3O3Y

A chimeric alpha+alpha/beta peptide based on the CHR domain sequence of gp41

• PDB DOI: https://doi.org/10.2210/pdb3O3Y/pdb

• Classification: VIRAL PROTEIN
• Organism(s): synthetic construct
• Mutation(s): No 


• Deposited: 2010-07-26 Released: 2011-08-24 
• Deposition Author(s): Horne, W.S., Johnson, L.M., Gellman, S.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.35 Å
• R-Value Free: 0.171 
• R-Value Work: 0.143 
• R-Value Observed: 0.144 

Starting Model: experimental

Literature

Chimeric and Non-Chimeric Foldamer Mimics of the CHR Segment of HIV Protein gp41: Evidence for the Importance of a Large Binding Interface in Six-Helix Bundle Formation

Horne, W.S., Johnson, L.M., Gellman, S.H.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 4.51 kDa 
• Atom Count: 347 
• Modelled Residue Count: 37 
• Deposited Residue Count: 40 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
chimeric alpha+alpha/beta peptide based on the CHR domain sequence of gp41	A	40	synthetic construct	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
B3E	A	L-PEPTIDE LINKING	C6 H11 N O4		GLU

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.35 Å
• R-Value Free: 0.171 
• R-Value Work: 0.143 
• R-Value Observed: 0.144 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.036	α = 90
b = 33.036	β = 90
c = 48.9	γ = 120

Software Package:

Software Name	Purpose
MD2	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-08-24 
Deposition Author(s): Horne, W.S., Johnson, L.M., Gellman, S.H.

Revision History  

• Version 1.0: 2011-08-24
  Type: Initial release
  
• Version 1.1: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 2.0: 2023-11-15
  Changes: Atomic model, Data collection