4NEG

The crystal structure of tryptophan synthase subunit beta from Bacillus anthracis str. 'Ames Ancestor'

• PDB DOI: https://doi.org/10.2210/pdb4NEG/pdb

• Classification: LYASE
• Organism(s): Bacillus anthracis str. 'Ames Ancestor
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-10-29 Released: 2013-11-13 
• Deposition Author(s): Tan, K., Zhang, R., Zhou, M., Kwon, K., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.217 
• R-Value Work: 0.175 
• R-Value Observed: 0.177 

Literature

The crystal structure of tryptophan synthase subunit beta from Bacillus anthracis str. 'Ames Ancestor'

Tan, K., Zhang, R., Zhou, M., Kwon, K., Anderson, W.F., 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: 89.62 kDa 
• Atom Count: 4,887 
• Modelled Residue Count: 636 
• Deposited Residue Count: 800 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan synthase beta chain	A, B	400	Bacillus anthracis str. 'Ames Ancestor	Mutation(s): 0  Gene Names: Bacillus anthracis, BAS1161, BA_1253, GBAA_1253, trpB EC: 4.2.1.20
UniProt
Find proteins for Q81TL8 (Bacillus anthracis) Explore Q81TL8  Go to UniProtKB:  Q81TL8

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A], H [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	G [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
FMT	E [auth A], F [auth A]	FORMIC ACID C H2 O2 BDAGIHXWWSANSR-UHFFFAOYSA-N

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: 2.20 Å
• R-Value Free: 0.217 
• R-Value Work: 0.175 
• R-Value Observed: 0.177 
• Space Group: C 1 2 1
• Diffraction Data: https://doi.org/10.18430/m34neg

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 200.762	α = 90
b = 49.037	β = 99.35
c = 76.494	γ = 90

Software Package:

Software Name	Purpose
SBC-Collect	data collection
SHELXD	phasing
MLPHARE	phasing
DM	model building
ARP	model building
WARP	model building
HKL-3000	phasing
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-11-13 
Deposition Author(s): Tan, K., Zhang, R., Zhou, M., Kwon, K., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2013-11-13
  Type: Initial release
  
• Version 1.1: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary