8EBG

Crystal structure of the probable FhuD FeIII-dicitrate-binding domain protein FecB from Mycobacterium tuberculosis

• PDB DOI: https://doi.org/10.2210/pdb8EBG/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Mycobacterium tuberculosis H37Rv
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2022-08-31 Released: 2022-09-14 
• Deposition Author(s): Cuff, M., Kim, Y., Endres, M., Gu, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)
• 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: 1.43 Å
• R-Value Free: 0.170 
• R-Value Work: 0.141 
• R-Value Observed: 0.143 

Literature

Crystal structure of the probable FhuD FeIII-dicitrate-binding domain protein FecB from Mycobacterium tuberculosis

Cuff, M., Kim, Y., Endres, M., Gu, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 70.49 kDa 
• Atom Count: 5,714 
• Modelled Residue Count: 643 
• Deposited Residue Count: 672 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FEIII-dicitrate-binding periplasmic lipoprotein FecB	A, B	336	Mycobacterium tuberculosis H37Rv	Mutation(s): 0  Gene Names: fecB, Rv3044
UniProt
Find proteins for O53291 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore O53291  Go to UniProtKB:  O53291

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	D [auth A], F [auth B], G [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACY	E [auth B]	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N
FMT	C [auth A]	FORMIC ACID C H2 O2 BDAGIHXWWSANSR-UHFFFAOYSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.43 Å
• R-Value Free: 0.170 
• R-Value Work: 0.141 
• R-Value Observed: 0.143 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.631	α = 90
b = 76.517	β = 102.5
c = 79.076	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
MLPHARE	phasing
ARP/wARP	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-09-14 
Deposition Author(s): Cuff, M., Kim, Y., Endres, M., Gu, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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

Revision History  

• Version 1.0: 2022-09-14
  Type: Initial release