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- EMDB-26004: Cryo-EM map of the full-length relaxin receptor RXFP1 in complex ... -
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Open data
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Basic information
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Title | Cryo-EM map of the full-length relaxin receptor RXFP1 in complex with heterotrimeric Gs | |||||||||
![]() | Relaxin receptor RXFP1 in complex with heterotrimeric Gs | |||||||||
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![]() | GPCR / Complex / Signaling / Relaxin / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() lung connective tissue development / nipple morphogenesis / Relaxin receptors / parturition / myofibroblast differentiation / hormone binding / G protein-coupled peptide receptor activity / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth ...lung connective tissue development / nipple morphogenesis / Relaxin receptors / parturition / myofibroblast differentiation / hormone binding / G protein-coupled peptide receptor activity / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / hormone-mediated signaling pathway / extracellular matrix organization / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / G protein-coupled receptor activity / bone development / G-protein beta/gamma-subunit complex binding / platelet aggregation / Olfactory Signaling Pathway / cognition / 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 / adenylate cyclase-activating G protein-coupled 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 / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / 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 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell / 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) / positive regulation of cold-induced thermogenesis / G protein activity / GTPase binding / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / 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 / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / metal ion binding / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.2 Å | |||||||||
![]() | Erlandson SC / Rawson S / Kruse AC | |||||||||
Funding support | ![]()
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![]() | ![]() Title: The relaxin receptor RXFP1 signals through a mechanism of autoinhibition. Authors: Sarah C Erlandson / Shaun Rawson / James Osei-Owusu / Kelly P Brock / Xinyue Liu / Joao A Paulo / Julian Mintseris / Steven P Gygi / Debora S Marks / Xiaojing Cong / Andrew C Kruse / ![]() ![]() Abstract: The relaxin family peptide receptor 1 (RXFP1) is the receptor for relaxin-2, an important regulator of reproductive and cardiovascular physiology. RXFP1 is a multi-domain G protein-coupled receptor ...The relaxin family peptide receptor 1 (RXFP1) is the receptor for relaxin-2, an important regulator of reproductive and cardiovascular physiology. RXFP1 is a multi-domain G protein-coupled receptor (GPCR) with an ectodomain consisting of a low-density lipoprotein receptor class A (LDLa) module and leucine-rich repeats. The mechanism of RXFP1 signal transduction is clearly distinct from that of other GPCRs, but remains very poorly understood. In the present study, we determine the cryo-electron microscopy structure of active-state human RXFP1, bound to a single-chain version of the endogenous agonist relaxin-2 and the heterotrimeric G protein. Evolutionary coupling analysis and structure-guided functional experiments reveal that RXFP1 signals through a mechanism of autoinhibition. Our results explain how an unusual GPCR family functions, providing a path to rational drug development targeting the relaxin receptors. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 55.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 23.3 KB 23.3 KB | Display Display | ![]() |
Images | ![]() | 35.3 KB | ||
Others | ![]() ![]() ![]() | 71.3 MB 71.4 MB 71.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7tmwC 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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Annotation | Relaxin receptor RXFP1 in complex with heterotrimeric Gs | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: Relaxin receptor RXFP1 in complex with heterotrimeric Gs
File | emd_26004_additional_1.map | ||||||||||||
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Annotation | Relaxin receptor RXFP1 in complex with heterotrimeric Gs | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Relaxin receptor RXFP1 in complex with heterotrimeric Gs
File | emd_26004_half_map_1.map | ||||||||||||
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Annotation | Relaxin receptor RXFP1 in complex with heterotrimeric Gs | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Relaxin receptor RXFP1 in complex with heterotrimeric Gs
File | emd_26004_half_map_2.map | ||||||||||||
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Annotation | Relaxin receptor RXFP1 in complex with heterotrimeric Gs | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Complex of the relaxin receptor RXFP1 and heterotrimeric Gs
Entire | Name: Complex of the relaxin receptor RXFP1 and heterotrimeric Gs |
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Components |
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-Supramolecule #1: Complex of the relaxin receptor RXFP1 and heterotrimeric Gs
Supramolecule | Name: Complex of the relaxin receptor RXFP1 and heterotrimeric Gs type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Molecular weight | Theoretical: 180 KDa |
-Supramolecule #2: Relaxin receptor 1, Guanine nucleotide-binding protein G(s) subun...
