5A0O | pdb_00005a0o

adhiron raised against p300

• PDB DOI: https://doi.org/10.2210/pdb5A0O/pdb

• Classification: DE NOVO PROTEIN
• Organism(s): synthetic construct
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2015-04-21 Released: 2015-07-15 
• Deposition Author(s): Kyle, H.F., Wickson, K.F., Stott, J., Burslem, G.M., Breeze, A.L., Tiede, C., Tomlinson, D.C., Warriner, S.L., Nelson, A., Wilson, A.J., Edwards, T.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.73 Å
• R-Value Free: 
  0.278 (Depositor), 0.276 (DCC) 
• R-Value Work: 
  0.239 (Depositor), 0.237 (DCC) 
• R-Value Observed: 
  0.241 (Depositor) 

Starting Model: experimental

Literature

Exploration of the Hif-1Alpha.P300 Interface Using Peptide and Adhiron Phage Display Technologies

Kyle, H.F., Wickson, K.F., Stott, J., Burslem, G.M., Breeze, A.L., Tiede, C., Tomlinson, D.C., Warriner, S.L., Nelson, A., Wilson, A.J., Edwards, T.A.

(2015) Mol Biosyst 11: 2738

• PubMed: 26135796 
• DOI: https://doi.org/10.1039/c5mb00284b
• Primary Citation Related Structures: 
  5A0O


• PubMed Abstract: 
  

  The HIF-1α/p300 protein-protein interaction plays a key role in tumor metabolism and thus represents a high value target for anticancer drug-development. Although several studies have identified inhibitor candidates using rationale design, more detailed understanding of the interaction and binding interface is necessary to inform development of superior inhibitors. In this work, we report a detailed biophysical analysis of the native interaction with both peptide and Adhiron phage display experiments to identify novel binding motifs and binding regions of the surface of p300 to inform future inhibitor design.

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Organizational Affiliation: 
• Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK. [e-mail].

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content 

• Total Structure Weight: 24.93 kDa 
• Atom Count: 1,574 
• Modeled Residue Count: 186 
• Deposited Residue Count: 214 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ADHIRON	A [auth B], B [auth S]	107	synthetic construct	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.73 Å
• R-Value Free:  0.278 (Depositor), 0.276 (DCC) 
• R-Value Work:  0.239 (Depositor), 0.237 (DCC) 
• R-Value Observed: 0.241 (Depositor) 

Space Group: I 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 69.29	α = 90
b = 72.64	β = 90
c = 107.93	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
BALBES	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-07-15 
Deposition Author(s): Kyle, H.F., Wickson, K.F., Stott, J., Burslem, G.M., Breeze, A.L., Tiede, C., Tomlinson, D.C., Warriner, S.L., Nelson, A., Wilson, A.J., Edwards, T.A.

Revision History  

• Version 1.0: 2015-07-15
  Type: Initial release
  
• Version 1.1: 2015-09-30
  Changes: Database references
• Version 1.2: 2024-01-10
  Changes: Data collection, Database references, Other, Refinement description