitleCryo-EM structure of the apo chemokine receptor CCR5 in complex with Gi
Map data
Sample
  • Complex: Chemokine receptor CCR5 in complex with Gi
    • Protein or peptide: C-C chemokine receptor type 5
    • 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
Function / homology
Function and homology information


chemokine (C-C motif) ligand 5 binding / negative regulation of macrophage apoptotic process / signaling / chemokine receptor activity / C-C chemokine receptor activity / C-C chemokine binding / phosphatidylinositol phospholipase C activity / response to cholesterol / Chemokine receptors bind chemokines / dendritic cell chemotaxis ...chemokine (C-C motif) ligand 5 binding / negative regulation of macrophage apoptotic process / signaling / chemokine receptor activity / C-C chemokine receptor activity / C-C chemokine binding / phosphatidylinositol phospholipase C activity / response to cholesterol / Chemokine receptors bind chemokines / dendritic cell chemotaxis / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Interleukin-10 signaling / T cell migration / D2 dopamine receptor binding / Binding and entry of HIV virion / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / cellular defense response / regulation of cAMP-mediated signaling / coreceptor activity / G protein-coupled serotonin receptor binding / cellular response to forskolin / regulation of mitotic spindle organization / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / cell chemotaxis / Regulation of insulin secretion / G protein-coupled receptor binding / calcium-mediated signaling / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / response to peptide hormone / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / chemotaxis / calcium ion transport / GPER1 signaling / GDP binding / cellular response to prostaglandin E stimulus / MAPK cascade / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / cell-cell signaling / GTPase binding / retina development in camera-type eye / virus receptor activity / Ca2+ pathway / actin binding / cell cortex / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / cellular response to lipopolysaccharide / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / cell surface receptor signaling pathway / endosome / inflammatory response / immune response / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / external side of plasma membrane
Similarity search - Function
CC chemokine receptor 5 / 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 ...CC chemokine receptor 5 / 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 / 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. / WD domain, G-beta repeat / 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
C-C chemokine receptor type 5 / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / 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: 2.8 Å
AuthorsZhang H / Chen K / Tan Q / Han S / Zhu Y / Zhao Q / Wu B
Funding support China, 2 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31730027 China
National Natural Science Foundation of China (NSFC)31825010 China
CitationJournal: Nat Commun / Year: 2021
Title: Structural basis for chemokine recognition and receptor activation of chemokine receptor CCR5.
Authors: Hui Zhang / Kun Chen / Qiuxiang Tan / Qiang Shao / Shuo Han / Chenhui Zhang / Cuiying Yi / Xiaojing Chu / Ya Zhu / Yechun Xu / Qiang Zhao / Beili Wu /
Abstract: The chemokine receptor CCR5 plays a vital role in immune surveillance and inflammation. However, molecular details that govern its endogenous chemokine recognition and receptor activation remain ...The chemokine receptor CCR5 plays a vital role in immune surveillance and inflammation. However, molecular details that govern its endogenous chemokine recognition and receptor activation remain elusive. Here we report three cryo-electron microscopy structures of G protein-coupled CCR5 in a ligand-free state and in complex with the chemokine MIP-1α or RANTES, as well as the crystal structure of MIP-1α-bound CCR5. These structures reveal distinct binding modes of the two chemokines and a specific accommodate pattern of the chemokine for the distal N terminus of CCR5. Together with functional data, the structures demonstrate that chemokine-induced rearrangement of toggle switch and plasticity of the receptor extracellular region are critical for receptor activation, while a conserved tryptophan residue in helix II acts as a trigger of receptor constitutive activation.
History
DepositionJun 9, 2021-
Header (metadata) releaseJul 14, 2021-
Map releaseJul 14, 2021-
UpdateJul 28, 2021-
Current statusJul 28, 2021Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.452
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.452
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7f1s
  • Surface level: 0.452
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_31424.png

Downloads & links

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Map

FileDownload / File: emd_31424.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 256 pix.
= 267.52 Å		1.05 Å/pix.
x 256 pix.
= 267.52 Å		1.05 Å/pix.
x 256 pix.
= 267.52 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.045 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.452 / Movie #1: 0.452
Minimum - Maximum-0.9820672 - 2.0304625
Average (Standard dev.)-0.00048329742 (±0.043763917)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 267.52 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0451.0451.045
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z267.520267.520267.520
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ400400400
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-0.9822.030-0.000

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Supplemental data

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Sample components

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Entire : Chemokine receptor CCR5 in complex with Gi

EntireName: Chemokine receptor CCR5 in complex with Gi
Components
  • Complex: Chemokine receptor CCR5 in complex with Gi
    • Protein or peptide: C-C chemokine receptor type 5
    • 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

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Supramolecule #1: Chemokine receptor CCR5 in complex with Gi

SupramoleculeName: Chemokine receptor CCR5 in complex with Gi / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)

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Macromolecule #1: C-C chemokine receptor type 5

MacromoleculeName: C-C chemokine receptor type 5 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 42.028129 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: GAPDYQVSSP IYDINYYTSE PCQKINVKQI AARLLPPLYS LVFIFGFVGN MLVILILINC KRLKSMTDIY LLNLAISDLF FLLTVPFWA HYAAAQWDFG NTMCQLLTGL YFIGFFSGIF FIILLTIDRY LAVVHAVFAL KARTVTFGVV TSVITWVVAV F ASLPNIIF ...String:
GAPDYQVSSP IYDINYYTSE PCQKINVKQI AARLLPPLYS LVFIFGFVGN MLVILILINC KRLKSMTDIY LLNLAISDLF FLLTVPFWA HYAAAQWDFG NTMCQLLTGL YFIGFFSGIF FIILLTIDRY LAVVHAVFAL KARTVTFGVV TSVITWVVAV F ASLPNIIF TRSQKEGLHY TCSSHFPYSQ YQFWKNFQTL KIVILGLVLP LLVMVICYSG ILKTLLRCRN EKKRHRAVRL IF TIMIVYF LFWAPYNIVL LLNTFQEFFG LNNCSSSNRL DQAMQVTETL GMTHCCINPI IYAFVGEKFR NYLLVFFQKH IAK RLEVLF QGPGSWSHPQ FEKGSGAGAS AGSWSHPQFE KGSDYKDDDD K

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Macromolecule #2: Guanine nucleotide-binding protein G(i) subunit alpha-1

MacromoleculeName: Guanine nucleotide-binding protein G(i) subunit alpha-1
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.447141 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKCTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKCTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVTAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF

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Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.41693 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...String:
MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN

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Macromolecule #4: 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: 4 / 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

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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

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 2.1875 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 5511331
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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