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- EMDB-62321: Structure of the complex of LGR4 with NB18 -

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Basic information

Entry
Database: EMDB / ID: EMD-62321
TitleStructure of the complex of LGR4 with NB18
Map data
Sample
  • Complex: Structure of the LGR4 and NB18
    • Protein or peptide: Leucine-rich repeat-containing G-protein coupled receptor 4
    • Protein or peptide: MB52
    • Protein or peptide: NB18
KeywordsLGR4 NB18 / MEMBRANE PROTEIN
Function / homology
Function and homology information


metanephric glomerulus development / metanephric nephron tubule morphogenesis / epithelial cell proliferation involved in renal tubule morphogenesis / protein-hormone receptor activity / intestinal stem cell homeostasis / negative regulation of toll-like receptor signaling pathway / positive regulation of branching involved in ureteric bud morphogenesis / male genitalia development / bone remodeling / digestive tract development ...metanephric glomerulus development / metanephric nephron tubule morphogenesis / epithelial cell proliferation involved in renal tubule morphogenesis / protein-hormone receptor activity / intestinal stem cell homeostasis / negative regulation of toll-like receptor signaling pathway / positive regulation of branching involved in ureteric bud morphogenesis / male genitalia development / bone remodeling / digestive tract development / negative regulation of cold-induced thermogenesis / negative regulation of cytokine production / bone mineralization / hair follicle development / Regulation of FZD by ubiquitination / circadian regulation of gene expression / G protein-coupled receptor activity / Wnt signaling pathway / osteoblast differentiation / transmembrane signaling receptor activity / positive regulation of canonical Wnt signaling pathway / spermatogenesis / innate immune response / plasma membrane
Similarity search - Function
Glycoprotein hormone receptor family / Leucine rich repeat N-terminal domain / Leucine-rich repeat N-terminal domain / Leucine rich repeat N-terminal domain / Leucine Rich Repeat / Leucine-rich repeats, bacterial type / Leucine-rich repeat, SDS22-like subfamily / Leucine rich repeat / Leucine-rich repeat, typical subtype / Leucine-rich repeats, typical (most populated) subfamily ...Glycoprotein hormone receptor family / Leucine rich repeat N-terminal domain / Leucine-rich repeat N-terminal domain / Leucine rich repeat N-terminal domain / Leucine Rich Repeat / Leucine-rich repeats, bacterial type / Leucine-rich repeat, SDS22-like subfamily / Leucine rich repeat / Leucine-rich repeat, typical subtype / Leucine-rich repeats, typical (most populated) subfamily / Leucine-rich repeat profile. / Leucine-rich repeat / Leucine-rich repeat domain superfamily / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family)
Similarity search - Domain/homology
Leucine-rich repeat-containing G-protein coupled receptor 4
Similarity search - Component
Biological speciesHomo sapiens (human) / Camelus dromedarius (Arabian camel)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.63 Å
AuthorsGeng Y / Hu FZ / Qiao HR
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Structure of the complex of LGR4 with NB18
Authors: Hu FZ / Qiao HR
History
DepositionNov 8, 2024-
Header (metadata) releaseJul 16, 2025-
Map releaseJul 16, 2025-
UpdateJul 16, 2025-
Current statusJul 16, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_62321.png

Downloads & links

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Map

FileDownload / File: emd_62321.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 360 pix.
= 385.56 Å		1.07 Å/pix.
x 360 pix.
= 385.56 Å		1.07 Å/pix.
x 360 pix.
= 385.56 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: 0.07
Minimum - Maximum-0.22581977 - 0.5282245
Average (Standard dev.)-0.00006897056 (±0.0075165625)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 385.56 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_62321_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_62321_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Structure of the LGR4 and NB18

EntireName: Structure of the LGR4 and NB18
Components
  • Complex: Structure of the LGR4 and NB18
    • Protein or peptide: Leucine-rich repeat-containing G-protein coupled receptor 4
    • Protein or peptide: MB52
    • Protein or peptide: NB18

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Supramolecule #1: Structure of the LGR4 and NB18

SupramoleculeName: Structure of the LGR4 and NB18 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Leucine-rich repeat-containing G-protein coupled receptor 4

