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- EMDB-24899: CryoEM structure of Gi-coupled MRGPRX2 with small molecule agonis... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-24899 | |||||||||
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Title | CryoEM structure of Gi-coupled MRGPRX2 with small molecule agonist (R)-Zinc-3573 | |||||||||
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Function / homology | ![]() mast cell secretagogue receptor activity / mast cell activation / sleep / neuropeptide binding / mast cell degranulation / positive regulation of cytokinesis / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding ...mast cell secretagogue receptor activity / mast cell activation / sleep / neuropeptide binding / mast cell degranulation / positive regulation of cytokinesis / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / sensory perception of pain / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor activity / G protein-coupled receptor binding / electron transport chain / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / response to peptide hormone / 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 / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / GDP binding / 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) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / periplasmic space / electron transfer activity / iron ion binding / G protein-coupled receptor signaling pathway / cell cycle / cell division / lysosomal membrane / GTPase activity / centrosome / synapse / heme binding / protein-containing complex binding / nucleolus / GTP binding / magnesium ion binding / signal transduction / extracellular exosome / nucleoplasm / membrane / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.58 Å | |||||||||
![]() | Cao C / Fay JF / Gumpper RH / Roth BL | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure, function and pharmacology of human itch GPCRs. Authors: Can Cao / Hye Jin Kang / Isha Singh / He Chen / Chengwei Zhang / Wenlei Ye / Byron W Hayes / Jing Liu / Ryan H Gumpper / Brian J Bender / Samuel T Slocum / Brian E Krumm / Katherine Lansu / ...Authors: Can Cao / Hye Jin Kang / Isha Singh / He Chen / Chengwei Zhang / Wenlei Ye / Byron W Hayes / Jing Liu / Ryan H Gumpper / Brian J Bender / Samuel T Slocum / Brian E Krumm / Katherine Lansu / John D McCorvy / Wesley K Kroeze / Justin G English / Jeffrey F DiBerto / Reid H J Olsen / Xi-Ping Huang / Shicheng Zhang / Yongfeng Liu / Kuglae Kim / Joel Karpiak / Lily Y Jan / Soman N Abraham / Jian Jin / Brian K Shoichet / Jonathan F Fay / Bryan L Roth / ![]() ![]() Abstract: The MRGPRX family of receptors (MRGPRX1-4) is a family of mas-related G-protein-coupled receptors that have evolved relatively recently. Of these, MRGPRX2 and MRGPRX4 are key physiological and ...The MRGPRX family of receptors (MRGPRX1-4) is a family of mas-related G-protein-coupled receptors that have evolved relatively recently. Of these, MRGPRX2 and MRGPRX4 are key physiological and pathological mediators of itch and related mast cell-mediated hypersensitivity reactions. MRGPRX2 couples to both G and G in mast cells. Here we describe agonist-stabilized structures of MRGPRX2 coupled to G and G in ternary complexes with the endogenous peptide cortistatin-14 and with a synthetic agonist probe, respectively, and the development of potent antagonist probes for MRGPRX2. We also describe a specific MRGPRX4 agonist and the structure of this agonist in a complex with MRGPRX4 and G. Together, these findings should accelerate the structure-guided discovery of therapeutic agents for pain, itch and mast cell-mediated hypersensitivity. | |||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 54.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 22.9 KB 22.9 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 6.1 MB | Display | ![]() |
Images | ![]() | 135 KB | ||
Masks | ![]() | 64 MB | ![]() | |
Others | ![]() ![]() ![]() | 59.5 MB 59.4 MB 59.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 637.6 KB | Display | ![]() |
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Full document | ![]() | 637.2 KB | Display | |
Data in XML | ![]() | 399.4 KB | Display | |
Data in CIF | ![]() | 1.6 MB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7s8oMC ![]() 7s8lC ![]() 7s8mC ![]() 7s8nC ![]() 7s8pC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | |
EM raw data | ![]() Data size: 1.7 TB Data #1: Unaligned multi-frame micrographs [micrographs - multiframe]) |
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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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Annotation | Deep sharp | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.91 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
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Density Histograms |
-Additional map: sharp map
File | emd_24899_additional_1.map | ||||||||||||
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Annotation | sharp map | ||||||||||||
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Density Histograms |
-Half map: half map
File | emd_24899_half_map_1.map | ||||||||||||
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Annotation | half map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: half map
File | emd_24899_half_map_2.map | ||||||||||||
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Annotation | half map | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : MRGPRX2-Gi1 (R)-ZINC-3573
Entire | Name: MRGPRX2-Gi1 (R)-ZINC-3573 |
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Components |
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-Supramolecule #1: MRGPRX2-Gi1 (R)-ZINC-3573
Supramolecule | Name: MRGPRX2-Gi1 (R)-ZINC-3573 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 150 kDa/nm |
-Macromolecule #1: Soluble cytochrome b562,Mas-related G-protein coupled receptor me...
