Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 9.47 kDa 
• Atom Count: 660 
• Residue Count: 88 
• Unique protein chains: 2

2KS1

Heterodimeric association of Transmembrane domains of ErbB1 and ErbB2 receptors Enabling Kinase Activation

• DOI: 10.2210/pdb2KS1/pdb

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


• Deposited: 2009-12-24 Released: 2010-06-09 
• Deposition Author(s): Mineev, K.S., Bocharov, E.V., Pustovalova, Y.E., Bocharova, O.V., Chupin, V.V., Arseniev, A.S.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 12 
• Selection Criteria: target function 

Literature

Spatial Structure of the Transmembrane Domain Heterodimer of ErbB1 and ErbB2 Receptor Tyrosine Kinases

Mineev, K.S., Bocharov, E.V., Pustovalova, Y.E., Bocharova, O.V., Chupin, V.V., Arseniev, A.S.

(2010) J Mol Biol 

• PubMed: 20471394 
• DOI: 10.1016/j.jmb.2010.05.016
• Primary Citation of Related Structures:  
  2KS1


• PubMed Abstract: 
  

Growth factor receptor tyrosine kinases of the ErbB family play a significant role in vital cellular processes and various cancers. During signal transduction across plasma membrane, ErbB receptors are involved in lateral homodimerization and heterodimerization with proper assembly of their extracellular single-span transmembrane (TM) and cytoplasmic domains. The ErbB1/ErbB2 heterodimer appears to be the strongest and most potent inducer of cellular transformation and mitogenic signaling compared to other ErbB homodimers and heterodimers. Spatial structure of the heterodimeric complex formed by TM domains of ErbB1 and ErbB2 receptors embedded into lipid bicelles was obtained by solution NMR. The ErbB1 and ErbB2 TM domains associate in a right-handed alpha-helical bundle through their N-terminal double GG4-like motif T(648)G(649)X(2)G(652)A(653) and glycine zipper motif T(652)X(3)S(656)X(3)G(660), respectively. The described heterodimer conformation is believed to support the juxtamembrane and kinase domain configuration corresponding to the receptor active state. The capability for multiple polar interactions, along with hydrogen bonding between TM segments, correlates with the observed highest affinity of the ErbB1/ErbB2 heterodimer, implying an important contribution of the TM helix-helix interaction to signal transduction.

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Organizational Affiliation: 

Division of Structural Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, ul. Miklukho-Maklaya, 16/10, Moscow 117997, Russia.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Receptor tyrosine-protein kinase erbB-2	A	44	Homo sapiens	Mutation(s): 0  Gene Names: ERBB2, HER2, NEU, NGL, MLN19 EC: 2.7.10.1
Membrane protein Mpstruc	Group:  TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group:  Epidermal Growth Factor Receptors (EGFRs)	Protein:  ErbB1/ErbB2 transmembrane segment heterodimer
Find proteins for P04626 (Homo sapiens) Explore P04626  Go to UniProtKB:  P04626
NIH Common Fund Data Resources
PHAROS  P04626 GTEx  ENSG00000141736

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Epidermal growth factor receptor	B	44	Homo sapiens	Mutation(s): 0  Gene Names: EGFR, ERBB1, ERBB, HER1 EC: 2.7.10.1
Membrane protein Mpstruc	Group:  TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group:  Epidermal Growth Factor Receptors (EGFRs)	Protein:  ErbB1/ErbB2 transmembrane segment heterodimer
Find proteins for P00533 (Homo sapiens) Explore P00533  Go to UniProtKB:  P00533
NIH Common Fund Data Resources
PHAROS  P00533 GTEx  ENSG00000146648

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 12 
• Selection Criteria: target function 
• OLDERADO: 2KS1 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2009-12-24 
• Released Date: 2010-06-09 
Deposition Author(s): Mineev, K.S., Bocharov, E.V., Pustovalova, Y.E., Bocharova, O.V., Chupin, V.V., Arseniev, A.S.

Revision History 

• Version 1.0: 2010-06-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance