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- EMDB-29940: Cryo-EM Structure of the Prostaglandin E2 Receptor 4 Coupled to G... -

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Basic information

Entry
Database: EMDB / ID: EMD-29940
TitleCryo-EM Structure of the Prostaglandin E2 Receptor 4 Coupled to G Protein
Map dataPGE2-EP4-Gi-map
Sample
  • Complex: Cryo-EM Structure of Prostaglandin E Receptor EP4 Coupled to G Protein
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein subunit gamma
    • Protein or peptide: scFvSingle-chain variable fragment
    • Protein or peptide: Prostaglandin E2 receptor EP4 subtype
  • Ligand: (Z)-7-[(1R,2R,3R)-3-hydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxo-cyclopentyl]hept-5-enoic acid
KeywordsGPCR complex / MEMBRANE PROTEIN
Function / homology
Function and homology information


negative regulation of eosinophil extravasation / prostaglandin E receptor activity / Prostanoid ligand receptors / negative regulation of integrin activation / response to nematode / T-helper cell differentiation / regulation of stress fiber assembly / negative regulation of cytokine production / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex ...negative regulation of eosinophil extravasation / prostaglandin E receptor activity / Prostanoid ligand receptors / negative regulation of integrin activation / response to nematode / T-helper cell differentiation / regulation of stress fiber assembly / negative regulation of cytokine production / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of ossification / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / response to mechanical stimulus / regulation of mitotic spindle organization / cellular response to forskolin / JNK cascade / ERK1 and ERK2 cascade / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Regulation of insulin secretion / G protein-coupled receptor binding / positive regulation of cytokine production / 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 / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / bone development / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Sensory perception of sweet, bitter, and umami (glutamate) taste / response to peptide hormone / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / 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 / negative regulation of inflammatory response / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / positive regulation of inflammatory response / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to mechanical stimulus / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / G-protein beta-subunit binding / GDP binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / 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 / cell cortex / midbody / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / response to lipopolysaccharide / Extra-nuclear estrogen signaling / immune response / inflammatory response / cell cycle / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / GTPase activity / centrosome / synapse / protein-containing complex binding / GTP binding / nucleolus / magnesium ion binding / signal transduction / extracellular exosome / nucleoplasm
Similarity search - Function
Prostanoid EP4 receptor / Prostaglandin DP receptor / Prostanoid receptor / G-protein alpha subunit, group I / 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 ...Prostanoid EP4 receptor / Prostaglandin DP receptor / Prostanoid receptor / G-protein alpha subunit, group I / 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. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / 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 subunit gamma / Prostaglandin E2 receptor EP4 subtype / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsHuang SM / Xiong MY / Liu L / Mu J / Sheng C / Sun J
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81825022 China
CitationJournal: Proc Natl Acad Sci U S A / Year: 2023
Title: Single hormone or synthetic agonist induces G/G coupling selectivity of EP receptors via distinct binding modes and propagating paths.
Authors: Shen-Ming Huang / Meng-Yao Xiong / Lei Liu / Jianqiang Mu / Ming-Wei Wang / Ying-Li Jia / Kui Cai / Lu Tie / Chao Zhang / Sheng Cao / Xin Wen / Jia-Le Wang / Sheng-Chao Guo / Yu Li / Chang- ...Authors: Shen-Ming Huang / Meng-Yao Xiong / Lei Liu / Jianqiang Mu / Ming-Wei Wang / Ying-Li Jia / Kui Cai / Lu Tie / Chao Zhang / Sheng Cao / Xin Wen / Jia-Le Wang / Sheng-Chao Guo / Yu Li / Chang-Xiu Qu / Qing-Tao He / Bo-Yang Cai / Chenyang Xue / Shiyi Gan / Yihe Xie / Xin Cong / Zhao Yang / Wei Kong / Shuo Li / Zijian Li / Peng Xiao / Fan Yang / Xiao Yu / You-Fei Guan / Xiaoyan Zhang / Zhongmin Liu / Bao-Xue Yang / Yang Du / Jin-Peng Sun /
Abstract: To accomplish concerted physiological reactions, nature has diversified functions of a single hormone at at least two primary levels: 1) Different receptors recognize the same hormone, and 2) ...To accomplish concerted physiological reactions, nature has diversified functions of a single hormone at at least two primary levels: 1) Different receptors recognize the same hormone, and 2) different cellular effectors couple to the same hormone-receptor pair [R.P. Xiao, , re15 (2001); L. Hein, J. D. Altman, B.K. Kobilka, , 181-184 (1999); Y. Daaka, L. M. Luttrell, R. J. Lefkowitz, , 88-91 (1997)]. Not only these questions lie in the heart of hormone actions and receptor signaling but also dissecting mechanisms underlying these questions could offer therapeutic routes for refractory diseases, such as kidney injury (KI) or X-linked nephrogenic diabetes insipidus (NDI). Here, we identified that G-biased signaling, but not G activation downstream of EP4, showed beneficial effects for both KI and NDI treatments. Notably, by solving Cryo-electron microscope (cryo-EM) structures of EP3-G, EP4-G, and EP4-G in complex with endogenous prostaglandin E (PGE)or two synthetic agonists and comparing with PGE-EP2-G structures, we found that unique primary sequences of prostaglandin E2 receptor (EP) receptors and distinct conformational states of the EP4 ligand pocket govern the G/G transducer coupling selectivity through different structural propagation paths, especially via TM6 and TM7, to generate selective cytoplasmic structural features. In particular, the orientation of the PGE ω-chain and two distinct pockets encompassing agonist L902688 of EP4 were differentiated by their G/G coupling ability. Further, we identified common and distinct features of cytoplasmic side of EP receptors for G/G coupling and provide a structural basis for selective and biased agonist design of EP4 with therapeutic potential.
History
DepositionMar 2, 2023-
Header (metadata) releaseJan 3, 2024-
Map releaseJan 3, 2024-
UpdateJan 10, 2024-
Current statusJan 10, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_29940.png

Downloads & links

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Map

FileDownload / File: emd_29940.map.gz / Format: CCP4 / Size: 38.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationPGE2-EP4-Gi-map
Voxel sizeX=Y=Z: 0.85 Å
Density
Contour LevelBy AUTHOR: 0.02
Minimum - Maximum-0.04048679 - 2.105217
Average (Standard dev.)0.0024554832 (±0.035298735)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions216216216
Spacing216216216
CellA=B=C: 183.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_29940_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: PGE2-EP4-Gi-map-half1

Fileemd_29940_half_map_1.map
AnnotationPGE2-EP4-Gi-map-half1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: PGE2-EP4-Gi-map-half2

Fileemd_29940_half_map_2.map
AnnotationPGE2-EP4-Gi-map-half2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Cryo-EM Structure of Prostaglandin E Receptor EP4 Coupled to G Protein

EntireName: Cryo-EM Structure of Prostaglandin E Receptor EP4 Coupled to G Protein
Components
  • Complex: Cryo-EM Structure of Prostaglandin E Receptor EP4 Coupled to G Protein
    • Protein or peptide: Guanine nucleotide-binding protein G(i) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein subunit gamma
    • Protein or peptide: scFvSingle-chain variable fragment
    • Protein or peptide: Prostaglandin E2 receptor EP4 subtype
  • Ligand: (Z)-7-[(1R,2R,3R)-3-hydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxo-cyclopentyl]hept-5-enoic acid

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Supramolecule #1: Cryo-EM Structure of Prostaglandin E Receptor EP4 Coupled to G Protein

SupramoleculeName: Cryo-EM Structure of Prostaglandin E Receptor EP4 Coupled to G Protein
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)

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

MacromoleculeName: Guanine nucleotide-binding protein G(i) subunit alpha-1
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.445059 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHESM 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 #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: 39.418086 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR ...String:
MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TF TGHESDI NAICFFPNGN AFATGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKA DRAGVL AGHDNRVSCL GVTDDGMAVA TGSWDSFLKI WN

