1LX5

Crystal Structure of the BMP7/ActRII Extracellular Domain Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.240 

wwPDB Validation   3D Report Full Report



Literature

The BMP7/ActRII Extracellular Domain Complex Provides New Insights into the Cooperative Nature of Receptor Assembly

Greenwald, J.Groppe, J.Gray, P.Wiater, E.Kwiatkowski, W.Vale, W.Choe, S.

(2003) Mol Cell 11: 605-617

  • DOI: 10.1016/s1097-2765(03)00094-7
  • Primary Citation of Related Structures:  
    1LX5, 1LXI

  • PubMed Abstract: 
  • Activins and bone morphogenetic proteins (BMPs) elicit diverse biological responses by signaling through two pairs of structurally related type I and type II receptors. Here we report the crystal structure of BMP7 in complex with the extracellular domain ...

    Activins and bone morphogenetic proteins (BMPs) elicit diverse biological responses by signaling through two pairs of structurally related type I and type II receptors. Here we report the crystal structure of BMP7 in complex with the extracellular domain (ECD) of the activin type II receptor. Our structure produces a compelling four-receptor model, revealing that the types I and II receptor ECDs make no direct contacts. Nevertheless, we find that truncated receptors lacking their cytoplasmic domain retain the ability to cooperatively assemble in the cell membrane. Also, the affinity of BMP7 for its low-affinity type I receptor ECD increases 5-fold in the presence of its type II receptor ECD. Taken together, our results provide a view of the ligand-mediated cooperative assembly of BMP and activin receptors that does not rely on receptor-receptor contacts.


    Organizational Affiliation

    Structural Biology Laboratory, The Salk Institute, La Jolla, CA 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
bone morphogenetic protein 7 A139Homo sapiensMutation(s): 0 
Gene Names: BMP7OP1
Find proteins for P18075 (Homo sapiens)
Explore P18075 
Go to UniProtKB:  P18075
NIH Common Fund Data Resources
PHAROS:  P18075
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Activin Type II Receptor B102Mus musculusMutation(s): 0 
Gene Names: Acvr2Acvr2a
EC: 2.7.11.30
Find proteins for P27038 (Mus musculus)
Explore P27038 
Go to UniProtKB:  P27038
NIH Common Fund Data Resources
IMPC:  MGI:102806
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-4)][alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
C
6 N-Glycosylation Oligosaccharides Interaction
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
B
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.240 
  • Space Group: P 62 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 140.92α = 90
b = 140.92β = 90
c = 90.81γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
TRUNCATEdata reduction
MLPHAREphasing
REFMACrefinement
HKL-2000data reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-01
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2015-01-21
    Changes: Refinement description
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary