8A3U

Crystal structure of a chimeric LOV-Histidine kinase SB2F1 (symmetrical variant, trigonal form with short c-axis)

• PDB DOI: https://doi.org/10.2210/pdb8A3U/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Pseudomonas putida KT2440, Bradyrhizobium diazoefficiens USDA 110
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-06-09 Released: 2023-12-20 
• Deposition Author(s): Arinkin, V., Batra-Safferling, R., Granzin, J.
• Funding Organization(s): German Federal Ministry for Education and Research

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.33 Å
• R-Value Free: 0.280 
• R-Value Work: 0.232 
• R-Value Observed: 0.234 

Literature

Crystal structure of a chimeric LOV-Histidine kinase SB2F1 (symmetrical variant, trigonal form with short c-axis)

Arinkin, V., Batra-Safferling, R., Granzin, J., Krauss, U.

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: 44.33 kDa 
• Atom Count: 2,891 
• Modelled Residue Count: 364 
• Deposited Residue Count: 388 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative Sensory box protein,Sensor protein FixL	A	388	Pseudomonas putida KT2440, Bradyrhizobium diazoefficiens USDA 110 This entity is chimeric	Mutation(s): 0  Gene Names: PP_2739, fixL, bll2760 EC: 2.7.13.3
UniProt
Find proteins for P23222 (Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110)) Explore P23222  Go to UniProtKB:  P23222
Find proteins for Q88JB0 (Pseudomonas putida (strain ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950 / KT2440)) Explore Q88JB0  Go to UniProtKB:  Q88JB0
UniProt Groups	P23222Q88JB0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP (Subject of Investigation/LOI)	B [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
FMN (Subject of Investigation/LOI)	C [auth A]	FLAVIN MONONUCLEOTIDE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.33 Å
• R-Value Free: 0.280 
• R-Value Work: 0.232 
• R-Value Observed: 0.234 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 138.716	α = 90
b = 138.716	β = 90
c = 49.346	γ = 120

Software Package:

Software Name	Purpose
MxCuBE	data collection
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
SHELXD	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-12-20 
Deposition Author(s): Arinkin, V., Batra-Safferling, R., Granzin, J.

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Funding Organization	Location	Grant Number
German Federal Ministry for Education and Research	Germany	OptoSys, FKZ 031A16

Revision History  

• Version 1.0: 2023-12-20
  Type: Initial release