3JY6

Crystal structure of LacI Transcriptional regulator from Lactobacillus brevis

• PDB DOI: https://doi.org/10.2210/pdb3JY6/pdb

• Classification: Transcription regulator
• Organism(s): Levilactobacillus brevis ATCC 367
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2009-09-21 Released: 2009-10-13 
• Deposition Author(s): Syed Ibrahim, B., Kumaran, D., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.97 Å
• R-Value Free: 0.261 
• R-Value Work: 0.247 
• R-Value Observed: 0.247 

Literature

Crystal structure of LacI Transcriptional regulator from Lactobacillus brevis

Syed Ibrahim, B., Kumaran, D., Burley, S.K., Swaminathan, S.

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 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 124.43 kDa 
• Atom Count: 8,291 
• Modelled Residue Count: 1,037 
• Deposited Residue Count: 1,104 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcriptional regulator, LacI family	A, B, C, D	276	Levilactobacillus brevis ATCC 367	Mutation(s): 0  Gene Names: LVIS_0444
UniProt
Find proteins for Q03T70 (Levilactobacillus brevis (strain ATCC 367 / BCRC 12310 / CIP 105137 / JCM 1170 / LMG 11437 / NCIMB 947 / NCTC 947)) Explore Q03T70  Go to UniProtKB:  Q03T70

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	F [auth D], G [auth D]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL	E [auth D]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.97 Å
• R-Value Free: 0.261 
• R-Value Work: 0.247 
• R-Value Observed: 0.247 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.57	α = 90
b = 109.328	β = 95.17
c = 113.342	γ = 90

Software Package:

Software Name	Purpose
CBASS	data collection
SHELX	model building
SHARP	phasing
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SHELX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-10-13 
Deposition Author(s): Syed Ibrahim, B., Kumaran, D., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2009-10-13
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2021-02-10
  Changes: Database references, Derived calculations, Structure summary
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references