3B81 | pdb_00003b81

Crystal structure of predicted DNA-binding transcriptional regulator of TetR/AcrR family (NP_350189.1) from Clostridium acetobutylicum at 2.10 A resolution

• PDB DOI: https://doi.org/10.2210/pdb3B81/pdb

• Classification: TRANSCRIPTION REGULATOR
• Organism(s): Clostridium acetobutylicum ATCC 824
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-10-31 Released: 2007-11-20 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.234 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.203 (Depositor), 0.210 (DCC) 
• R-Value Observed: 
  0.204 (Depositor) 

Literature

Crystal structure of predicted DNA-binding transcriptional regulator of TetR/AcrR family (NP_350189.1) from Clostridium acetobutylicum at 2.10 A resolution

Joint Center for Structural Genomics (JCSG)

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 23.67 kDa 
• Atom Count: 1,595 
• Modeled Residue Count: 183 
• Deposited Residue Count: 203 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcriptional regulator, AcrR family	A	203	Clostridium acetobutylicum ATCC 824	Mutation(s): 0  Gene Names: NP_350189.1, CA_C3606
UniProt
Find proteins for Q97D74 (Clostridium acetobutylicum (strain ATCC 824 / DSM 792 / JCM 1419 / IAM 19013 / LMG 5710 / NBRC 13948 / NRRL B-527 / VKM B-1787 / 2291 / W)) Explore Q97D74  Go to UniProtKB:  Q97D74

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	C [auth A], D [auth A], E [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-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: 2.10 Å
• R-Value Free:  0.234 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.203 (Depositor), 0.210 (DCC) 
• R-Value Observed: 0.204 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M33B81

Space Group: P 4₂ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.967	α = 90
b = 89.967	β = 90
c = 70.274	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
SCALA	data scaling
PDB_EXTRACT	data extraction
ADSC	data collection
MOSFLM	data reduction
SHELXD	phasing
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-11-20 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2007-11-20
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations, Refinement description
• Version 1.4: 2023-01-25
  Changes: Database references, Derived calculations
• Version 1.5: 2024-11-20
  Changes: Data collection, Structure summary