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- EMDB-0917: Cryo-EM structure of the human glucagon receptor in complex with Gs -

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Basic information

Entry
Database: EMDB / ID: EMD-0917
TitleCryo-EM structure of the human glucagon receptor in complex with Gs
Map data
Sample
  • Complex: Complex of glucagon receptor bound to glucagon, Gs protein and nanobody
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • 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: Nb35
    • Protein or peptide: Glucagon receptor
    • Protein or peptide: Glucagon
Function / homology
Function and homology information


glucagon receptor binding / regulation of glycogen metabolic process / glucagon receptor activity / negative regulation of execution phase of apoptosis / feeding behavior / positive regulation of calcium ion import / cellular response to glucagon stimulus / exocytosis / response to starvation / positive regulation of insulin secretion involved in cellular response to glucose stimulus ...glucagon receptor binding / regulation of glycogen metabolic process / glucagon receptor activity / negative regulation of execution phase of apoptosis / feeding behavior / positive regulation of calcium ion import / cellular response to glucagon stimulus / exocytosis / response to starvation / positive regulation of insulin secretion involved in cellular response to glucose stimulus / peptide hormone binding / regulation of insulin secretion / PKA activation in glucagon signalling / hair follicle placode formation / mu-type opioid receptor binding / developmental growth / corticotropin-releasing hormone receptor 1 binding / intracellular transport / D1 dopamine receptor binding / Synthesis, secretion, and deacylation of Ghrelin / Hedgehog 'off' state / beta-2 adrenergic receptor binding / adenylate cyclase-activating adrenergic receptor signaling pathway / positive regulation of gluconeogenesis / protein kinase A signaling / activation of adenylate cyclase activity / adenylate cyclase activator activity / cellular response to starvation / hormone-mediated signaling pathway / response to nutrient / guanyl-nucleotide exchange factor activity / trans-Golgi network membrane / positive regulation of peptidyl-threonine phosphorylation / response to activity / generation of precursor metabolites and energy / gluconeogenesis / insulin-like growth factor receptor binding / ionotropic glutamate receptor binding / G-protein beta/gamma-subunit complex binding / bone development / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / hormone activity / 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 / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / regulation of blood pressure / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / platelet aggregation / 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 / 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 / sensory perception of smell / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of peptidyl-serine phosphorylation / GTPase binding / glucose homeostasis / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / positive regulation of cold-induced thermogenesis / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / secretory granule lumen / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling
Similarity search - Function
GPCR, family 2, glucagon receptor / Glucagon / Glucagon/GIP/secretin/VIP / Peptide hormone / Glucagon / GIP / secretin / VIP family signature. / Glucagon like hormones / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / G-protein coupled receptors family 2 signature 1. / Hormone receptor domain / GPCR, family 2, extracellular hormone receptor domain ...GPCR, family 2, glucagon receptor / Glucagon / Glucagon/GIP/secretin/VIP / Peptide hormone / Glucagon / GIP / secretin / VIP family signature. / Glucagon like hormones / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / G-protein coupled receptors family 2 signature 1. / Hormone receptor domain / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / GPCR family 2, extracellular hormone receptor domain superfamily / G-protein coupled receptors family 2 signature 2. / GPCR, family 2, secretin-like, conserved site / GPCR, family 2, secretin-like / 7 transmembrane receptor (Secretin family) / GPCR, family 2-like / G-protein coupled receptors family 2 profile 2. / G-protein alpha subunit, group S / 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 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
Pro-glucagon / Glucagon 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 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsQiao A / Han S / Tai L / Sun F / Zhao Q / Wu B
Funding support China, 8 items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2018YFA0507000 China
National Science Foundation (NSF, China)31825010 China
Ministry of Science and Technology (MoST, China)2017YFA0504703 China
National Science Foundation (NSF, China)31830020 China
National Science Foundation (NSF, China)81525024 China
Chinese Academy of SciencesQYZDB-SSW-SMC054 China
Chinese Academy of SciencesQYZDB-SSW-SMC024 China
Ministry of Science and Technology (MoST, China)2018ZX09711002 China
CitationJournal: Science / Year: 2020
Title: Structural basis of G and G recognition by the human glucagon receptor.
Authors: Anna Qiao / Shuo Han / Xinmei Li / Zhixin Li / Peishen Zhao / Antao Dai / Rulve Chang / Linhua Tai / Qiuxiang Tan / Xiaojing Chu / Limin Ma / Thor Seneca Thorsen / Steffen Reedtz-Runge / ...Authors: Anna Qiao / Shuo Han / Xinmei Li / Zhixin Li / Peishen Zhao / Antao Dai / Rulve Chang / Linhua Tai / Qiuxiang Tan / Xiaojing Chu / Limin Ma / Thor Seneca Thorsen / Steffen Reedtz-Runge / Dehua Yang / Ming-Wei Wang / Patrick M Sexton / Denise Wootten / Fei Sun / Qiang Zhao / Beili Wu /
Abstract: Class B G protein-coupled receptors, an important class of therapeutic targets, signal mainly through the G class of heterotrimeric G proteins, although they do display some promiscuity in G protein ...Class B G protein-coupled receptors, an important class of therapeutic targets, signal mainly through the G class of heterotrimeric G proteins, although they do display some promiscuity in G protein binding. Using cryo-electron microscopy, we determined the structures of the human glucagon receptor (GCGR) bound to glucagon and distinct classes of heterotrimeric G proteins, G or G These two structures adopt a similar open binding cavity to accommodate G and G The G binding selectivity of GCGR is explained by a larger interaction interface, but there are specific interactions that affect G more than G binding. Conformational differences in the receptor intracellular loops were found to be key selectivity determinants. These distinctions in transducer engagement were supported by mutagenesis and functional studies.
History
DepositionDec 26, 2019-
Header (metadata) releaseApr 1, 2020-
Map releaseApr 1, 2020-
UpdateDec 9, 2020-
Current statusDec 9, 2020Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.012
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.012
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6lmk
  • Surface level: 0.012
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_0917.png

