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- EMDB-29524: Human M4 muscarinic acetylcholine receptor complex with Gi1 and x... -

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Entry
Database: EMDB / ID: EMD-29524
TitleHuman M4 muscarinic acetylcholine receptor complex with Gi1 and xanomeline
Map data
Sample
  • Complex: M4 mAChR bound to agonist xanomeline in complex with dominant negative Galpha-i1, Gbeta1, Ggamma2, and scFv16
    • Protein or peptide: Muscarinic acetylcholine receptor M4
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Antibody fragment scFv16
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
  • Ligand: xanomeline
  • Ligand: water
Keywords7 transmembrane receptor / SIGNALING PROTEIN-IMMUNE SYSTEM complex / MEMBRANE PROTEIN / MEMBRANE PROTEIN-SIGNALING PROTEIN-IMMUNE SYSTEM complex / MEMBRANE PROTEIN-SIGNALING PROTEIN complex
Function / homology
Function and homology information


Adenylate cyclase inhibitory pathway / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / Muscarinic acetylcholine receptors / Extra-nuclear estrogen signaling / G protein-coupled acetylcholine receptor activity / G alpha (i) signalling events / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / G protein-coupled serotonin receptor activity / GTPase activating protein binding ...Adenylate cyclase inhibitory pathway / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / Muscarinic acetylcholine receptors / Extra-nuclear estrogen signaling / G protein-coupled acetylcholine receptor activity / G alpha (i) signalling events / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / G protein-coupled serotonin receptor activity / GTPase activating protein binding / negative regulation of synaptic transmission / regulation of locomotion / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / 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 / G protein-coupled receptor binding / 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 / 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 / chemical synaptic transmission / postsynaptic membrane / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell surface receptor signaling pathway / cell cycle / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome / synapse / dendrite / protein-containing complex binding / nucleolus / GTP binding / magnesium ion binding / signal transduction / protein-containing complex / extracellular exosome / nucleoplasm / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Muscarinic acetylcholine receptor M4 / Muscarinic acetylcholine receptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit ...Muscarinic acetylcholine receptor M4 / Muscarinic acetylcholine receptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha 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 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. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Guanine nucleotide-binding protein G(i) subunit alpha-1 / Muscarinic acetylcholine receptor M4 / 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) / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.45 Å
AuthorsVuckovic Z / Mobbs JI / Glukhova A / Sexton PM / Danev R / Thal DM
Funding support United Kingdom, Australia, Japan, 7 items
OrganizationGrant numberCountry
Wellcome Trust201529/Z/16/Z United Kingdom
National Health and Medical Research Council (NHMRC, Australia)1055134 Australia
National Health and Medical Research Council (NHMRC, Australia)1150083 Australia
National Health and Medical Research Council (NHMRC, Australia)1138448 Australia
Australian Research Council (ARC)DE170100152 Australia
Australian Research Council (ARC)IC200100052 Australia
Japan Science and Technology18069571 Japan
CitationJournal: Nat Commun / Year: 2023
Title: Xanomeline displays concomitant orthosteric and allosteric binding modes at the M mAChR.
Authors: Wessel A C Burger / Vi Pham / Ziva Vuckovic / Alexander S Powers / Jesse I Mobbs / Yianni Laloudakis / Alisa Glukhova / Denise Wootten / Andrew B Tobin / Patrick M Sexton / Steven M Paul / ...Authors: Wessel A C Burger / Vi Pham / Ziva Vuckovic / Alexander S Powers / Jesse I Mobbs / Yianni Laloudakis / Alisa Glukhova / Denise Wootten / Andrew B Tobin / Patrick M Sexton / Steven M Paul / Christian C Felder / Radostin Danev / Ron O Dror / Arthur Christopoulos / Celine Valant / David M Thal /
Abstract: The M muscarinic acetylcholine receptor (M mAChR) has emerged as a drug target of high therapeutic interest due to its expression in regions of the brain involved in the regulation of psychosis, ...The M muscarinic acetylcholine receptor (M mAChR) has emerged as a drug target of high therapeutic interest due to its expression in regions of the brain involved in the regulation of psychosis, cognition, and addiction. The mAChR agonist, xanomeline, has provided significant improvement in the Positive and Negative Symptom Scale (PANSS) scores in a Phase II clinical trial for the treatment of patients suffering from schizophrenia. Here we report the active state cryo-EM structure of xanomeline bound to the human M mAChR in complex with the heterotrimeric G transducer protein. Unexpectedly, two molecules of xanomeline were found to concomitantly bind to the monomeric M mAChR, with one molecule bound in the orthosteric (acetylcholine-binding) site and a second molecule in an extracellular vestibular allosteric site. Molecular dynamic simulations supports the structural findings, and pharmacological validation confirmed that xanomeline acts as a dual orthosteric and allosteric ligand at the human M mAChR. These findings provide a basis for further understanding xanomeline's complex pharmacology and highlight the myriad of ways through which clinically relevant ligands can bind to and regulate GPCRs.
History
DepositionJan 23, 2023-
Header (metadata) releaseSep 13, 2023-
Map releaseSep 13, 2023-
UpdateSep 13, 2023-
Current statusSep 13, 2023Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_29524.png

