Biological Assembly 1  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Macromolecule Content

• Total Structure Weight: 46.06 kDa 
• Atom Count: 3,012 
• Modelled Residue Count: 377 
• Deposited Residue Count: 410 
• Unique protein chains: 2

 1ES7

COMPLEX BETWEEN BMP-2 AND TWO BMP RECEPTOR IA ECTODOMAINS

• PDB DOI: 10.2210/pdb1ES7/pdb

• Classification: CYTOKINE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-04-07 Released: 2000-10-07 
• Deposition Author(s): Kirsch, T., Sebald, W., Dreyer, M.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.229 
• R-Value Work: 0.191 

Literature

Crystal structure of the BMP-2-BRIA ectodomain complex.

Kirsch, T., Sebald, W., Dreyer, M.K.

(2000) Nat Struct Biol 7: 492-496

• PubMed: 10881198 
• DOI: 10.1038/75903
• Primary Citation of Related Structures:  
  1ES7


• PubMed Abstract: 
  

Bone morphogenetic proteins (BMPs) belong to the large transforming growth factor-beta (TGF-beta) superfamily of multifunctional cytokines. BMP-2 can induce ectopic bone and cartilage formation in adult vertebrates and is involved in central steps in early embryonal development in animals. Signaling by these cytokines requires binding of two types of transmembrane serine/threonine receptor kinase chains classified as type I and type II. Here we report the crystal structure of human dimeric BMP-2 in complex with two high affinity BMP receptor IA extracellular domains (BRIAec). The receptor chains bind to the 'wrist' epitopes of the BMP-2 dimer and contact both BMP-2 monomers. No contacts exist between the receptor domains. The model reveals the structural basis for discrimination between type I and type II receptors and the variability of receptor-ligand interactions that is seen in BMP-TGF-beta systems.

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Related Citations: 

• Crystal Structure of Human Bone Morphogenetic Protein-2 at 2.7 A Resolution
  Scheufler, C., Sebald, W., Hulsmeyer, M.
  (1999) J Mol Biol 287: 103

• Isolation of Recombinant BMP Receptor IA Ectodomain and its 2:1 Complex with BMP-2
  Kirsch, T., Nickel, J., Sebald, W.
  (2000) FEBS Lett 468: 215

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Organizational Affiliation: 

Physiologische Chemie II, Biozentrum der Universität Würzburg, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BONE MORPHOGENETIC PROTEIN-2	A, C	116	Homo sapiens	Mutation(s): 0  Gene Names: BMP2, BMP2A
UniProt & NIH Common Fund Data Resources
Find proteins for P12643 (Homo sapiens) Explore P12643  Go to UniProtKB:  P12643
PHAROS:  P12643

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BONE MORPHOGENETIC PROTEIN RECEPTOR IA	B, D	89	Homo sapiens	Mutation(s): 0  Gene Names: BMPR1A, ACVRLK3, ALK3 EC: 2.7.1 (PDB Primary Data), 2.7.11.30 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P36894 (Homo sapiens) Explore P36894  Go to UniProtKB:  P36894
PHAROS:  P36894

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.229 
• R-Value Work: 0.191 
• Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 109.33	α = 90
b = 109.33	β = 90
c = 101.905	γ = 120

Software Package:

Software Name	Purpose
FRAMBO	data collection
XDS	data reduction
AMoRE	phasing
CNS	refinement
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-10-07 
Deposition Author(s): Kirsch, T., Sebald, W., Dreyer, M.K.

Revision History  

• Version 1.0: 2000-10-07
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-04
  Changes: Refinement description
• Version 1.4: 2018-01-24
  Changes: Database references
• Version 1.5: 2018-04-04
  Changes: Data collection