Downloads & links

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Map

FileDownload / File: emd_0917.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.82 Å
Density
Contour LevelBy AUTHOR: 0.012 / Movie #1: 0.012
Minimum - Maximum-0.0385136 - 0.06487186
Average (Standard dev.)-0.00001326966 (±0.0021949878)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 209.92 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.820.820.82
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z209.920209.920209.920
α/β/γ90.00090.00090.000
start NX/NY/NZ-31-35-52
NX/NY/NZ11798209
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-0.0390.065-0.000

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Supplemental data

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Mask #1

Fileemd_0917_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Complex of glucagon receptor bound to glucagon, Gs protein and na...

EntireName: Complex of glucagon receptor bound to glucagon, Gs protein and nanobody
Components
  • Complex: Complex of glucagon receptor bound to glucagon, Gs protein and nanobody
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • 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: Nb35
    • Protein or peptide: Glucagon receptor
    • Protein or peptide: Glucagon

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Supramolecule #1: Complex of glucagon receptor bound to glucagon, Gs protein and na...

SupramoleculeName: Complex of glucagon receptor bound to glucagon, Gs protein and nanobody
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: unidentified baculovirus

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

MacromoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 45.683434 KDa
Recombinant expressionOrganism: unidentified baculovirus
SequenceString: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...String:
MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQA DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL

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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: 38.744371 KDa
Recombinant expressionOrganism: unidentified baculovirus
SequenceString: 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

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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: 7.861143 KDa
Recombinant expressionOrganism: unidentified baculovirus
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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Macromolecule #4: Nb35

MacromoleculeName: Nb35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 15.140742 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSSH HHHHHEPEA

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Macromolecule #5: Glucagon receptor

MacromoleculeName: Glucagon receptor / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 48.398109 KDa
Recombinant expressionOrganism: unidentified baculovirus
SequenceString: QVMDFLFEKW KLYGDQCHHN LSLLPPPTEL VCNRTFDKYS CWPDTPANTT ANISCPWYLP WHHKVQHRFV FKRCGPDGQW VRGPRGQPW RDASQCQMDG EEIEVQKEVA KMYSSFQVMY TVGYSLSLGA LLLALAILGG LSKLHCTRNA IHANLFASFV L KASSVLVI ...String:
QVMDFLFEKW KLYGDQCHHN LSLLPPPTEL VCNRTFDKYS CWPDTPANTT ANISCPWYLP WHHKVQHRFV FKRCGPDGQW VRGPRGQPW RDASQCQMDG EEIEVQKEVA KMYSSFQVMY TVGYSLSLGA LLLALAILGG LSKLHCTRNA IHANLFASFV L KASSVLVI DGLLRTRYSQ KIGDDLSVST WLSDGAVAGC RVAAVFMQYG IVANYCWLLV EGLYLHNLLG LATLPERSFF SL YLGIGWG APMLFVVPWA VVKCLFENVQ CWTSNDNMGF WWILRFPVFL AILINFFIFV RIVQLLVAKL RARQMHHTDY KFR LAKSTL TLIPLLGVHE VVFAFVTDEH AQGTLRSAKL FFDLFLSSFQ GLLVAVLYCF LNKEVQSELR RRWHRWRLGK VLWE ERNTS NGSGSEDQVD PRLIDGK

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Macromolecule #6: Glucagon

MacromoleculeName: Glucagon / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 3.486781 KDa
SequenceString:
HSQGTFTSDY SKYLDSRRAQ DFVQWLMNT

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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

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 1.875 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

5yqz

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 169878
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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