6BLK

Mycobacterial sensor histidine kinase MprB

• PDB DOI: https://doi.org/10.2210/pdb6BLK/pdb

• Classification: TRANSFERASE
• Organism(s): Mycolicibacterium hassiacum DSM 44199
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2017-11-10 Released: 2017-11-22 
• Deposition Author(s): Li, J., Korotkova, N., Korotkov, K.V.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.221 
• R-Value Work: 0.184 
• R-Value Observed: 0.186 

Literature

Mycobacterial sensor histidine kinase MprB

Li, J., Korotkova, N., Korotkov, K.V.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

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

Biological Assembly 3  

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

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

Biological Assembly 4  

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

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 70.66 kDa 
• Atom Count: 5,428 
• Modelled Residue Count: 613 
• Deposited Residue Count: 632 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Signal transduction histidine-protein kinase/phosphatase mprB	A [auth C], B [auth D], C [auth A], D [auth B]	158	Mycolicibacterium hassiacum DSM 44199	Mutation(s): 0  Gene Names: mprB, C731_3480 EC: 3.1.3
UniProt
Find proteins for K5BDW2 (Mycolicibacterium hassiacum (strain DSM 44199 / CIP 105218 / JCM 12690 / 3849)) Explore K5BDW2  Go to UniProtKB:  K5BDW2

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP (Subject of Investigation/LOI)	E [auth C], G [auth D], I [auth A], K [auth B]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
MG (Subject of Investigation/LOI)	F [auth C], H [auth D], J [auth A], L [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.221 
• R-Value Work: 0.184 
• R-Value Observed: 0.186 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.41	α = 102.78
b = 61.63	β = 104.47
c = 67.22	γ = 109.08

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
BALBES	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2017-11-22 
Deposition Author(s): Li, J., Korotkova, N., Korotkov, K.V.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01AI119022
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P30GM110787

Revision History  

• Version 1.0: 2017-11-22
  Type: Initial release
  
• Version 1.1: 2019-12-11
  Changes: Author supporting evidence
• Version 1.2: 2023-10-04
  Changes: Data collection, Database references, Derived calculations, Refinement description