1LX5

Crystal Structure of the BMP7/ActRII Extracellular Domain Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.238 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

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

  • Primary Citation of Related Structures:  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 do ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
bone morphogenetic protein 7
A
139Homo sapiensGene Names: BMP7 (OP1)
Find proteins for P18075 (Homo sapiens)
Go to Gene View: BMP7
Go to UniProtKB:  P18075
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Activin Type II Receptor
B
102Mus musculusGene Names: Acvr2a (Acvr2)
EC: 2.7.11.30
Find proteins for P27038 (Mus musculus)
Go to UniProtKB:  P27038
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAN
Query on MAN

Download SDF File 
Download CCD File 
A
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
BMA
Query on BMA

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Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NDG
Query on NDG

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Download CCD File 
B
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.238 
  • Space Group: P 62 2 2
Unit Cell:
Length (Å)Angle (°)
a = 140.920α = 90.00
b = 140.920β = 90.00
c = 90.810γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
CCP4data scaling
HKL-2000data collection
MLPHAREphasing
TRUNCATEdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-01
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2015-01-21
    Type: Refinement description