7JL6 | pdb_00007jl6

Heme binding to SrrB PAS domain plays a role in redox regulation of S. aureus SrrAB two-component system

• PDB DOI: https://doi.org/10.2210/pdb7JL6/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Staphylococcus aureus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2020-07-29 Released: 2021-08-04 
• Deposition Author(s): Tiwari, N., Sun, Y.J., Gakhar, L., Fuentes, E.J.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.234 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.192 (Depositor), 0.210 (DCC) 
• R-Value Observed: 
  0.194 (Depositor) 

Literature

Heme binding to SrrB PAS domain plays a role in redox regulation of S. aureus SrrAB two-component system

Tiwari, N., Sun, Y.J., Fuentes, E.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: light scattering

Macromolecule Content 

• Total Structure Weight: 23.66 kDa 
• Atom Count: 1,562 
• Modeled Residue Count: 194 
• Deposited Residue Count: 208 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sensor protein SrrB	A, B	104	Staphylococcus aureus	Mutation(s): 0  Gene Names: srrB EC: 2.7.13.3
UniProt
Find proteins for Q9L523 (Staphylococcus aureus) Explore Q9L523  Go to UniProtKB:  Q9L523

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.234 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.192 (Depositor), 0.210 (DCC) 
• R-Value Observed: 0.194 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 84.072	α = 90
b = 65.14	β = 91.11
c = 37.513	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-08-04 
Deposition Author(s): Tiwari, N., Sun, Y.J., Gakhar, L., Fuentes, E.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	AI135305

Revision History  

• Version 1.0: 2021-08-04
  Type: Initial release
  
• Version 1.1: 2024-03-06
  Changes: Data collection, Database references