3MVP

The Crystal Structure of a TetR/AcrR transcriptional regulator from Streptococcus mutans to 1.85A

• PDB DOI: https://doi.org/10.2210/pdb3MVP/pdb

• Classification: transcription regulator
• Organism(s): Streptococcus mutans UA159
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-05-04 Released: 2010-05-12 
• Deposition Author(s): Stein, A.J., Xu, X., Cui, H., Chin, S., Savchenko, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.259 
• R-Value Work: 0.221 
• R-Value Observed: 0.223 

Literature

The Crystal Structure of a TetR/AcrR transcriptional regulator from Streptococcus mutans to 1.85A

Stein, A.J., Xu, X., Cui, H., Chin, S., Savchenko, A., Joachimiak, A.

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)

Macromolecule Content

• Total Structure Weight: 50.83 kDa 
• Atom Count: 3,381 
• Modelled Residue Count: 398 
• Deposited Residue Count: 434 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TetR/AcrR transcriptional regulator	A, B	217	Streptococcus mutans UA159	Mutation(s): 0  Gene Names: SMU_134
UniProt
Find proteins for Q8DWD0 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159)) Explore Q8DWD0  Go to UniProtKB:  Q8DWD0

Small Molecules

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: 1.85 Å
• R-Value Free: 0.259 
• R-Value Work: 0.221 
• R-Value Observed: 0.223 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.49	α = 90
b = 80.197	β = 90
c = 110.63	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
SHELX	phasing
MLPHARE	phasing
DM	phasing
ARP/wARP	model building
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-05-12 
Deposition Author(s): Stein, A.J., Xu, X., Cui, H., Chin, S., Savchenko, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2010-05-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary