6QU8

Adenovirus Serotype 26 (Ad26) in complex with sialic acid, pH8.0

• PDB DOI: https://doi.org/10.2210/pdb6QU8/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Human adenovirus 26
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-02-26 Released: 2019-09-18 
• Deposition Author(s): Baker, A.T., Rizkallah, P.J., Parker, A.L., Mundy, R.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.19 Å
• R-Value Free: 0.172 
• R-Value Work: 0.142 
• R-Value Observed: 0.143 

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: homology

Macromolecule Content

• Total Structure Weight: 24.83 kDa 
• Atom Count: 1,846 
• Modelled Residue Count: 185 
• Deposited Residue Count: 212 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fiber	A	212	Human adenovirus 26	Mutation(s): 0
UniProt
Find proteins for A4ZKM1 (Human adenovirus 26) Explore A4ZKM1  Go to UniProtKB:  A4ZKM1

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SLB (Subject of Investigation/LOI)	C [auth A]	N-acetyl-beta-neuraminic acid C11 H19 N O9 SQVRNKJHWKZAKO-PFQGKNLYSA-N
SIA (Subject of Investigation/LOI)	B [auth A]	N-acetyl-alpha-neuraminic acid C11 H19 N O9 SQVRNKJHWKZAKO-YRMXFSIDSA-N
EDO	D [auth A], E [auth A], F [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.19 Å
• R-Value Free: 0.172 
• R-Value Work: 0.142 
• R-Value Observed: 0.143 
• Space Group: P 2₁ 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 85.92	α = 90
b = 85.92	β = 90
c = 85.92	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-09-18 
Deposition Author(s): Baker, A.T., Rizkallah, P.J., Parker, A.L., Mundy, R.M.

Revision History  

• Version 1.0: 2019-09-18
  Type: Initial release
  
• Version 1.1: 2019-09-25
  Changes: Data collection, Database references
• Version 1.2: 2020-07-01
  Changes: Data collection
• Version 2.0: 2020-07-08
  Changes: Advisory, Atomic model, Data collection, Derived calculations
• Version 2.1: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 2.2: 2024-01-24
  Changes: Data collection, Database references, Refinement description, Structure summary