3LKL

Crystal structure of the C-terminal domain of Anti-Sigma factor antagonist STAS from Rhodobacter sphaeroides

• PDB DOI: https://doi.org/10.2210/pdb3LKL/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Cereibacter sphaeroides 2.4.1
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-01-27 Released: 2010-03-09 
• Deposition Author(s): Nocek, B., Marshall, N., Davidoff, J., Freeman, L., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free: 0.242 
• R-Value Work: 0.199 
• R-Value Observed: 0.202 

Literature

Crystal structure of the C-terminal domain of Anti-Sigma factor antagonist STAS from Rhodobacter sphaeroides

Nocek, B., Marshall, N., Davidoff, J., Freeman, L., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

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

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 22.3 kDa 
• Atom Count: 1,477 
• Modelled Residue Count: 181 
• Deposited Residue Count: 196 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Antisigma-factor antagonist STAS	A, B	98	Cereibacter sphaeroides 2.4.1	Mutation(s): 0  Gene Names: RSP_4257
UniProt
Find proteins for Q3HKG0 (Cereibacter sphaeroides (strain ATCC 17023 / DSM 158 / JCM 6121 / CCUG 31486 / LMG 2827 / NBRC 12203 / NCIMB 8253 / ATH 2.4.1.)) Explore Q3HKG0  Go to UniProtKB:  Q3HKG0

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: 2.15 Å
• R-Value Free: 0.242 
• R-Value Work: 0.199 
• R-Value Observed: 0.202 
• Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 98.428	α = 90
b = 98.428	β = 90
c = 46.825	γ = 120

Software Package:

Software Name	Purpose
SBC-Collect	data collection
SHELX	model building
HKL-3000	phasing
MLPHARE	phasing
CCP4	model building
DM	model building
ARP/wARP	model building
Coot	model building
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
SHELX	phasing
CCP4	phasing
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-03-09 
Deposition Author(s): Nocek, B., Marshall, N., Davidoff, J., Freeman, L., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2010-03-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description