Supramolecule | Name: Relaxin receptor 1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() |
-Supramolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,...
Supramolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2-#3 |
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Source (natural) | Organism: ![]() |
-Supramolecule #4: Camelid antibody VHH fragment Nb35
Supramolecule | Name: Camelid antibody VHH fragment Nb35 / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #4 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Relaxin receptor 1, Guanine nucleotide-binding protein G(s) subun...
Macromolecule | Name: Relaxin receptor 1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short fusion type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() |
Sequence | String: DYKDDDDGGS LEVLFQGPGG SQDVKCSLGY FPCGNITKCL PQLLHCNGVD DCGNQADEDN CGDNNGWSLQ FDKYFASYYK MTSQYPFEAE TPECLVGSVP VQCLCQGLEL DCDETNLRAV PSVSSNVTAM SLQWNLIRKL PPDCFKNYHD LQKLYLQNNK ITSISIYAFR ...String: DYKDDDDGGS LEVLFQGPGG SQDVKCSLGY FPCGNITKCL PQLLHCNGVD DCGNQADEDN CGDNNGWSLQ FDKYFASYYK MTSQYPFEAE TPECLVGSVP VQCLCQGLEL DCDETNLRAV PSVSSNVTAM SLQWNLIRKL PPDCFKNYHD LQKLYLQNNK ITSISIYAFR GLNSLTKLYL SHNRITFLKP GVFEDLHRLE WLIIEDNHLS RISPPTFYGL NSLILLVLMN NVLTRLPDKP LCQHMPRLHW LDLEGNHIHN LRNLTFISCS NLTVLVMRKN KINHLNENTF APLQKLDELD LGSNKIENLP PLIFKDLKEL SQLNLSYNPI QKIQANQFDY LVKLKSLSLE GIEISNIQQR MFRPLMNLSH IYFKKFQYCG YAPHVRSCKP NTDGISSLEN LLASIIQRVF VWVVSAVTCF GNIFVICMRP YIRSENKLYA MSIISLCCAD CLMGIYLFVI GGFDLKFRGE YNKHAQLWME STHCQLVGSL AILSTEVSVL LLTFLTLEKY ICIVYPFRCV RPGKCRTITV LILIWITGFI VAFIPLSNKE FFKNYYGTNG VCFPLHSEDT ESIGAQIYSV AIFLGINLAA FIIIVFSYGS MFYSVHQSAI TATEIRNQVK KEMILAKRFF FIVFTDALCW IPIFVVKFLS LLQVEIPGTI TSWVVIFILP INSALNPILY TLTTRPFKEM IHRFWYNYRQ RKSMDSKGQK TYAPSFIWVE MWPLQEMPPE LMKPDLNSKT EDQRNEEKAQ REANKKIEKQ LQKDKQVYRA THRLLLLGAD NSGKSTIVKQ MRIYHGGSGG SGGTSGIFET KFQVDKVNFH MFDVGGQRDE RRKWIQCFND VTAIIFVVDS SDYNRLQEAL NLFKSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED YFPEFARYTT PEDATPEPGE DPRVTRAKYF IRDEFLRIST ASGDGRHYCY PHFTCAVDTE NARRIFNDCR DIIQRMHLRQ YELL UniProtKB: Relaxin receptor 1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short |
-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 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR FLDDNQIVTS ...String: MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TFTGHESDIN AICFFPNGNA FATGSDDATC RLFDLRADQE LMTYSHDNII CGITSVSFSK SGRLLLAGYD DFNCNVWDAL KADRAGVLAG HDNRVSCLGV TDDGMAVATG SWDSFLKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: 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: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() ![]() |
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 #4: Camelid antibody VHH fragment Nb35
Macromolecule | Name: Camelid antibody VHH fragment Nb35 / type: protein_or_peptide / ID: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPED TAVYYCARCP APFTRDCFDV TSTTYAYRGQ GTQVTVSSLE VLFQGPGHHH HHHHHGSEDQ VDPRLIDGK |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.2 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 283.15 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 52.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.3000000000000003 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 81000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |