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Yorodumi- EMDB-60980: Structural basis of the cysteinyl leukotriene receptor type 2 act... -
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Basic information
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| Title | Structural basis of the cysteinyl leukotriene receptor type 2 activation by LTD4 | |||||||||
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Keywords | GPCR / CysLT2R / LTD4 / MEMBRANE PROTEIN/IMMUNE SYSTEM / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationcysteinyl leukotriene receptor activity / leukotriene receptor activity / Leukotriene receptors / LTC4-CYSLTR mediated IL4 production / G protein-coupled peptide receptor activity / neuropeptide signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors ...cysteinyl leukotriene receptor activity / leukotriene receptor activity / Leukotriene receptors / LTC4-CYSLTR mediated IL4 production / G protein-coupled peptide receptor activity / neuropeptide 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / 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 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / 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 / 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) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / immune response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.15 Å | |||||||||
Authors | Jiang M / Xu Y / Yin W | |||||||||
| Funding support | China, 1 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2025Title: Structural basis of the cysteinyl leukotriene receptor type 2 activation by LTD4. Authors: Mengting Jiang / Youwei Xu / Xiaodong Luan / Kai Wu / Zhen Li / H Eric Xu / Shuyang Zhang / Yi Jiang / Wanchao Yin / ![]() Abstract: The G protein-coupled cysteinyl leukotriene receptor CysLT2R plays intricate roles in the physiology and pathogenesis of inflammation-related processes. It has garnered increasing attention as a ...The G protein-coupled cysteinyl leukotriene receptor CysLT2R plays intricate roles in the physiology and pathogenesis of inflammation-related processes. It has garnered increasing attention as a potential therapeutic target for atopic asthma, brain injury, central nervous system disorders, and various types of cancer. In this study, we present the cryo-electron microscopy structure of the cysteinyl leukotriene D4 (LTD4)-bound human CysLT2R in complex with a Gα protein, adopting an active conformation at a resolution of 3.15 Å. The structure elucidates a spacious polar pocket designed to accommodate the two branched negative ends of LTD4 and reveals a lateral ligand access route into the orthosteric pocket located on transmembrane domain helix (TM) 4 and 5. Furthermore, our findings highlight the crucial role of transmembrane domain helix 3 in sensing agonist moieties, representing the pivotal mechanism of receptor activation for both CysLT1R and CysLT2R. Collectively, the insights derived from our structural investigation establish a foundation for comprehending CysLT2R activation by its endogenous ligand LTD4, offering a rational basis for the design of drugs targeting CysLT2R. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_60980.map.gz | 60 MB | EMDB map data format | |
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| Header (meta data) | emd-60980-v30.xml emd-60980.xml | 24 KB 24 KB | Display Display | EMDB header |
| Images | emd_60980.png | 36.5 KB | ||
| Filedesc metadata | emd-60980.cif.gz | 6.9 KB | ||
| Others | emd_60980_additional_1.map.gz emd_60980_half_map_1.map.gz emd_60980_half_map_2.map.gz | 49.2 MB 49.5 MB 49.6 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-60980 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-60980 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9ixxMC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_60980.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.824 Å | ||||||||||||||||||||||||||||||||||||
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Additional map: #1
| File | emd_60980_additional_1.map | ||||||||||||
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-Half map: #2
| File | emd_60980_half_map_1.map | ||||||||||||
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-Half map: #1
| File | emd_60980_half_map_2.map | ||||||||||||
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Sample components
-Entire : Structure of LTD4-CysLT2R G protein complex
| Entire | Name: Structure of LTD4-CysLT2R G protein complex |
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| Components |
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-Supramolecule #1: Structure of LTD4-CysLT2R G protein complex
| Supramolecule | Name: Structure of LTD4-CysLT2R G protein complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: G-alpha q
| Macromolecule | Name: G-alpha q / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 41.724383 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RRTLRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RRTLRLLLLG 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 IRKEFVDIST ASG DGRHIC YPHFTCSVDT ENARRIFNDC KDIILQMNLR EYNLV |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 38.744371 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MHHHHHHGSL LQSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI ...String: MHHHHHHGSL LQSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI VTSSGDTTCA LWDIETGQQT TTFTGHTGDV MSLSLAPDTR LFVSGACDAS AKLWDVREGM CRQTFTGHES DI NAICFFP NGNAFATGSD DATCRLFDLR ADQELMTYSH DNIICGITSV SFSKSGRLLL AGYDDFNCNV WDALKADRAG VLA GHDNRV SCLGVTDDGM AVATGSWDSF LKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: scFv16
| Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 26.408492 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SAGGGGSGGG GSGGGGSADI VMTQATSSVP VTPGESVSIS C RSSKSLLH ...String: MVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SAGGGGSGGG GSGGGGSADI VMTQATSSVP VTPGESVSIS C RSSKSLLH SNGNTYLYWF LQRPGQSPQL LIYRMSNLAS GVPDRFSGSG SGTAFTLTIS RLEAEDVGVY YCMQHLEYPL TF GAGTKLE L |
-Macromolecule #4: 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: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 7.861143 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| 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 #5: Cysteinyl leukotriene receptor 2
| Macromolecule | Name: Cysteinyl leukotriene receptor 2 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 38.506773 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MERKFMSLQP SISVSEMEPN GTFSNNNSRN CTIENFKREF FPIVYLIIFF WGVLGNGLSI YVFLQPYKKS TSVNVFMLNL AISDLLFIS TLPFRADYYL RGSNWIFGDL ACRIMSYSLY VNMYSSIYFL TVLSVVRFLA MVHPFRLLHV TSIRSAWILC G IIWILIMA ...String: MERKFMSLQP SISVSEMEPN GTFSNNNSRN CTIENFKREF FPIVYLIIFF WGVLGNGLSI YVFLQPYKKS TSVNVFMLNL AISDLLFIS TLPFRADYYL RGSNWIFGDL ACRIMSYSLY VNMYSSIYFL TVLSVVRFLA MVHPFRLLHV TSIRSAWILC G IIWILIMA SSIMLLDSGS EQNGSVTSCL ELNLYKIAKL QTMNYIALVV GCLLPFFTLS ICYLLIIRVL LKVEVPESGL RV SHRKALT TIIITLIIFF LCFLPYHTLR TVHLTTWKVG LCKDRLHKAL VITLALAAAN ACFNPLLYYF AGENFKDRLK SAL RKGHPQ KAKTKCVFPV S UniProtKB: Cysteinyl leukotriene receptor 2 |
-Macromolecule #6: (5~{S},6~{R},7~{E},9~{E},11~{Z},14~{Z})-6-[(2~{R})-2-azanyl-3-(2-...
| Macromolecule | Name: (5~{S},6~{R},7~{E},9~{E},11~{Z},14~{Z})-6-[(2~{R})-2-azanyl-3-(2-hydroxy-2-oxoethylamino)-3-oxidanylidene-propyl]sulfanyl-5-oxidanyl-icosa-7,9,11,14-tetraenoic acid type: ligand / ID: 6 / Number of copies: 1 / Formula: LTD |
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| Molecular weight | Theoretical: 496.66 Da |
| Chemical component information | ![]() ChemComp-LTD: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| 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: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 5.0 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: PDB ENTRY PDB model - PDB ID: |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.15 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 391827 |
| Initial angle assignment | Type: ANGULAR RECONSTITUTION |
| Final angle assignment | Type: ANGULAR RECONSTITUTION |
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Keywords
Homo sapiens (human)
Authors
China, 1 items
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Trichoplusia ni (cabbage looper)
FIELD EMISSION GUN

