3LUF

Structure of probable two-component system response regulator/GGDEF domain protein

• PDB DOI: https://doi.org/10.2210/pdb3LUF/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Aeromonas salmonicida subsp. salmonicida A449
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-02-17 Released: 2010-03-02 
• Deposition Author(s): Ramagopal, U.A., Toro, R., Burley, S.K., Almo, S.C., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.76 Å
• R-Value Free: 0.226 
• R-Value Work: 0.187 
• R-Value Observed: 0.189 

Literature

Structure of probable two-component system response regulator/GGDEF domain protein

Ramagopal, U.A., Toro, R., Burley, S.K., Almo, S.C.

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 and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 60.06 kDa 
• Atom Count: 4,268 
• Modelled Residue Count: 490 
• Deposited Residue Count: 518 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Two-component system response regulator/GGDEF domain protein	A, B	259	Aeromonas salmonicida subsp. salmonicida A449	Mutation(s): 0  Gene Names: ASA_2441 EC: 2.7.7.65
UniProt
Find proteins for A4SNL2 (Aeromonas salmonicida (strain A449)) Explore A4SNL2  Go to UniProtKB:  A4SNL2

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DMS	E [auth A], H [auth B], I [auth B]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
MG	C [auth A], D [auth A], F [auth B], G [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.76 Å
• R-Value Free: 0.226 
• R-Value Work: 0.187 
• R-Value Observed: 0.189 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.195	α = 75.39
b = 53.699	β = 80.99
c = 57.887	γ = 77.41

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SHELXE	model building
SHELXD	phasing
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-03-02 
Deposition Author(s): Ramagopal, U.A., Toro, R., Burley, S.K., Almo, S.C., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2010-03-02
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2021-02-10
  Changes: Database references, Derived calculations, Structure summary
• Version 1.4: 2024-10-09
  Changes: Data collection, Database references, Structure summary