8XJC | pdb_00008xjc

a novel haemophore of of Riemerella anatipestifer

• PDB DOI: https://doi.org/10.2210/pdb8XJC/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Riemerella anatipestifer
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-12-21 Released: 2025-06-25 
• Deposition Author(s): Zhang, D.D., Chen, T.T.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 
  0.254 (Depositor), 0.254 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.225 (DCC) 
• R-Value Observed: 
  0.228 (Depositor) 

Starting Model: in silico

Literature

Structural basis and mechanism of a novel haemophore secreted by outer membrane vesicles in the haemin acquisition of Riemerella anatipestifer

Zhang, D.D., Chen, T.T.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 71.05 kDa 
• Atom Count: 4,773 
• Modeled Residue Count: 555 
• Deposited Residue Count: 596 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
haemophore	A, B	298	Riemerella anatipestifer	Mutation(s): 0
UniProt
Find proteins for E4T9P5 (Riemerella anatipestifer (strain ATCC 11845 / DSM 15868 / JCM 9532 / NCTC 11014)) Explore E4T9P5  Go to UniProtKB:  E4T9P5

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free:  0.254 (Depositor), 0.254 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.225 (DCC) 
• R-Value Observed: 0.228 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 110.48	α = 90
b = 120.06	β = 90
c = 53.85	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: 2025-06-25 
Deposition Author(s): Zhang, D.D., Chen, T.T.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2025-06-25
  Type: Initial release