4AGA

Hofmeister effects of ionic liquids in protein crystallization: direct and water-mediated interactions

• PDB DOI: https://doi.org/10.2210/pdb4AGA/pdb

• Classification: HYDROLASE
• Organism(s): Gallus gallus
• Mutation(s): No 


• Deposited: 2012-01-25 Released: 2012-07-18 
• Deposition Author(s): Mukhopadhyay, A., Carvalho, A.L., Romao, M.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.211 
• R-Value Work: 0.168 
• R-Value Observed: 0.170 

Starting Model: experimental

Literature

Hofmeister Effects of Ionic Liquids in Protein Crystallization: Direct and Water-Mediated Interactions

Kowacz, M., Mukhopadhyay, A., Carvalho, A.L., Esperanca, J.M.S.S., Romao, M.J., Rebelo, L.P.N.

(2012) CrystEngComm 14: 4912

• DOI: https://doi.org/10.1039/C2CE25129A

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 14.55 kDa 
• Atom Count: 1,236 
• Modelled Residue Count: 129 
• Deposited Residue Count: 129 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
LYSOZYME C	A	129	Gallus gallus	Mutation(s): 0  EC: 3.2.1.17
UniProt
Find proteins for P00698 (Gallus gallus) Explore P00698  Go to UniProtKB:  P00698

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CHT	D [auth A]	CHOLINE ION C5 H14 N O OEYIOHPDSNJKLS-UHFFFAOYSA-N
ACT	E [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA	C [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.211 
• R-Value Work: 0.168 
• R-Value Observed: 0.170 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.35	α = 90
b = 78.35	β = 90
c = 36.9	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-07-18 
Deposition Author(s): Mukhopadhyay, A., Carvalho, A.L., Romao, M.J.

Revision History  

• Version 1.0: 2012-07-18
  Type: Initial release
  
• Version 1.1: 2019-05-08
  Changes: Data collection, Experimental preparation, Other
• Version 1.2: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description