3FN2

Crystal structure of a putative sensor histidine kinase domain from Clostridium symbiosum ATCC 14940

• PDB DOI: https://doi.org/10.2210/pdb3FN2/pdb

• Classification: TRANSFERASE
• Organism(s): [Clostridium] symbiosum ATCC 14940
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-12-23 Released: 2009-01-27 
• Deposition Author(s): Cuff, M.E., Tesar, C., Freeman, L., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.251 
• R-Value Work: 0.187 
• R-Value Observed: 0.190 

Literature

The structure of a putative sensor histidine kinase domain from Clostridium symbiosum ATCC 14940

Cuff, M.E., Tesar, C., Freeman, L., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 25.62 kDa 
• Atom Count: 1,826 
• Modelled Residue Count: 194 
• Deposited Residue Count: 212 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative sensor histidine kinase domain	A, B	106	[Clostridium] symbiosum ATCC 14940	Mutation(s): 0

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	D [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
EDO	E [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
K	C [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-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: 1.90 Å
• R-Value Free: 0.251 
• R-Value Work: 0.187 
• R-Value Observed: 0.190 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 107.252	α = 90
b = 107.252	β = 90
c = 49.71	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing
DM	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
SHELXD	phasing
SHELXE	model building
SOLVE	phasing
RESOLVE	phasing
ARP/wARP	model building
CCP4	phasing
O	model building
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-01-27 
Deposition Author(s): Cuff, M.E., Tesar, C., Freeman, L., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2009-01-27
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2024-10-09
  Changes: Data collection, Database references, Derived calculations, Structure summary