3BBL

Crystal structure of a regulatory protein of LacI family from Chloroflexus aggregans

• PDB DOI: https://doi.org/10.2210/pdb3BBL/pdb

• Classification: REGULATORY PROTEIN
• Organism(s): Chloroflexus aggregans DSM 9485
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-11-09 Released: 2007-11-27 
• Deposition Author(s): 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: 2.35 Å
• R-Value Free: 0.258 
• R-Value Work: 0.240 
• R-Value Observed: 0.241 

Literature

Crystal structure of a regulatory protein of LacI family from the Chloroflexus aggregans.

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: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 32.95 kDa 
• Atom Count: 2,331 
• Modelled Residue Count: 281 
• Deposited Residue Count: 287 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Regulatory protein of LacI family	A	287	Chloroflexus aggregans DSM 9485	Mutation(s): 0  Gene Names: CaggDRAFT_0381 EC: 5.1.1.1
UniProt
Find proteins for B8GD81 (Chloroflexus aggregans (strain MD-66 / DSM 9485)) Explore B8GD81  Go to UniProtKB:  B8GD81

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	B [auth A], C [auth A], D [auth A], E [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.258 
• R-Value Work: 0.240 
• R-Value Observed: 0.241 
• Space Group: P 6₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 122.55	α = 90
b = 122.55	β = 90
c = 123.301	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SHELXD	phasing
SHARP	phasing
ARP/wARP	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-11-27 
Deposition Author(s): Kumaran, D., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2007-11-27
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2021-02-03
  Changes: Database references, Derived calculations, Structure summary
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Structure summary