Macromolecule | Name: Soluble cytochrome b562,Mas-related G-protein coupled receptor member X2 chimera type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 54.054625 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: DYKDDDDAKL QTMHHHHHHH HHHENLYFQG GTTMADLEDN WETLNDNLKV IEKADNAAQV KDALTKMRAA ALDAQKATPP KLEDKSPDS PEMKDFRHGF DILVGQIDDA LKLANEGKVK EAQAAAEQLK TTRNAYIQKY LGSTLEVLFQ GPDPTTPAWG T ESTTVNGN ...String: DYKDDDDAKL QTMHHHHHHH HHHENLYFQG GTTMADLEDN WETLNDNLKV IEKADNAAQV KDALTKMRAA ALDAQKATPP KLEDKSPDS PEMKDFRHGF DILVGQIDDA LKLANEGKVK EAQAAAEQLK TTRNAYIQKY LGSTLEVLFQ GPDPTTPAWG T ESTTVNGN DQALLLLCGK ETLIPVFLIL FIALVGLVGN GFVLWLLGFR MRRNAFSVYV LSLAGADFLF LCFQIINCLV YL SNFFCSI SINFPSFFTT VMTCAYLAGL SMLSTVSTER CLSVLWPIWY RCRRPRHLSA VVCVLLWALS LLLSILEGKF CGF LFSDGD SGWCQTFDFI TAAWLIFLFM VLCGSSLALL VRILCGSRGL PLTRLYLTIL LTVLVFLLCG LPFGIQWFLI LWIW KDSDV LFCHIHPVSV VLSSLNSSAN PIIYFFVGSF RKQWRLQQPI LKLALQRALQ DIAEVDHSEG CFRQGTPEMS RSSLV |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 40.414047 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF |
-Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 39.418086 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR ...String: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TF TGHESDI NAICFFPNGN AFATGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKA DRAGVL AGHDNRVSCL GVTDDGMAVA TGSWDSFLKI WN |
-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: ![]() |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L |
-Macromolecule #5: scFv16
Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 28.668922 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAALEVLFQ GPHHHHHHHH |
-Macromolecule #6: (3R)-N,N-dimethyl-1-[(8S)-5-phenylpyrazolo[1,5-a]pyrimidin-7-yl]p...
Macromolecule | Name: (3R)-N,N-dimethyl-1-[(8S)-5-phenylpyrazolo[1,5-a]pyrimidin-7-yl]pyrrolidin-3-amine type: ligand / ID: 6 / Number of copies: 1 / Formula: 8IU |
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Molecular weight | Theoretical: 307.393 Da |
Chemical component information | ![]() ChemComp-8IU: |
-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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Grid | Model: C-flat-1.2/1.3 / Material: GOLD / Mesh: 300 |
Vitrification | Cryogen name: ETHANE-PROPANE |
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Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 45.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |