8PR7 | pdb_00008pr7

Aurora-A in complex with CEP192 and an inhibitory monobody

• PDB DOI: https://doi.org/10.2210/pdb8PR7/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2023-07-12 Released: 2024-07-24 
• Deposition Author(s): Miles, J.A., Bayliss, R.
• Funding Organization(s): Biotechnology and Biological Sciences Research Council (BBSRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.76 Å
• R-Value Free: 
  0.256 (Depositor), 0.256 (DCC) 
• R-Value Work: 
  0.202 (Depositor) 

Starting Model: experimental

Literature

CEP192 localises mitotic Aurora-A activity by priming its interaction with TPX2.

Holder, J., Miles, J.A., Batchelor, M., Popple, H., Walko, M., Yeung, W., Kannan, N., Wilson, A.J., Bayliss, R., Gergely, F.

(2024) EMBO J 43: 5381-5420

• PubMed: 39327527 
• DOI: https://doi.org/10.1038/s44318-024-00240-z
• Primary Citation Related Structures: 
  8PR7


• PubMed Abstract: 
  

  Aurora-A is an essential cell-cycle kinase with critical roles in mitotic entry and spindle dynamics. These functions require binding partners such as CEP192 and TPX2, which modulate both kinase activity and localisation of Aurora-A. Here we investigate the structure and role of the centrosomal Aurora-A:CEP192 complex in the wider molecular network. We find that CEP192 wraps around Aurora-A, occupies the binding sites for mitotic spindle-associated partners, and thus competes with them. Comparison of two different Aurora-A conformations reveals how CEP192 modifies kinase activity through the site used for TPX2-mediated activation. Deleting the Aurora-A-binding interface in CEP192 prevents centrosomal accumulation of Aurora-A, curtails its activation-loop phosphorylation, and reduces spindle-bound TPX2:Aurora-A complexes, resulting in error-prone mitosis. Thus, by supplying the pool of phosphorylated Aurora-A necessary for TPX2 binding, CEP192:Aurora-A complexes regulate spindle function. We propose an evolutionarily conserved spatial hierarchy, which protects genome integrity through fine-tuning and correctly localising Aurora-A activity.

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Organizational Affiliation: 
• Department of Biochemistry, University of Oxford, Oxford, United Kingdom.
Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.
School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom.
School of Chemistry, Faculty of Engineering and Physical Sciences, University of Leeds, Leeds, United Kingdom.
Department of Biochemistry & Molecular Biology, University of Georgia, Athens, GA, USA.
School of Chemistry, University of Birmingham, Birmingham, United Kingdom.
Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom. [e-mail].
School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom. [e-mail].
Department of Biochemistry, University of Oxford, Oxford, United Kingdom. [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A2B2C1D1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Hetero 4-mer - A2B2 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 102.49 kDa 
• Atom Count: 5,920 
• Modeled Residue Count: 772 
• Deposited Residue Count: 896 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aurora kinase A	A, D	283	Homo sapiens	Mutation(s): 7  Gene Names: AURKA, AIK, AIRK1, ARK1, AURA, AYK1, BTAK, IAK1, STK15, STK6 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O14965 (Homo sapiens) Explore O14965  Go to UniProtKB:  O14965
PHAROS:  O14965 GTEx:  ENSG00000087586

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Monobody	B, E	96	synthetic construct	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Centrosomal protein of 192 kDa	C, F	69	Homo sapiens	Mutation(s): 0  Gene Names: CEP192, KIAA1569, PP8407
UniProt & NIH Common Fund Data Resources
Find proteins for Q8TEP8 (Homo sapiens) Explore Q8TEP8  Go to UniProtKB:  Q8TEP8
PHAROS:  Q8TEP8 GTEx:  ENSG00000101639

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP (Subject of Investigation/LOI)	G [auth A], H [auth D]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
GOL	I [auth D]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
MG	J [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.76 Å
• R-Value Free:  0.256 (Depositor), 0.256 (DCC) 
• R-Value Work:  0.202 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 112.58	α = 90
b = 112.58	β = 90
c = 216.31	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-07-24 
Deposition Author(s): Miles, J.A., Bayliss, R.

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Funding Organization	Location	Grant Number
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/V003577/1

Revision History  

• Version 1.0: 2024-07-24
  Type: Initial release
  
• Version 1.1: 2025-02-05
  Changes: Database references, Structure summary