Biological Assembly 1  

 3D View: Structure | Electron Density | 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: 30971.42 
• Atom Count: 2158 
• Residue Count: 268 
• Unique protein chains: 2

1CXZ

CRYSTAL STRUCTURE OF HUMAN RHOA COMPLEXED WITH THE EFFECTOR DOMAIN OF THE PROTEIN KINASE PKN/PRK1

• DOI: 10.2210/pdb1CXZ/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): 1 


• Deposited: 1999-08-31 Released: 1999-10-08 
• Deposition Author(s): Maesaki, R., Ihara, K., Shimizu, T., Kuroda, S., Kaibuchi, K., Hakoshima, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.268 
• R-Value Work: 0.214 

Literature

The structural basis of Rho effector recognition revealed by the crystal structure of human RhoA complexed with the effector domain of PKN/PRK1.

Maesaki, R., Ihara, K., Shimizu, T., Kuroda, S., Kaibuchi, K., Hakoshima, T.

(1999) Mol.Cell 4: 793-803

• PubMed: 10619026 


• PubMed Abstract: 
  

The small G protein Rho has emerged as a key regulator of cellular events involving cytoskeletal reorganization. Here we report the 2.2 A crystal structure of RhoA bound to an effector domain of protein kinase PKN/PRK1. The structure reveals the antiparallel coiled-coil finger (ACC finger) fold of the effector domain that binds to the Rho specificity-determining regions containing switch I, beta strands B2 and B3, and the C-terminal alpha helix A5, predominantly by specific hydrogen bonds. The ACC finger fold is distinct from those for other small G proteins and provides evidence for the diverse ways of effector recognition. Sequence analysis based on the structure suggests that the ACC finger fold is widespread in Rho effector proteins.

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Related Citations: 

• Biochemical and crystallographic characterization of a Rho effector domain of the protein serine/threonine kinase N in a complex with RhoA
  Maesaki, R.,Shimizu, T.,Ihara, K.,Kuroda, S.,Kaibuchi, K.,Hakoshima, T.
  (1999) J.Struct.Biol. 126: 166




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Organizational Affiliation: 

Division of Structural Biology, Nara Institute of Science and Technology, Japan.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (HIS-TAGGED TRANSFORMING PROTEIN RHOA(0-181))	A	182	Homo sapiens	Mutation(s): 1  Gene Names: RHOA (ARH12, ARHA, RHO12) EC: 3.6.5.2
Find proteins for P61586 (Homo sapiens) Go to Gene View: RHOA Go to UniProtKB:  P61586

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (PKN)	B	86	Homo sapiens	Mutation(s): 0  Gene Names: PKN1 (PAK1, PKN, PRK1, PRKCL1) EC: 2.7.11.13
Find proteins for Q16512 (Homo sapiens) Go to Gene View: PKN1 Go to UniProtKB:  Q16512

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
MG	A	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N
GSP	A	5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE C10 H16 N5 O13 P3 S XOFLBQFBSOEHOG-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.268 
• R-Value Work: 0.214 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 66.900	α = 90.00
b = 66.900	β = 90.00
c = 149.500	γ = 90.00

Software Package:

Software Name	Purpose
CNS	refinement
AMoRE	phasing
SCALEPACK	data scaling
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-08-31 
• Released Date: 1999-10-08 
• Deposition Author(s): Maesaki, R., Ihara, K., Shimizu, T., Kuroda, S., Kaibuchi, K., Hakoshima, T.

Revision History 

• Version 1.0: 1999-10-08
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2018-03-14
  Type: Database references