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

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Macromolecule #3: Guanine nucleotide-binding protein subunit gamma

MacromoleculeName: Guanine nucleotide-binding protein subunit gamma / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 12.104898 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString:
MWRELPLGLG ELHKDHQASR KLEPELWSVS ENPPSTSMAS NNTASIAQAR KLVEQLKMEA NIDRIKVSKA AADLMAYCEA HAKEDPLLT PVPASENPFR EKKFFCAIL

UniProtKB: Guanine nucleotide-binding protein subunit gamma

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Macromolecule #4: scFv

MacromoleculeName: scFv / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 32.898781 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFADV QLVESGGGLV QPGGSRKLSC SASGFAFSSF GMHWVRQAPE KGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSEDT AMYYCVRSIY YYGSSPFDFW GQGTTLTVSS G GGGSGGGG ...String:
MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFADV QLVESGGGLV QPGGSRKLSC SASGFAFSSF GMHWVRQAPE KGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSEDT AMYYCVRSIY YYGSSPFDFW GQGTTLTVSS G GGGSGGGG SGGGGSDIVM TQATSSVPVT PGESVSISCR SSKSLLHSNG NTYLYWFLQR PGQSPQLLIY RMSNLASGVP DR FSGSGSG TAFTLTISRL EAEDVGVYYC MQHLEYPLTF GAGTKLELKG SLEVLFQGPA AAHHHHHHHH

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Macromolecule #5: Prostaglandin E2 receptor EP4 subtype

MacromoleculeName: Prostaglandin E2 receptor EP4 subtype / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 53.173336 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MSTPGVNSSA SLSPDRLNSP VTIPAVMFIF GVVGNLVAIV VLCKSRKEQK ETTFYTLVCG LAVTDLLGTL LVSPVTIATY MKGQWPGGQ PLCEYSTFIL LFFSLSGLSI ICAMSVERYL AINHAYFYSH YVDKRLAGLT LFAVYASNVL FCALPNMGLG S SRLQYPDT ...String:
MSTPGVNSSA SLSPDRLNSP VTIPAVMFIF GVVGNLVAIV VLCKSRKEQK ETTFYTLVCG LAVTDLLGTL LVSPVTIATY MKGQWPGGQ PLCEYSTFIL LFFSLSGLSI ICAMSVERYL AINHAYFYSH YVDKRLAGLT LFAVYASNVL FCALPNMGLG S SRLQYPDT WCFIDWTTNV TAHAAYSYMY AGFSSFLILA TVLCNVLVCG ALLRMHRQFM RRTSLGTEQH HAAAAASVAS RG HPAASPA LPRLSDFRRR RSFRRIAGAE IQMVILLIAT SLVVLICSIP LVVRVFVNQL YQPSLEREVS KNPDLQAIRI ASV NPILDP WIYILLRKTV LSKAIEKIKC LFCRIGGSRR ERSGQHCSDS QRTSSAMSGH SRSFISRELK EISSTSQTLL PDLS LPDLS ENGLGGRNLL PGVPGMGLAQ EDTTSLRTLR ISETSDSSQG QDSESVLLVD EAGGSGRAGP APKGSSLQVT FPSET LNLS EKCI

UniProtKB: Prostaglandin E2 receptor EP4 subtype

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Macromolecule #6: (Z)-7-[(1R,2R,3R)-3-hydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxo-...

MacromoleculeName: (Z)-7-[(1R,2R,3R)-3-hydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxo-cyclopentyl]hept-5-enoic acid
type: ligand / ID: 6 / Number of copies: 1 / Formula: P2E
Molecular weightTheoretical: 352.465 Da
Chemical component information

ChemComp-P2E:
(Z)-7-[(1R,2R,3R)-3-hydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxo-cyclopentyl]hept-5-enoic acid / medication*YM / Prostaglandin E2

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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: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: OTHER
Electron opticsIllumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 25.0 e/Å2
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:

7cx2

Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: PROJECTION MATCHING
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 291813

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