4QXF

crystal structure of human LGR4 and Rspo1

• PDB DOI: https://doi.org/10.2210/pdb4QXF/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens, Eptatretus burgeri
• Expression System: Spodoptera frugiperda
• Mutation(s): Yes 


• Deposited: 2014-07-20 Released: 2014-10-08 
• Deposition Author(s): Xu, J.G., Huang, C., Zhou, Y., Zhu, Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.243 
• R-Value Work: 0.213 
• R-Value Observed: 0.215 

Literature

crystal structure of human LGR4 and Rspo1

Xu, J.G., Huang, C., Zhou, Y., Zhu, Y.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 88.67 kDa 
• Atom Count: 6,122 
• Modelled Residue Count: 758 
• Deposited Residue Count: 806 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Leucine-rich repeat-containing G-protein coupled receptor 4, Variable lymphocyte receptor B	A, B	301	Homo sapiens, Eptatretus burgeri This entity is chimeric	Mutation(s): 1  Gene Names: GPR48, LGR4, VLRB
UniProt & NIH Common Fund Data Resources
Find proteins for Q4G1L2 (Eptatretus burgeri) Explore Q4G1L2  Go to UniProtKB:  Q4G1L2
Find proteins for Q9BXB1 (Homo sapiens) Explore Q9BXB1  Go to UniProtKB:  Q9BXB1
PHAROS:  Q9BXB1 GTEx:  ENSG00000205213
UniProt Groups	Q9BXB1Q4G1L2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
R-spondin-1	C [auth E], D [auth C]	102	Homo sapiens	Mutation(s): 0  Gene Names: RSPO1
UniProt & NIH Common Fund Data Resources
Find proteins for Q2MKA7 (Homo sapiens) Explore Q2MKA7  Go to UniProtKB:  Q2MKA7
PHAROS:  Q2MKA7 GTEx:  ENSG00000169218

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.243 
• R-Value Work: 0.213 
• R-Value Observed: 0.215 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.867	α = 90
b = 137.913	β = 100.13
c = 82.56	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
PHASES	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-10-08 
Deposition Author(s): Xu, J.G., Huang, C., Zhou, Y., Zhu, Y.

Revision History  

• Version 1.0: 2014-10-08
  Type: Initial release
  
• Version 1.1: 2017-08-02
  Changes: Refinement description, Source and taxonomy
• Version 1.2: 2023-11-08
  Changes: Data collection, Database references, Refinement description