8QKF

SmtB protein of Mycobacterium smegmatis

• PDB DOI: https://doi.org/10.2210/pdb8QKF/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Mycolicibacterium smegmatis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-09-15 Released: 2024-09-25 
• Deposition Author(s): Potocki, S., Pyra, A., Nowak, E., Rola, A., Plaskowka, K., Trojanowski, D., Holowka, J., Pasikowski, P., Gumienna-Kontecka, E., Zakrzewska-Czerwinska, J.
• Funding Organization(s): Polish National Science Centre

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.88 Å
• R-Value Free: 0.244 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 

Starting Model: experimental

Literature

SmtB protein of Mycobacterium smegmatis

Potocki, S., Pyra, A., Nowak, E., Plaskowka, K., Rola, A., Trojanowski, D., Holowka, J., Pasikowski, P., Gumienna-Kontecka, E., Zakrzewska-Czerwinska, J.

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)

Biological Assembly Evidence: mass spectrometry

Macromolecule Content

• Total Structure Weight: 26.3 kDa 
• Atom Count: 1,587 
• Modelled Residue Count: 193 
• Deposited Residue Count: 240 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ArsR family transcriptional regulator	A, B	120	Mycolicibacterium smegmatis	Mutation(s): 0  Gene Names: smtB
UniProt
Find proteins for A0A653FM47 (Mycolicibacterium smegmatis) Explore A0A653FM47  Go to UniProtKB:  A0A653FM47

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.88 Å
• R-Value Free: 0.244 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.292	α = 90
b = 72.479	β = 90
c = 82.226	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-25 
Deposition Author(s): Potocki, S., Pyra, A., Nowak, E., Rola, A., Plaskowka, K., Trojanowski, D., Holowka, J., Pasikowski, P., Gumienna-Kontecka, E., Zakrzewska-Czerwinska, J.

---

Funding Organization	Location	Grant Number
Polish National Science Centre	Poland	UMO-2017/26/D/ST5/00372

Revision History  

• Version 1.0: 2024-09-25
  Type: Initial release