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- EMDB-30003: Cryo-EM map of CRF1 receptor bound to CRF and Gs protein -

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Basic information

Entry
Database: EMDB / ID: EMD-30003
TitleCryo-EM map of CRF1 receptor bound to CRF and Gs protein
Map dataSharpened map
Sample
  • Complex: CRF1 receptor bound to CRF and Gs protein
Function / homology
Function and homology information


regulation of adenylate cyclase activity involved in G protein-coupled receptor signaling pathway / corticotropin-releasing hormone binding / regulation of corticosterone secretion / corticotrophin-releasing factor receptor activity / corticotropin secretion / general adaptation syndrome, behavioral process / cellular response to corticotropin-releasing hormone stimulus / parturition / negative regulation of voltage-gated calcium channel activity / fear response ...regulation of adenylate cyclase activity involved in G protein-coupled receptor signaling pathway / corticotropin-releasing hormone binding / regulation of corticosterone secretion / corticotrophin-releasing factor receptor activity / corticotropin secretion / general adaptation syndrome, behavioral process / cellular response to corticotropin-releasing hormone stimulus / parturition / negative regulation of voltage-gated calcium channel activity / fear response / behavioral response to ethanol / G protein-coupled peptide receptor activity / Class B/2 (Secretin family receptors) / adrenal gland development / PKA activation in glucagon signalling / intracellular transport / hair follicle placode formation / D1 dopamine receptor binding / developmental growth / Hedgehog 'off' state / positive regulation of cAMP-mediated signaling / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / adenylate cyclase activator activity / trans-Golgi network membrane / female pregnancy / Olfactory Signaling Pathway / G-protein beta/gamma-subunit complex binding / Activation of the phototransduction cascade / 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 / bone development / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / platelet aggregation / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / positive regulation of GTPase activity / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / cellular response to prostaglandin E stimulus / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / G-protein beta-subunit binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / G alpha (12/13) signalling events / signaling receptor complex adaptor activity / sensory perception of smell / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cold-induced thermogenesis / 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 / cell surface receptor signaling pathway / endosome / neuron projection / immune response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
GPCR, family 2, corticotropin releasing factor receptor, type 1 / GPCR, family 2, corticotropin releasing factor 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, corticotropin releasing factor receptor, type 1 / GPCR, family 2, corticotropin releasing factor 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
Corticotropin-releasing factor receptor 1 / 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)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.7 Å
AuthorsLiang YL / Belousoff MJ / Zhao P / Danev R / Sexton PM / Wootten D
Funding support Australia, Japan, 5 items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia)1120919 Australia
National Health and Medical Research Council (NHMRC, Australia)1150083 Australia
National Health and Medical Research Council (NHMRC, Australia)1159006 Australia
Japan Science and Technology18069571 Japan
Japan Society for the Promotion of Science (JSPS)18H06043 Japan
CitationJournal: Mol Cell / Year: 2020
Title: Toward a Structural Understanding of Class B GPCR Peptide Binding and Activation.
Authors: Yi-Lynn Liang / Matthew J Belousoff / Peishen Zhao / Cassandra Koole / Madeleine M Fletcher / Tin T Truong / Villy Julita / George Christopoulos / H Eric Xu / Yan Zhang / Maryam Khoshouei / ...Authors: Yi-Lynn Liang / Matthew J Belousoff / Peishen Zhao / Cassandra Koole / Madeleine M Fletcher / Tin T Truong / Villy Julita / George Christopoulos / H Eric Xu / Yan Zhang / Maryam Khoshouei / Arthur Christopoulos / Radostin Danev / Patrick M Sexton / Denise Wootten /
Abstract: Class B G protein-coupled receptors (GPCRs) are important therapeutic targets for major diseases. Here, we present structures of peptide and Gs-bound pituitary adenylate cyclase-activating peptide, ...Class B G protein-coupled receptors (GPCRs) are important therapeutic targets for major diseases. Here, we present structures of peptide and Gs-bound pituitary adenylate cyclase-activating peptide, PAC1 receptor, and corticotropin-releasing factor (CRF), (CRF1) receptor. Together with recently solved structures, these provide coverage of the major class B GPCR subfamilies. Diverse orientations of the extracellular domain to the receptor core in different receptors are at least partially dependent on evolutionary conservation in the structure and nature of peptide interactions. Differences in peptide interactions to the receptor core also influence the interlinked TM2-TM1-TM6/ECL3/TM7 domain, and this is likely important in their diverse signaling. However, common conformational reorganization of ECL2, linked to reorganization of ICL2, modulates G protein contacts. Comparison between receptors reveals ICL2 as a key domain forming dynamic G protein interactions in a receptor- and ligand-specific manner. This work advances our understanding of class B GPCR activation and Gs coupling.
History
DepositionFeb 10, 2020-
Header (metadata) releaseFeb 19, 2020-
Map releaseFeb 19, 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: 0.06
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.06
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

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Map

FileDownload / File: emd_30003.map.gz / Format: CCP4 / Size: 20.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSharpened map
Voxel sizeX=Y=Z: 1.207 Å
Density
Contour LevelBy AUTHOR: 0.06 / Movie #1: 0.06
Minimum - Maximum-0.22311088 - 0.35045698
Average (Standard dev.)0.00001109892 (±0.011070525)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions176176176
Spacing176176176
CellA=B=C: 212.432 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.2071.2071.207
M x/y/z176176176
origin x/y/z0.0000.0000.000
length x/y/z212.432212.432212.432
α/β/γ90.00090.00090.000
start NX/NY/NZ107107101
NX/NY/NZ267267267
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS176176176
D min/max/mean-0.2230.3500.000

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Supplemental data

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Mask #1

Fileemd_30003_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: Unsharpened map

Fileemd_30003_additional.map
AnnotationUnsharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: Unsharpened map

Fileemd_30003_additional_1.map
AnnotationUnsharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Half map: Unsharpened half-map 2

Fileemd_30003_half_map_1.map
AnnotationUnsharpened half-map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Half map: Unsharpened half-map 1

Fileemd_30003_half_map_2.map
AnnotationUnsharpened half-map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Sample components

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Entire : CRF1 receptor bound to CRF and Gs protein

EntireName: CRF1 receptor bound to CRF and Gs protein
Components
  • Complex: CRF1 receptor bound to CRF and Gs protein

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Supramolecule #1: CRF1 receptor bound to CRF and Gs protein

SupramoleculeName: CRF1 receptor bound to CRF and Gs protein / type: complex / ID: 1 / Parent: 0
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
Molecular weightTheoretical: 150 kDa/nm

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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

Concentration4.35 mg/mL
BufferpH: 7.4
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV / Details: blot time 10 s.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Calibrated defocus max: 1.6 µm / Calibrated defocus min: 0.4 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 1.6 µm / Nominal defocus min: 0.4 µm / Nominal magnification: 105000
Specialist opticsPhase plate: VOLTA PHASE PLATE / Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 25 eV
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 1 / Number real images: 4300 / Average exposure time: 3.715 sec. / Average electron dose: 64.0 e/Å2
Details: Volta phase plate images: 3274; Conventional defocus images: 1026
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 5500000
CTF correctionSoftware - Name: Gctf
Startup modelType of model: OTHER
Details: 20A low-pass filtered GPCR map from previous experiment.
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION / Software - details: 3
Final 3D classificationNumber classes: 3 / Software - Name: RELION / Software - details: 3
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION / Software - details: 3
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Software - details: 3 / Number images used: 515871

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