MacromoleculeName: Leucine-rich repeat-containing G-protein coupled receptor 4
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 104.45057 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MPGPLGLLCF LALGLLGSAG PSGAAPPLCA APCSCDGDRR VDCSGKGLTA VPEGLSAFTQ ALDISMNNIT QLPEDAFKNF PFLEELQLA GNDLSFIHPK ALSGLKELKV LTLQNNQLKT VPSEAIRGLS ALQSLRLDAN HITSVPEDSF EGLVQLRHLW L DDNSLTEV ...String:
MPGPLGLLCF LALGLLGSAG PSGAAPPLCA APCSCDGDRR VDCSGKGLTA VPEGLSAFTQ ALDISMNNIT QLPEDAFKNF PFLEELQLA GNDLSFIHPK ALSGLKELKV LTLQNNQLKT VPSEAIRGLS ALQSLRLDAN HITSVPEDSF EGLVQLRHLW L DDNSLTEV PVHPLSNLPT LQALTLALNK ISSIPDFAFT NLSSLVVLHL HNNKIRSLSQ HCFDGLDNLE TLDLNYNNLG EF PQAIKAL PSLKELGFHS NSISVIPDGA FDGNPLLRTI HLYDNPLSFV GNSAFHNLSD LHSLVIRGAS MVQQFPNLTG TVH LESLTL TGTKISSIPN NLCQEQKMLR TLDLSYNNIR DLPSFNGCHA LEEISLQRNQ IYQIKEGTFQ GLISLRILDL SRNL IHEIH SRAFATLGPI TNLDVSFNEL TSFPTEGLNG LNQLKLVGNF KLKEALAAKD FVNLRSLSVP YAYQCCAFWG CDSYA NLNT EDNSLQDHSV AQEKGTADAA NVTSTLENEE HSQIIIHCTP STGAFKPCEY LLGSWMIRLT VWFIFLVALF FNLLVI LTT FASCTSLPSS KLFIGLISVS NLFMGIYTGI LTFLDAVSWG RFAEFGIWWE TGSGCKVAGF LAVFSSESAI FLLMLAT VE RSLSAKDIMK NGKSNHLKQF RVAALLAFLG ATVAGCFPLF HRGEYSASPL CLPFPTGETP SLGFTVTLVL LNSLAFLL M AVIYTKLYCN LEKEDLSENS QSSMIKHVAW LIFTNCIFFC PVAFFSFAPL ITAISISPEI MKSVTLIFFP LPACLNPVL YVFFNPKFKE DWKLLKRRVT KKSGSVSVSI SSQGGCLEQD FYYDCGMYSH LQGNLTVCDC CESFLLTKPV SCKHLIKSHS CPALAVASC QRPEGYWSDC GTQSAHSDYA DEEDSFVSDS SDQVQACGRA CFYQSRGFPL VRYAYNLPRV K

UniProtKB: Leucine-rich repeat-containing G-protein coupled receptor 4

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Macromolecule #2: MB52

MacromoleculeName: MB52 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Camelus dromedarius (Arabian camel)
Molecular weightTheoretical: 16.204014 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
QVQLVESGGG LVNSKGEKLE AHVTTSKYGS LRLSCAASGY TYSPYCMGWF RQAPGKAREG VATVDLDGST IYADSVKGRF TISQDNAKN TLYLQMNSLK PEDTAMYYCA SRTRAGVTCG LNWAIFSYWG QGTQVTVSSH HHHHHEPEA

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Macromolecule #3: NB18

MacromoleculeName: NB18 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Camelus dromedarius (Arabian camel)
Molecular weightTheoretical: 17.972002 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MKYLLPTAAA GLLLLAAQPA MAQVQLQESG GGSVQAGGSL RLSCAASGYT YSRTCMAWFR QAPGKEREGI ATINSDGTTT YADSVKGRF TISRDNAKNT LSLQMNSLKP EDTAMYYCAA ASLSTRGCSR AEWEYRYWGQ GTQVTVSSAA AYPYDVPDYG S HHHHHH

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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 TALOS ARCTICA
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 70.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING ONLY
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.63 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 70544
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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