8UUR | pdb_00008uur

Structure of Serratia proteamaculans antifeeding prophage mini-fibre (AfpX13)

• PDB DOI: https://doi.org/10.2210/pdb8UUR/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Serratia proteamaculans
• Expression System: Escherichia coli K-12
• Mutation(s): No 


• Deposited: 2023-11-01 Released: 2025-08-27 
• Deposition Author(s): Young, P.G., Hurst, M.R.H.
• Funding Organization(s): Ministry of Business, Innovation and Employment (New Zealand)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 
  0.264 (Depositor), 0.262 (DCC) 
• R-Value Work: 
  0.217 (Depositor), 0.218 (DCC) 
• R-Value Observed: 
  0.220 (Depositor) 

Starting Model: experimental

Literature

Structure of Serratia entomophila antifeeding prophage Fibre foot domain (Afp13)

Young, P.G., Hurst, M.R.H.

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)

Macromolecule Content 

• Total Structure Weight: 86.77 kDa 
• Atom Count: 5,383 
• Modeled Residue Count: 720 
• Deposited Residue Count: 834 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AfpX13	A, B, C	278	Serratia proteamaculans	Mutation(s): 0
UniProt
Find proteins for A0A2R2Q2I2 (Serratia proteamaculans) Explore A0A2R2Q2I2  Go to UniProtKB:  A0A2R2Q2I2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CD (Subject of Investigation/LOI)	D [auth A], E [auth B], F [auth C]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free:  0.264 (Depositor), 0.262 (DCC) 
• R-Value Work:  0.217 (Depositor), 0.218 (DCC) 
• R-Value Observed: 0.220 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.556	α = 90
b = 68.409	β = 93.323
c = 132.757	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-27 
Deposition Author(s): Young, P.G., Hurst, M.R.H.

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Funding Organization	Location	Grant Number
Ministry of Business, Innovation and Employment (New Zealand)	New Zealand	C10X1805

Revision History  

• Version 1.0: 2025-08-27
  Type: Initial release