Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 26081.67 
• Atom Count: 1828 
• Residue Count: 230 
• Unique protein chains: 2

1E0A

Cdc42 complexed with the GTPase binding domain of p21 activated kinase

• DOI: 10.2210/pdb1E0A/pdb

• Classification: SIGNALLING PROTEIN/KINASE
• Organism(s): Homo sapiens, Rattus norvegicus
• Expression System: Escherichia coli BL21(DE3), Escherichia coli BL21
• Mutation(s): 1 


• Deposited: 2000-03-16 Released: 2000-04-18 
• Deposition Author(s): Morreale, A., Venkatesan, M., Mott, H.R., Owen, D., Nietlispach, D., Lowe, P.N., Laue, E.D.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: NO VIOLATIONS 

Literature

Solution Structure of Cdc42 Bound to the Gtpase Binding Domian of Pak

Morreale, A., Venkatesan, M., Mott, H.R., Owen, D., Nietlispach, D., Lowe, P.N., Laue, E.D.

(2000) Nat.Struct.Mol.Biol. 7: 384

• PubMed: 10802735 
• DOI: 10.1038/75158


• PubMed Abstract: 
  

The Rho family GTPases, Cdc42, Rac and Rho, regulate signal transduction pathways via interactions with downstream effector proteins. We report here the solution structure of Cdc42 bound to the GTPase binding domain of alphaPAK, an effector of both Cdc42 and Rac. The structure is compared with those of Cdc42 bound to similar fragments of ACK and WASP, two effector proteins that bind only to Cdc42. The N-termini of all three effector fragments bind in an extended conformation to strand beta2 of Cdc42, and contact helices alpha1 and alpha5. The remaining residues bind to switches I and II of Cdc42, but in a significantly different manner. The structure, together with mutagenesis data, suggests reasons for the specificity of these interactions and provides insight into the mechanism of PAK activation.

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Organizational Affiliation: 

Cambridge Centre for Molecular Recognition, Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, UK.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
G25K GTP-BINDING PROTEIN, PLACENTAL ISOFORM (GP), CDC42 HOMOLOG	A	184	Homo sapiens	Mutation(s): 1  Gene Names: CDC42
Find proteins for P60953 (Homo sapiens) Go to Gene View: CDC42 Go to UniProtKB:  P60953

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
SERINE/THREONINE-PROTEIN KINASE PAK-ALPHA	B	46	Rattus norvegicus	Mutation(s): 0  Gene Names: Pak1 EC: 2.7.11.1
Find proteins for P35465 (Rattus norvegicus) Go to UniProtKB:  P35465

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
MG	A	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N
GNP	A	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER C10 H17 N6 O13 P3 UQABYHGXWYXDTK-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: NO VIOLATIONS 
• Olderado: 1E0A Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-03-16 
• Released Date: 2000-04-18 
• Deposition Author(s): Morreale, A., Venkatesan, M., Mott, H.R., Owen, D., Nietlispach, D., Lowe, P.N., Laue, E.D.

Revision History 

• Version 1.0: 2000-04-18
  Type: Initial release
• Version 1.1: 2013-05-15
  Type: Atomic model, Database references, Derived calculations, Non-polymer description, Other, Source and taxonomy, Structure summary, Version format compliance
• Version 1.2: 2014-02-05
  Type: Source and taxonomy