8ELN

Crystal Structure of Nanobody VHH222 Bound to Its Antigen PA14 Cif

• PDB DOI: https://doi.org/10.2210/pdb8ELN/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Pseudomonas aeruginosa PA14, Vicugna pacos
• Expression System: Escherichia coli, Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2022-09-26 Released: 2023-10-18 
• Deposition Author(s): Simard, A.R., Madden, D.R.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Cystic Fibrosis Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.229 
• R-Value Work: 0.197 
• R-Value Observed: 0.198 

Literature

Crystal Structure of Nanobody VHH222 Bound to Its Antigen PA14 Cif

Simard, A.R., Madden, D.R.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Biological Assembly Evidence: gel filtration

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 286.18 kDa 
• Atom Count: 20,215 
• Modelled Residue Count: 2,485 
• Deposited Residue Count: 2,562 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CFTR inhibitory factor	A, B, E, F, I, J	301	Pseudomonas aeruginosa PA14	Mutation(s): 0  Gene Names: PA2394
UniProt
Find proteins for A0A0H2ZD27 (Pseudomonas aeruginosa (strain UCBPP-PA14)) Explore A0A0H2ZD27  Go to UniProtKB:  A0A0H2ZD27

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Nanobody VHH222	C, D, G, H, K, L	126	Vicugna pacos	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.229 
• R-Value Work: 0.197 
• R-Value Observed: 0.198 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.222	α = 90
b = 164.326	β = 97.54
c = 107.291	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-10-18 
Deposition Author(s): Simard, A.R., Madden, D.R.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01-AI091699
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)	United States	P30-DK117469
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P20-GM113132
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	T32AI007519
Cystic Fibrosis Foundation	United States	STANTO19R0

Revision History  

• Version 1.0: 2023-10-18
  Type: Initial release