9WFI | pdb_00009wfi

A chimera FadR transcription factor containing wHTH of Rv0494 and the part other than wHTH of Escherichia coli FadR

• PDB DOI: https://doi.org/10.2210/pdb9WFI/pdb

• Classification: TRANSCRIPTION
• Organism(s): Mycobacterium tuberculosis H37Rv, Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-08-21 Released: 2025-09-24 
• Deposition Author(s): Lu, L.N.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 
  0.247 (Depositor), 0.246 (DCC) 
• R-Value Work: 
  0.212 (Depositor), 0.212 (DCC) 
• R-Value Observed: 
  0.213 (Depositor) 

Starting Model: experimental

Literature

A chimera FadR transcription factor containing wHTH of Rv0494 and the part other than wHTH of Escherichia coli FadR

Lu, L.N.

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: gel filtration

Macromolecule Content 

• Total Structure Weight: 55.94 kDa 
• Atom Count: 3,731 
• Modeled Residue Count: 443 
• Deposited Residue Count: 500 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Uncharacterized HTH-type transcriptional regulator Rv0494,Fatty acid metabolism regulator protein	A, B	250	Mycobacterium tuberculosis H37Rv, Escherichia coli K-12 This entity is chimeric	Mutation(s): 0  Gene Names: Rv0494, MTCY20G9.20, fadR, oleR, thdB, b1187, JW1176
UniProt
Find proteins for P0A8V6 (Escherichia coli (strain K12)) Explore P0A8V6  Go to UniProtKB:  P0A8V6
Find proteins for P9WMG7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore P9WMG7  Go to UniProtKB:  P9WMG7
UniProt Groups	P0A8V6P9WMG7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free:  0.247 (Depositor), 0.246 (DCC) 
• R-Value Work:  0.212 (Depositor), 0.212 (DCC) 
• R-Value Observed: 0.213 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M39WFI

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.678	α = 90
b = 66.136	β = 90
c = 122.112	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-09-24 
Deposition Author(s): Lu, L.N.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32460022

Revision History  

• Version 1.0: 2025-09-24
  Type: Initial release