2AG3 | pdb_00002ag3

Heterocyclic Peptide Backbone Modification in Gcn4-pLI Based Coiled Coils: Substitution of the K(15)-L(16) amide with a triazole

• PDB DOI: https://doi.org/10.2210/pdb2AG3/pdb

• Classification: DE NOVO PROTEIN
• Mutation(s): No 


• Deposited: 2005-07-26 Released: 2006-08-08 
• Deposition Author(s): Horne, W.S., Ghadiri, M.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.306 (Depositor), 0.297 (DCC) 
• R-Value Work: 
  0.245 (Depositor), 0.251 (DCC) 
• R-Value Observed: 
  0.248 (Depositor) 

Literature

Copper-Catalyzed Azide-Alkyne Cycloaddition as a Non-native Ligation Strategy toward Backbone-Modified Peptides

Horne, W.S., Ghadiri, M.R.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content 

• Total Structure Weight: 4.07 kDa 
• Atom Count: 235 
• Modeled Residue Count: 25 
• Deposited Residue Count: 32 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GCN4-pLI	A	32	N/A	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.306 (Depositor), 0.297 (DCC) 
• R-Value Work:  0.245 (Depositor), 0.251 (DCC) 
• R-Value Observed: 0.248 (Depositor) 

Space Group: P 4 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 35.138	α = 90
b = 35.138	β = 90
c = 47.76	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
d*TREK	data scaling
PDB_EXTRACT	data extraction
CrystalClear	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-08-08 
Deposition Author(s): Horne, W.S., Ghadiri, M.R.

Revision History  

• Version 1.0: 2006-08-08
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 2.0: 2018-03-07
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Refinement description, Structure summary
• Version 2.1: 2024-11-13
  Changes: Data collection, Database references, Derived calculations, Structure summary