2G8X

Escherichia coli Y209W apoprotein

• PDB DOI: https://doi.org/10.2210/pdb2G8X/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-03-03 Released: 2006-03-14 
• Deposition Author(s): Lee, T.T., Finer-Moore, J.S., Stroud, R.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.83 Å
• R-Value Free: 0.202 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 

Starting Model: experimental

Literature

The role of protein dynamics in thymidylate synthase catalysis: Variants of conserved dUMP-binding Tyr-261

Newby, Z., Lee, T.T., Morse, R.J., Liu, L., Liu, Y., Venkatraman, P., Santi, D.V., Finer-Moore, J.S., Stroud, R.M.

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: 61.84 kDa 
• Atom Count: 4,678 
• Modelled Residue Count: 524 
• Deposited Residue Count: 528 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
thymidylate synthase	A, B	264	Escherichia coli	Mutation(s): 2  Gene Names: ThyA EC: 2.1.1.45
UniProt
Find proteins for P0A884 (Escherichia coli (strain K12)) Explore P0A884  Go to UniProtKB:  P0A884

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DTT	E [auth A], I [auth B]	2,3-DIHYDROXY-1,4-DITHIOBUTANE C4 H10 O2 S2 VHJLVAABSRFDPM-IMJSIDKUSA-N
PO4	D [auth A], H [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
CO3	C [auth A], F [auth B], G [auth B]	CARBONATE ION C O3 BVKZGUZCCUSVTD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CXM	A, B	L-PEPTIDE LINKING	C6 H11 N O4 S		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.83 Å
• R-Value Free: 0.202 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.61	α = 90
b = 79.69	β = 103.86
c = 92.24	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-03-14 
Deposition Author(s): Lee, T.T., Finer-Moore, J.S., Stroud, R.M.

Revision History  

• Version 1.0: 2006-03-14
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2021-10-20
  Changes: Database references, Derived calculations
• Version 1.4: 2023-08-30
  Changes: Data collection, Refinement description
• Version 1.5: 2024-10-30
  Changes: Structure summary