1BTE

CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF THE TYPE II ACTIVIN RECEPTOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Three-finger toxin fold for the extracellular ligand-binding domain of the type II activin receptor serine kinase.

Greenwald, J.Fischer, W.H.Vale, W.W.Choe, S.

(1999) Nat.Struct.Mol.Biol. 6: 18-22

  • DOI: 10.1038/4887

  • PubMed Abstract: 
  • The transforming growth factor beta (TGFbeta) superfamily of cytokines elicit diverse biological responses by interacting with two distinct, but structurally related transmembrane receptor serine kinases (type I and type II). The binding of these dim ...

    The transforming growth factor beta (TGFbeta) superfamily of cytokines elicit diverse biological responses by interacting with two distinct, but structurally related transmembrane receptor serine kinases (type I and type II). The binding of these dimeric ligands to the type II receptor is the first event in transmembrane signaling for this family. Here we report the 1.5 A resolution crystal structure of the extracellular ligand-binding domain of the type II activin receptor (ActRII-ECD), which reveals a fold similar to that of a class of toxins known as three-finger toxins. This fold is primarily dictated by disulfide bonds formed by eight conserved cysteines, with a characteristic spacing, and thus is likely to be shared by most of the type I and II receptors for the TGFbeta family. Sequence comparison with an evolutionarily distant activin binding-protein identifies several conserved residues, including two hydrophobic clusters that may form binding surfaces for activin and the type I receptor.


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ACTIVIN RECEPTOR TYPE II)
A, B
97Mus musculusGene Names: Acvr2a (Acvr2)
EC: 2.7.11.30
Find proteins for P27038 (Mus musculus)
Go to UniProtKB:  P27038
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
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: 1.5 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.181 
  • Space Group: P 3
Unit Cell:
Length (Å)Angle (°)
a = 71.630α = 90.00
b = 71.630β = 90.00
c = 37.380γ = 120.00
Software Package:
Software NamePurpose
DMmodel building
REFMACrefinement
MOSFLMdata reduction
MLPHAREphasing
ARPmodel building
SCALAdata scaling
CCP4data scaling
DMphasing
ARP/wARPmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-02-09
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance