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- EMDB-62793: Cryo-EM structure of the chemokine-like receptor 1 in complex wit... -

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Basic information

Entry
Database: EMDB / ID: EMD-62793
TitleCryo-EM structure of the chemokine-like receptor 1 in complex with chemerin and Gi1
Map dataComposite map of chemerin-CMKLR1-G complex
Sample
  • Complex: The full length chemerin bound CMKLR1-Gi complex
    • 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: Retinoic acid receptor responder protein 2
    • Protein or peptide: Chemerin-like receptor 1
KeywordsGPCR / CMKLR1 / MEMBRANE PROTEIN
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 / negative regulation of interleukin-12 production / embryonic digestive tract development / antifungal humoral response ...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 / negative regulation of interleukin-12 production / embryonic digestive tract development / antifungal humoral response / positive regulation of chemotaxis / response to caloric restriction / Class A/1 (Rhodopsin-like receptors) / complement receptor mediated signaling pathway / : / positive regulation of macrophage chemotaxis / positive regulation of systemic arterial blood pressure / positive regulation of fat cell differentiation / retinoid metabolic process / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / regulation of calcium-mediated signaling / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / cellular response to forskolin / response to activity / regulation of mitotic spindle organization / chemokine-mediated signaling pathway / skeletal system development / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / positive regulation of protein phosphorylation / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / G protein-coupled receptor activity / chemotaxis / centriolar satellite / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / insulin receptor signaling pathway / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G beta:gamma signalling through BTK / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / GDP binding / Platelet degranulation / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / 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 / positive regulation of cold-induced thermogenesis / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / extracellular vesicle / sensory perception of taste / sperm principal piece / Thrombin signalling through proteinase activated receptors (PARs) / extracellular matrix / signaling receptor complex adaptor activity / adenylate cyclase-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / signaling receptor activity / retina development in camera-type eye / GTPase binding / fibroblast proliferation / G protein activity / midbody / Ca2+ pathway
Similarity search - Function
Chemerin-like receptor 1 / Retinoic acid receptor responder protein 2 / Formyl peptide receptor-related / Cystatin superfamily / G-protein alpha subunit, group I / G protein alpha subunit, helical insertion / G protein alpha subunit / Guanine nucleotide binding protein (G-protein), alpha subunit / G-protein alpha subunit / G-alpha domain profile. ...Chemerin-like receptor 1 / Retinoic acid receptor responder protein 2 / Formyl peptide receptor-related / Cystatin superfamily / G-protein alpha subunit, group I / G protein alpha subunit, helical insertion / G protein alpha subunit / Guanine nucleotide binding protein (G-protein), alpha subunit / G-protein alpha subunit / G-alpha domain profile. / 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 / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / 7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 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. / 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)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsZhu Y / He M / Wu B / Zhao Q
Funding support China, 3 items
OrganizationGrant numberCountry
National Science Foundation (NSF, China)2022YFA1302900 China
National Natural Science Foundation of China (NSFC)82121005 China
National Natural Science Foundation of China (NSFC)32401012 China
CitationJournal: Protein Cell / Year: 2025
Title: Structural insights into the distinct ligand recognition and signaling of the chemerin receptors CMKLR1 and GPR1.
Authors: Xiaowen Lin / Lechen Zhao / Heng Cai / Xiaohua Chang / Yuxuan Tang / Tianyu Luo / Mengdan Wu / Cuiying Yi / Limin Ma / Xiaojing Chu / Shuo Han / Qiang Zhao / Beili Wu / Maozhou He / Ya Zhu /
History
DepositionDec 19, 2024-
Header (metadata) releaseMar 12, 2025-
Map releaseMar 12, 2025-
UpdateJun 11, 2025-
Current statusJun 11, 2025Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_62793.png

Downloads & links

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Map

FileDownload / File: emd_62793.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationComposite map of chemerin-CMKLR1-G complex
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 256 pix.
= 274.176 Å		1.07 Å/pix.
x 256 pix.
= 274.176 Å		1.07 Å/pix.
x 256 pix.
= 274.176 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.071 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.4
Minimum - Maximum-2.171766 - 6.316623
Average (Standard dev.)0.016443815 (±0.07124178)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 274.176 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : The full length chemerin bound CMKLR1-Gi complex

EntireName: The full length chemerin bound CMKLR1-Gi complex
Components
  • Complex: The full length chemerin bound CMKLR1-Gi complex
    • 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: Retinoic acid receptor responder protein 2
    • Protein or peptide: Chemerin-like receptor 1

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Supramolecule #1: The full length chemerin bound CMKLR1-Gi complex

SupramoleculeName: The full length chemerin bound CMKLR1-Gi complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
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: 40.447141 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKCTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKCTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVTAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM 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: 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

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 frugiperda (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: Retinoic acid receptor responder protein 2

MacromoleculeName: Retinoic acid receptor responder protein 2 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 15.904175 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
ELTEAQRRGL QVALEEFHKH PPVQWAFQET SVESAVDTPF PAGIFVRLEF KLQQTSCRKR DWKKPECKVR PNGRKRKCLA CIKLGSEDK VLGRLVHCPI ETQVLREAEE HQETQCLRVQ RAGEDPHSFY FPGQFAFS

UniProtKB: Retinoic acid receptor responder protein 2

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Macromolecule #5: Chemerin-like receptor 1

MacromoleculeName: Chemerin-like receptor 1 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 47.393133 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 ERETGMLEFL EVLFQGPWSH PQFEKGGGSG GGSG GSAWS HPQFEKDYKD DDDK

UniProtKB: Chemerin-like receptor 1

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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

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 70.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: NONE
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 89786
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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