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- EMDB-33891: Cryo-EM structure of the human chemerin receptor 1 complex with t... -

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Entry
Database: EMDB / ID: EMD-33891
TitleCryo-EM structure of the human chemerin receptor 1 complex with the C-terminal nonapeptide of chemerin
Map data
Sample
  • Complex: CMKLR1-Gi -scFv16 complex
    • Complex: Retinoic acid receptor responder protein 2
      • Protein or peptide: Retinoic acid receptor responder protein 2
    • Complex: Chemerin-like receptor 1, Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
      • Protein or peptide: Chemerin-like receptor 1
      • 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
    • Complex: scFV16
      • Protein or peptide: scFV16
  • Ligand: CHOLESTEROL
Function / homology
Function and homology information


adipokinetic hormone binding / adipokinetic hormone receptor activity / platelet dense granule lumen / complement receptor activity / regulation of lipid catabolic process / antifungal innate immune response / chemokine receptor activity / embryonic digestive tract development / Class A/1 (Rhodopsin-like receptors) / positive regulation of chemotaxis ...adipokinetic hormone binding / adipokinetic hormone receptor activity / platelet dense granule lumen / complement receptor activity / regulation of lipid catabolic process / antifungal innate immune response / chemokine receptor activity / embryonic digestive tract development / Class A/1 (Rhodopsin-like receptors) / positive regulation of chemotaxis / complement receptor mediated signaling pathway / antifungal humoral response / negative regulation of interleukin-12 production / retinoid metabolic process / positive regulation of macrophage chemotaxis / negative regulation of NF-kappaB transcription factor activity / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / positive regulation of fat cell differentiation / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / regulation of calcium-mediated signaling / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / extracellular matrix / skeletal system development / Regulation of insulin secretion / G protein-coupled receptor activity / 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 / response to peptide hormone / 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 / chemotaxis / 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 / Platelet degranulation / GTPase binding / insulin receptor signaling pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / signaling receptor activity / positive regulation of cold-induced thermogenesis / cell cortex / midbody / G alpha (i) signalling events / positive regulation of cytosolic calcium ion concentration / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / collagen-containing extracellular matrix / defense response to Gram-negative bacterium / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell differentiation / defense response to Gram-positive bacterium / inflammatory response / immune response / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway
Similarity search - Function
Retinoic acid receptor responder protein 2 / Chemerin-like receptor 1 / Formyl peptide receptor-related / Cystatin superfamily / 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 ...Retinoic acid receptor responder protein 2 / Chemerin-like receptor 1 / Formyl peptide receptor-related / Cystatin superfamily / 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. / 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)/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 / Chemerin-like receptor 1 / Retinoic acid receptor responder protein 2
Similarity search - Component
Biological speciesHomo sapiens (human) / Vicugna pacos (alpaca)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.81 Å
AuthorsChen G / Liao Q / Ye RD / Wang J
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: Proc Natl Acad Sci U S A / Year: 2023
Title: Cryo-EM structure of the human chemerin receptor 1-Gi protein complex bound to the C-terminal nonapeptide of chemerin.
Authors: Junlin Wang / Geng Chen / Qiwen Liao / Wenping Lyu / Aijun Liu / Lizhe Zhu / Yang Du / Richard D Ye /
Abstract: Chemerin is a processed protein that acts on G protein-coupled receptors (GPCRs) for its chemotactic and adipokine activities. The biologically active chemerin (chemerin 21-157) results from ...Chemerin is a processed protein that acts on G protein-coupled receptors (GPCRs) for its chemotactic and adipokine activities. The biologically active chemerin (chemerin 21-157) results from proteolytic cleavage of prochemerin and uses its C-terminal peptide containing the sequence YFPGQFAFS for receptor activation. Here we report a high-resolution cryo-electron microscopy (cryo-EM) structure of human chemerin receptor 1 (CMKLR1) bound to the C-terminal nonapeptide of chemokine (C9) in complex with Gi proteins. C9 inserts its C terminus into the binding pocket and is stabilized through hydrophobic interactions involving its Y1, F2, F6, and F8, as well as polar interactions between G4, S9, and several amino acids lining the binding pocket of CMKLR1. Microsecond scale molecular dynamics simulations support a balanced force distribution across the whole ligand-receptor interface that enhances thermodynamic stability of the captured binding pose of C9. The C9 interaction with CMKLR1 is drastically different from chemokine recognition by chemokine receptors, which follow a two-site two-step model. In contrast, C9 takes an "S"-shaped pose in the binding pocket of CMKLR1 much like angiotensin II in the AT1 receptor. Our mutagenesis and functional analyses confirmed the cryo-EM structure and key residues in the binding pocket for these interactions. Our findings provide a structural basis for chemerin recognition by CMKLR1 for the established chemotactic and adipokine activities.
History
DepositionJul 22, 2022-
Header (metadata) releaseApr 19, 2023-
Map releaseApr 19, 2023-
UpdateApr 19, 2023-
Current statusApr 19, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_33891.png

Downloads & links

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Map

FileDownload / File: emd_33891.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.83 Å
Density
Contour LevelBy AUTHOR: 0.128
Minimum - Maximum-0.6882565 - 1.1100652
Average (Standard dev.)-0.0007138387 (±0.02103983)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 265.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_33891_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_33891_half_map_2.map
Projections & Slices
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Histogram

Histogram (log scale)

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Sample components

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Entire : CMKLR1-Gi -scFv16 complex

EntireName: CMKLR1-Gi -scFv16 complex
Components
  • Complex: CMKLR1-Gi -scFv16 complex
    • Complex: Retinoic acid receptor responder protein 2
      • Protein or peptide: Retinoic acid receptor responder protein 2
    • Complex: Chemerin-like receptor 1, Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
      • Protein or peptide: Chemerin-like receptor 1
      • 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
    • Complex: scFV16
      • Protein or peptide: scFV16
  • Ligand: CHOLESTEROL

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Supramolecule #1: CMKLR1-Gi -scFv16 complex

SupramoleculeName: CMKLR1-Gi -scFv16 complex / type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 150 KDa

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Supramolecule #2: Retinoic acid receptor responder protein 2

SupramoleculeName: Retinoic acid receptor responder protein 2 / type: complex / ID: 2 / Chimera: Yes / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: Chemerin-like receptor 1, Guanine nucleotide-binding protein G(i)...

SupramoleculeName: Chemerin-like receptor 1, Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: complex / ID: 3 / Chimera: Yes / Parent: 1 / Macromolecule list: #2-#5
Source (natural)Organism: Vicugna pacos (alpaca)

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Supramolecule #4: scFV16

SupramoleculeName: scFV16 / type: complex / ID: 4 / Chimera: Yes / Parent: 1 / Macromolecule list: #6

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Macromolecule #1: Retinoic acid receptor responder protein 2

MacromoleculeName: Retinoic acid receptor responder protein 2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 1.063161 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
YFPGQFAFS

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Macromolecule #2: Chemerin-like receptor 1

MacromoleculeName: Chemerin-like receptor 1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 42.362848 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MRMEDEDYNT SISYGDEYPD YLDSIVVLED LSPLEARVTR IFLVVVYSIV CFLGILGNGL VIIIATFKMK KTVNMVWFLN LAVADFLFN VFLPIHITYA AMDYHWVFGT AMCKISNFLL IHNMFTSVFL LTIISSDRCI SVLLPVWSQN HRSVRLAYMA C MVIWVLAF ...String:
MRMEDEDYNT SISYGDEYPD YLDSIVVLED LSPLEARVTR IFLVVVYSIV CFLGILGNGL VIIIATFKMK KTVNMVWFLN LAVADFLFN VFLPIHITYA AMDYHWVFGT AMCKISNFLL IHNMFTSVFL LTIISSDRCI SVLLPVWSQN HRSVRLAYMA C MVIWVLAF FLSSPSLVFR DTANLHGKIS CFNNFSLSTP GSSSWPTHSQ MDPVGYSRHM VVTVTRFLCG FLVPVLIITA CY LTIVCKL QRNRLAKTKK PFKIIVTIII TFFLCWCPYH TLNLLELHHT AMPGSVFSLG LPLATALAIA NSCMNPILYV FMG QDFKKF KVALFSRLVN ALSEDTGHSS YPSHRSFTKM SSMNERTSMN ERETGML

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Macromolecule #3: Guanine nucleotide-binding protein G(i) subunit alpha-1

MacromoleculeName: Guanine nucleotide-binding protein G(i) subunit alpha-1
type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.153672 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: TLSAEDKAAV ERSKMIDRNL REDGEKAARE VKLLLLGAGE SGKSTIVKQM KIIHEAGYSE EECKQYKAVV YSNTIQSIIA IIRAMGRLK IDFGDSARAD DARQLFVLAG AAEEGFMTAE LAGVIKRLWK DSGVQACFNR SREYQLNDSA AYYLNDLDRI A QPNYIPTQ ...String:
TLSAEDKAAV ERSKMIDRNL REDGEKAARE VKLLLLGAGE SGKSTIVKQM KIIHEAGYSE EECKQYKAVV YSNTIQSIIA IIRAMGRLK IDFGDSARAD DARQLFVLAG AAEEGFMTAE LAGVIKRLWK DSGVQACFNR SREYQLNDSA AYYLNDLDRI A QPNYIPTQ QDVLRTRVKT TGIVETHFTF KDLHFKMFDV GAQRSERKKW IHCFEGVTAI IFCVALSDYD LVLAEDEEMN RM HESMKLF DSICNNKWFT DTSIILFLNK KDLFEEKIKK SPLTICYPEY AGSNTYEEAA AYIQCQFEDL NKRKDTKEIY THF TCSTDT KNVQFVFDAV TDVIIKNNLK DCGLF

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Macromolecule #4: 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: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.41693 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...String:
MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN

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Macromolecule #5: 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: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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Macromolecule #6: scFV16

MacromoleculeName: scFV16 / type: protein_or_peptide / ID: 6
Details: a single-chain variable fragment (scFv16) derived from a developed antibody that bind to the αN helix of Gαi subunit used to stabilize the GPCR-G protein complex (https://doi. ...Details: a single-chain variable fragment (scFv16) derived from a developed antibody that bind to the αN helix of Gαi subunit used to stabilize the GPCR-G protein complex (https://doi.org/10.1038/s41467-018-06002-w)
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Vicugna pacos (alpaca)
Molecular weightTheoretical: 26.337307 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (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

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Macromolecule #7: CHOLESTEROL

MacromoleculeName: CHOLESTEROL / type: ligand / ID: 7 / Number of copies: 5 / Formula: CLR
Molecular weightTheoretical: 386.654 Da
Chemical component information

ChemComp-CLR:
CHOLESTEROL / Cholesterol

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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

Concentration5 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.2 µm
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 1.13 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER / Details: alphafold
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.81 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 432349
FSC plot (resolution estimation)

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