6P2A | pdb_00006p2a

Chimera of bacteriophage OBP gp146 central spike protein and a T4 gp5 beta-helix fragment

• PDB DOI: https://doi.org/10.2210/pdb6P2A/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Tequatrovirus T4, Pseudomonas phage OBP
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-05-21 Released: 2020-05-27 
• Deposition Author(s): Buth, S.A., Shneider, M.M., Leiman, P.G.
• Funding Organization(s): Swiss National Science Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.158 (Depositor), 0.159 (DCC) 
• R-Value Work: 
  0.127 (Depositor), 0.129 (DCC) 
• R-Value Observed: 
  0.128 (Depositor) 

Starting Model: experimental

Literature

Chimera of bacteriophage OBP gp146 central spike protein and a T4 gp5 beta-helix fragment

Buth, S.A., Shneider, M.M., Leiman, P.G.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 92.94 kDa 
• Atom Count: 8,284 
• Modeled Residue Count: 871 
• Deposited Residue Count: 888 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHIMERA OF BACTERIOPHAGE OBP GP146 AND A T4 GP5	A, B, C, D, E, F	148	Tequatrovirus T4, Pseudomonas phage OBP This entity is chimeric	Mutation(s): 0  EC: 3.2.1.17
UniProt
Find proteins for P16009 (Enterobacteria phage T4) Explore P16009  Go to UniProtKB:  P16009

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
STE	H [auth A], N [auth D]	STEARIC ACID C18 H36 O2 QIQXTHQIDYTFRH-UHFFFAOYSA-N
ELA	I [auth A], O [auth F]	Elaidic acid C18 H34 O2 ZQPPMHVWECSIRJ-MDZDMXLPSA-N
PLM	J [auth B], P [auth F]	PALMITIC ACID C16 H32 O2 IPCSVZSSVZVIGE-UHFFFAOYSA-N
FE2	G [auth A], L [auth D]	FE (II) ION Fe CWYNVVGOOAEACU-UHFFFAOYSA-N
MG	K [auth C], M [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.158 (Depositor), 0.159 (DCC) 
• R-Value Work:  0.127 (Depositor), 0.129 (DCC) 
• R-Value Observed: 0.128 (Depositor) 

Space Group: P 4₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 140.013	α = 90
b = 140.013	β = 90
c = 63.161	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-05-27 
Deposition Author(s): Buth, S.A., Shneider, M.M., Leiman, P.G.

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Funding Organization	Location	Grant Number
Swiss National Science Foundation	Switzerland	310030_144243

Revision History  

• Version 1.0: 2020-05-27
  Type: Initial release
  
• Version 1.1: 2023-10-11
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.2: 2025-07-23
  Changes: Derived calculations, Structure summary