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- EMDB-29935: Cryo-EM Structure of the Prostaglandin E Receptor EP4 Coupled to ... -

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Entry
Database: EMDB / ID: EMD-29935
TitleCryo-EM Structure of the Prostaglandin E Receptor EP4 Coupled to G Protein
Map data
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 G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: scFv16
    • Protein or peptide: Prostaglandin E2 receptor EP4 subtype
  • Ligand: (5S)-5-[(3R)-4,4-difluoro-3-hydroxy-4-phenylbutyl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-one
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 / regulation of ossification / T cell migration ...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 / regulation of ossification / T cell migration / D2 dopamine receptor binding / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / response to mechanical stimulus / G protein-coupled serotonin receptor binding / cellular response to forskolin / JNK cascade / regulation of mitotic spindle organization / ERK1 and ERK2 cascade / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / positive regulation of cytokine production / Regulation of insulin secretion / G protein-coupled receptor binding / bone development / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating 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-coupled acetylcholine receptor signaling pathway / G-protein activation / 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 / response to peptide hormone / negative regulation of inflammatory response / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / cellular response to mechanical stimulus / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / positive regulation of inflammatory response / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / GDP binding / cellular response to prostaglandin E stimulus / 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 / Ca2+ pathway / cell cortex / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / Ras protein signal transduction / response to lipopolysaccharide / cell population proliferation / Extra-nuclear estrogen signaling / inflammatory response / immune response / 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
Similarity search - Function
Prostanoid EP4 receptor / Prostaglandin DP receptor / Prostanoid receptor / G-protein alpha subunit, group I / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit ...Prostanoid EP4 receptor / Prostaglandin DP receptor / Prostanoid receptor / G-protein alpha subunit, group I / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / 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 / 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
Prostaglandin E2 receptor EP4 subtype / 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(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.5 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-
UpdateOct 30, 2024-
Current statusOct 30, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_29935.png

Downloads & links

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Map

FileDownload / File: emd_29935.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
1.1 Å/pix.
x 240 pix.
= 262.8 Å		1.1 Å/pix.
x 240 pix.
= 262.8 Å		1.1 Å/pix.
x 240 pix.
= 262.8 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.095 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.323
Minimum - Maximum-1.8196627 - 3.193381
Average (Standard dev.)-0.0023619176 (±0.06026434)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions240240240
Spacing240240240
CellA=B=C: 262.80002 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_29935_half_map_1.map
Projections & Slices
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Half map: #1

Fileemd_29935_half_map_2.map
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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 G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: scFv16
    • Protein or peptide: Prostaglandin E2 receptor EP4 subtype
  • Ligand: (5S)-5-[(3R)-4,4-difluoro-3-hydroxy-4-phenylbutyl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-one

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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: Spodoptera frugiperd (fall armyworm)
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
Details: Sequence 'MHHHHHHLEVLFQGPGSSG' is the EXPRESSION TAG.
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.418086 KDa
Recombinant expressionOrganism: Spodoptera frugiperd (fall armyworm)
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 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: Spodoptera frugiperd (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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

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Macromolecule #4: scFv16

MacromoleculeName: scFv16 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 26.610615 KDa
Recombinant expressionOrganism: Spodoptera frugiperd (fall armyworm)
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 KGS

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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: Spodoptera frugiperd (fall armyworm)
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: (5S)-5-[(3R)-4,4-difluoro-3-hydroxy-4-phenylbutyl]-1-[6-(1H-tetra...

MacromoleculeName: (5S)-5-[(3R)-4,4-difluoro-3-hydroxy-4-phenylbutyl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-one
type: ligand / ID: 6 / Number of copies: 1 / Formula: YX9
Molecular weightTheoretical: 421.484 Da
Chemical component information

ChemComp-YX9:
(5S)-5-[(3R)-4,4-difluoro-3-hydroxy-4-phenylbutyl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-one

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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
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 25.0 e/Å2
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
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

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 442812
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: PROJECTION MATCHING

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