3ERM

The crystal structure of a conserved protein with unknown function from Pseudomonas syringae pv. tomato str. DC3000

• PDB DOI: https://doi.org/10.2210/pdb3ERM/pdb

• Classification: structural genomics, unknown function
• Organism(s): Pseudomonas syringae pv. tomato
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-10-02 Released: 2008-10-21 
• Deposition Author(s): Tan, K., Zhou, M., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free: 0.269 
• R-Value Work: 0.214 
• R-Value Observed: 0.217 

Literature

The crystal structure of a conserved protein with unknown function from Pseudomonas syringae pv. tomato str. DC3000

Tan, K., Zhou, M., Clancy, S., 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)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

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

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

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

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 50.64 kDa 
• Atom Count: 2,449 
• Modelled Residue Count: 318 
• Deposited Residue Count: 455 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
uncharacterized conserved protein	A, B, C, D, E	91	Pseudomonas syringae pv. tomato	Mutation(s): 0  Gene Names: Pseudomonas syringae pv. tomato, PSPTO1197, PSPTO_1197
UniProt
Find proteins for Q887T9 (Pseudomonas syringae pv. tomato (strain ATCC BAA-871 / DC3000)) Explore Q887T9  Go to UniProtKB:  Q887T9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	F [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C, D, E	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free: 0.269 
• R-Value Work: 0.214 
• R-Value Observed: 0.217 
• Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.971	α = 90
b = 74.971	β = 90
c = 213.784	γ = 120

Software Package:

Software Name	Purpose
SBC-Collect	data collection
SHELXD	phasing
MLPHARE	phasing
DM	model building
RESOLVE	model building
HKL-3000	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
DM	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-10-21 
Deposition Author(s): Tan, K., Zhou, M., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2008-10-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.2: 2023-12-27
  Changes: Data collection, Database references, Derived calculations