Downloads & links

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Map

FileDownload / File: emd_29524.map.gz / Format: CCP4 / Size: 67 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.83 Å
Density
Contour LevelBy AUTHOR: 0.0117
Minimum - Maximum-0.024359925 - 0.07087363
Average (Standard dev.)-0.000056459736 (±0.0024183393)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions260260260
Spacing260260260
CellA=B=C: 215.8 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_29524_msk_1.map
Projections & Slices
AxesZYX

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Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_29524_half_map_1.map
Projections & Slices
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Histogram

Histogram (log scale)

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Half map: #2

Fileemd_29524_half_map_2.map
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Sample components

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Entire : M4 mAChR bound to agonist xanomeline in complex with dominant neg...

EntireName: M4 mAChR bound to agonist xanomeline in complex with dominant negative Galpha-i1, Gbeta1, Ggamma2, and scFv16
Components
  • Complex: M4 mAChR bound to agonist xanomeline in complex with dominant negative Galpha-i1, Gbeta1, Ggamma2, and scFv16
    • Protein or peptide: Muscarinic acetylcholine receptor M4
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Antibody fragment scFv16
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
  • Ligand: xanomeline
  • Ligand: water

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Supramolecule #1: M4 mAChR bound to agonist xanomeline in complex with dominant neg...

SupramoleculeName: M4 mAChR bound to agonist xanomeline in complex with dominant negative Galpha-i1, Gbeta1, Ggamma2, and scFv16
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5

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Macromolecule #1: Muscarinic acetylcholine receptor M4

MacromoleculeName: Muscarinic acetylcholine receptor M4 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.598277 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: DYKDDDDAMA NFTPVNGSSG NQSVRLVTSS SHNRYETVEM VFIATVTGSL SLVTVVGNIL VMLSIKVNRQ LQTVNNYFLF SLACADLII GAFSMNLYTV YIIKGYWPLG AVVCDLWLAL DYVVSNASVM NLLIISFDRY FCVTKPLTYP ARRTTKMAGL M IAAAWVLS ...String:
DYKDDDDAMA NFTPVNGSSG NQSVRLVTSS SHNRYETVEM VFIATVTGSL SLVTVVGNIL VMLSIKVNRQ LQTVNNYFLF SLACADLII GAFSMNLYTV YIIKGYWPLG AVVCDLWLAL DYVVSNASVM NLLIISFDRY FCVTKPLTYP ARRTTKMAGL M IAAAWVLS FVLWAPAILF WQFVVGKRTV PDNQCFIQFL SNPAVTFGTA IAAFYLPVVI MTVLYIHISL ASRSRVHKHR PE GPKEKKA KTKRQMAARE RKVTRTIFAI LLAFILTWTP YNVMVLVNTF CQSCIPDTVW SIGYWLCYVN STINPACYAL CNA TFKKTF RHLLLCQYRN IGTARHHHHH HHH

UniProtKB: Muscarinic acetylcholine receptor M4, Muscarinic acetylcholine receptor M4

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Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.402867 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: HHHHHHGSSG SELDQLRQEA EQLKNQIRDA RKACADATLS QITNNIDPVG RIQMRTRRTL RGHLAKIYAM HWGTDSRLLV SASQDGKLI IWDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR F LDDNQIVT ...String:
HHHHHHGSSG SELDQLRQEA EQLKNQIRDA RKACADATLS QITNNIDPVG RIQMRTRRTL RGHLAKIYAM HWGTDSRLLV SASQDGKLI IWDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR F LDDNQIVT SSGDTTCALW DIETGQQTTT FTGHTGDVMS LSLAPDTRLF VSGACDASAK LWDVREGMCR QTFTGHESDI NA ICFFPNG NAFATGSDDA TCRLFDLRAD QELMTYSHDN IICGITSVSF SKSGRLLLAG YDDFNCNVWD ALKADRAGVL AGH DNRVSC LGVTDDGMAV ATGSWDSFLK IWN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.729947 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
ASNNTASIAQ ARKLVEQLKM EANIDRIKVS KAAADLMAYC EAHAKEDPLL TPVPASENPF REKKFFCAIL

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #4: Antibody fragment scFv16

MacromoleculeName: Antibody fragment scFv16 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 26.466486 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: 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 K

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Macromolecule #5: Guanine nucleotide-binding protein G(i) subunit alpha-1

MacromoleculeName: Guanine nucleotide-binding protein G(i) subunit alpha-1
type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 40.414047 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: 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

UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1

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Macromolecule #6: xanomeline

MacromoleculeName: xanomeline / type: ligand / ID: 6 / Number of copies: 2 / Formula: XNO
Molecular weightTheoretical: 281.417 Da
Chemical component information

ChemComp-XNO:
xanomeline

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Macromolecule #7: water

MacromoleculeName: water / type: ligand / ID: 7 / Number of copies: 47 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
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

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 52.4 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.45 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 395419
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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