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- PDB-8yut: Cryo-EM structure of the amthamine-bound H2R-Gs complex -

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Basic information

Entry
Database: PDB / ID: 8yut
TitleCryo-EM structure of the amthamine-bound H2R-Gs complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Histamine H2 receptor
  • Nanobody-35
KeywordsMEMBRANE PROTEIN/IMMUNE SYSTEM / GPCR / H2R / Histamine Receptor / MEMBRANE PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


gastric acid secretion / Histamine receptors / histamine receptor activity / neurotransmitter receptor activity / positive regulation of vasoconstriction / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors ...gastric acid secretion / Histamine receptors / histamine receptor activity / neurotransmitter receptor activity / positive regulation of vasoconstriction / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / 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 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / 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 / chemical synaptic transmission / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / immune response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / dendrite / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Histamine H2 receptor / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 / G protein beta WD-40 repeat protein ...Histamine H2 receptor / Serpentine type 7TM GPCR chemoreceptor Srsx / 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 / G protein beta WD-40 repeat protein / 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. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
: / CHOLESTEROL / Histamine H2 receptor / 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
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.7 Å
AuthorsShen, Q. / Tang, X. / Wen, X. / Cheng, S. / Xiao, P. / Zang, S. / Shen, D. / Jiang, L. / Zheng, Y. / Zhang, H. ...Shen, Q. / Tang, X. / Wen, X. / Cheng, S. / Xiao, P. / Zang, S. / Shen, D. / Jiang, L. / Zheng, Y. / Zhang, H. / Xu, H. / Mao, C. / Zhang, M. / Hu, W. / Sun, J. / Chen, Z. / Zhang, Y.
Funding support China, 1items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2019YFA050880 China
CitationJournal: Adv Sci (Weinh) / Year: 2024
Title: Molecular Determinant Underlying Selective Coupling of Primary G-Protein by Class A GPCRs.
Authors: Qingya Shen / Xinyan Tang / Xin Wen / Shizhuo Cheng / Peng Xiao / Shao-Kun Zang / Dan-Dan Shen / Lei Jiang / Yanrong Zheng / Huibing Zhang / Haomang Xu / Chunyou Mao / Min Zhang / Weiwei Hu ...Authors: Qingya Shen / Xinyan Tang / Xin Wen / Shizhuo Cheng / Peng Xiao / Shao-Kun Zang / Dan-Dan Shen / Lei Jiang / Yanrong Zheng / Huibing Zhang / Haomang Xu / Chunyou Mao / Min Zhang / Weiwei Hu / Jin-Peng Sun / Yan Zhang / Zhong Chen /
Abstract: G-protein-coupled receptors (GPCRs) transmit downstream signals predominantly via G-protein pathways. However, the conformational basis of selective coupling of primary G-protein remains elusive. ...G-protein-coupled receptors (GPCRs) transmit downstream signals predominantly via G-protein pathways. However, the conformational basis of selective coupling of primary G-protein remains elusive. Histamine receptors HR and HR couple with G- or G-proteins respectively. Here, three cryo-EM structures of HR-G and HR-G complexes are presented at a global resolution of 2.6-2.7 Å. These structures reveal the unique binding pose for endogenous histamine in HR, wherein the amino group interacts with E206 of HR instead of the conserved D114 of other aminergic receptors. Furthermore, comparative analysis of the HR-G and HR-G complexes reveals that the structural geometry of TM5/TM6 determines the primary G-protein selectivity in histamine receptors. Machine learning (ML)-based structuromic profiling and functional analysis of class A GPCR-G-protein complexes illustrate that TM5 length, TM5 tilt, and TM6 outward movement are key determinants of the G and G selectivity among the whole Class A family. Collectively, the findings uncover the common structural geometry within class A GPCRs that determines the primary G- and G-coupling selectivity.
History
DepositionMar 27, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jun 5, 2024Provider: repository / Type: Initial release
Revision 1.1Jul 3, 2024Group: Data collection / Database references / Category: citation / em_admin / Item: _citation.journal_volume / _em_admin.last_update
Revision 1.2Nov 20, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nanobody-35
R: Histamine H2 receptor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)151,7727
Polymers151,2285
Non-polymers5442
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG

#1: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short


Mass: 43883.762 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS / Cell (production host): SF9 / Production host: Spodoptera frugiperda (fall armyworm)
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39141.793 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Cell (production host): SF9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Cell (production host): SF9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768

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Antibody / Protein , 2 types, 2 molecules NR

#4: Antibody Nanobody-35


Mass: 13885.439 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Spodoptera frugiperda (fall armyworm)
#5: Protein Histamine H2 receptor / H2R / HH2R / Gastric receptor I


Mass: 46456.023 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HRH2 / Cell (production host): SF9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P25021

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Non-polymers , 2 types, 2 molecules

#6: Chemical ChemComp-A1D67 / 5-(2-azanylethyl)-4-methyl-1,3-thiazol-2-amine / Amthamine


Mass: 157.237 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H11N3S / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H46O

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: amthamine-bound H2R-Gs complex / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 62 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategory
7Coot0.9model fitting
13PHENIX1.19model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 368447 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 38.91 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0058388
ELECTRON MICROSCOPYf_angle_d0.771211373
ELECTRON MICROSCOPYf_chiral_restr0.05681301
ELECTRON MICROSCOPYf_plane_restr0.0041443
ELECTRON MICROSCOPYf_dihedral_angle_d10.54753032

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