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- EMDB-33479: Cryo-EM structure of LPS-bound GPR174 in complex with Gs protein -

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Basic information

Entry
Database: EMDB / ID: EMD-33479
TitleCryo-EM structure of LPS-bound GPR174 in complex with Gs protein
Map data
Sample
  • Complex: GPR174/Gs complex
    • Protein or peptide: Probable G-protein coupled receptor 174
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Engineered G protein subunit S (mini-Gs)
    • Protein or peptide: Nb35
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
  • Ligand: (2~{S})-2-$l^{4}-azanyl-3-[[(2~{R})-3-octadecanoyloxy-2-oxidanyl-propoxy]-oxidanyl-oxidanylidene-$l^{6}-phosphanyl]oxy-propanoic acid
  • Ligand: water
Function / homology
Function and homology information


bioactive lipid receptor activity / positive regulation of Rho protein signal transduction / T cell homeostasis / centriolar satellite / G protein-coupled receptor activity / 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 ...bioactive lipid receptor activity / positive regulation of Rho protein signal transduction / T cell homeostasis / centriolar satellite / G protein-coupled receptor activity / 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 activation / G protein-coupled acetylcholine receptor signaling pathway / 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 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / 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) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / intracellular membrane-bounded organelle / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
: / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit ...: / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / 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. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
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 / Probable G-protein coupled receptor 174
Similarity search - Component
Biological speciesHomo sapiens (human) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.76 Å
AuthorsHe Y / Liang J
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32070048 China
CitationJournal: Nat Commun / Year: 2023
Title: Structural basis of lysophosphatidylserine receptor GPR174 ligand recognition and activation.
Authors: Jiale Liang / Asuka Inoue / Tatsuya Ikuta / Ruixue Xia / Na Wang / Kouki Kawakami / Zhenmei Xu / Yu Qian / Xinyan Zhu / Anqi Zhang / Changyou Guo / Zhiwei Huang / Yuanzheng He /
Abstract: Lysophosphatidylserine (LysoPS) is a lipid mediator that induces multiple cellular responses through binding to GPR174. Here, we present the cryo-electron microscopy (cryo-EM) structure of LysoPS- ...Lysophosphatidylserine (LysoPS) is a lipid mediator that induces multiple cellular responses through binding to GPR174. Here, we present the cryo-electron microscopy (cryo-EM) structure of LysoPS-bound human GPR174 in complex with G protein. The structure reveals a ligand recognition mode, including the negatively charged head group of LysoPS forms extensive polar interactions with surrounding key residues of the ligand binding pocket, and the L-serine moiety buries deeply into a positive charged cavity in the pocket. In addition, the structure unveils a partially open pocket on transmembrane domain helix (TM) 4 and 5 for a lateral entry of ligand. Finally, the structure reveals a G engaging mode featured by a deep insertion of a helix 5 (αH5) and extensive polar interactions between receptor and αH5. Taken together, the information revealed by our structural study provides a framework for understanding LysoPS signaling and a rational basis for designing LysoPS receptor-targeting drugs.
History
DepositionMay 20, 2022-
Header (metadata) releaseFeb 15, 2023-
Map releaseFeb 15, 2023-
UpdateMar 8, 2023-
Current statusMar 8, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_33479.png

Downloads & links

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Map

FileDownload / File: emd_33479.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.1 Å
Density
Contour LevelBy AUTHOR: 0.6
Minimum - Maximum-6.488641 - 8.826551
Average (Standard dev.)-0.0016791243 (±0.1706933)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 281.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_33479_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_33479_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : GPR174/Gs complex

EntireName: GPR174/Gs complex
Components
  • Complex: GPR174/Gs complex
    • Protein or peptide: Probable G-protein coupled receptor 174
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Engineered G protein subunit S (mini-Gs)
    • Protein or peptide: Nb35
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
  • Ligand: (2~{S})-2-$l^{4}-azanyl-3-[[(2~{R})-3-octadecanoyloxy-2-oxidanyl-propoxy]-oxidanyl-oxidanylidene-$l^{6}-phosphanyl]oxy-propanoic acid
  • Ligand: water

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Supramolecule #1: GPR174/Gs complex

SupramoleculeName: GPR174/Gs complex / type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Probable G-protein coupled receptor 174

MacromoleculeName: Probable G-protein coupled receptor 174 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.539527 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MPANYTCTRP DGDNTDFRYF IYAVTYTVIL VPGLIGNILA LWVFYGYMKE TKRAVIFMIN LAIADLLQVL SLPLRIFYYL NHDWPFGPG LCMFCFYLKY VNMYASIYFL VCISVRRFWF LMYPFRFHDC KQKYDLYISI AGWLIICLAC VLFPLLRTSD D TSGNRTKC ...String:
MPANYTCTRP DGDNTDFRYF IYAVTYTVIL VPGLIGNILA LWVFYGYMKE TKRAVIFMIN LAIADLLQVL SLPLRIFYYL NHDWPFGPG LCMFCFYLKY VNMYASIYFL VCISVRRFWF LMYPFRFHDC KQKYDLYISI AGWLIICLAC VLFPLLRTSD D TSGNRTKC FVDLPTRNVN LAQSVVMMTI GELIGFVTPL LIVLYCTWKT VLSLQDKYPM AQDLGEKQKA LKMILTCAGV FL ICFAPYH FSFPLDFLVK SNEIKSCLAR RVILIFHSVA LCLASLNSCL DPVIYYFSTN EFRRRLSRQD LHDSIQLHAK SFV SNHTAS TMTPELC

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Macromolecule #2: 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: 2 / 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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Macromolecule #3: Engineered G protein subunit S (mini-Gs)

MacromoleculeName: Engineered G protein subunit S (mini-Gs) / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 41.879465 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RATHRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RATHRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTSGIFETK FQVDKVNFHM FDVGAQRDER RKWIQCFNDV TAIIFVVDSS DYNRLQEALN DF KSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED YFPEFARYTT PEDATPEPGE DPRVTRAKYF IRDEFLRIST ASG DGRHYC YPHFTCSVDT ENARRIFNDC RDIIQRMHLR QYELL

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Macromolecule #4: Nb35

MacromoleculeName: Nb35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 17.381584 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MKYLLPTAAA GLLLLAAQPA MAQVQLQESG GGLVQPGGSL RLSCAASGFT FSNYKMNWVR QAPGKGLEWV SDISQSGASI SYTGSVKGR FTISRDNAKN TLYLQMNSLK PEDTAVYYCA RCPAPFTRDC FDVTSTTYAY RGQGTQVTVS SAAALEHHHH H H

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Macromolecule #5: 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: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.915496 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...String:
MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWN

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Macromolecule #6: (2~{S})-2-$l^{4}-azanyl-3-[[(2~{R})-3-octadecanoyloxy-2-oxidanyl-...

MacromoleculeName: (2~{S})-2-$l^{4}-azanyl-3-[[(2~{R})-3-octadecanoyloxy-2-oxidanyl-propoxy]-oxidanyl-oxidanylidene-$l^{6}-phosphanyl]oxy-propanoic acid
type: ligand / ID: 6 / Number of copies: 1 / Formula: WJS
Molecular weightTheoretical: 497.391 Da
Chemical component information

ChemComp-WJS:
(2~{S})-2-$l^{4}-azanyl-3-[[(2~{R})-3-octadecanoyloxy-2-oxidanyl-propoxy]-oxidanyl-oxidanylidene-$l^{6}-phosphanyl]oxy-propanoic acid

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Macromolecule #7: water

MacromoleculeName: water / type: ligand / ID: 7 / Number of copies: 2 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER / Water

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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
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 60.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.76 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 320000
FSC plot (resolution estimation)

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