2O18

Crystal structure of a Thiamine biosynthesis lipoprotein apbE, NorthEast Strcutural Genomics target ER559

• PDB DOI: https://doi.org/10.2210/pdb2O18/pdb

• Classification: LIPID BINDING PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-11-28 Released: 2006-12-05 
• Deposition Author(s): Seetharaman, J., Su, M., Wang, D., Fang, Y., Cunningham, K., Ma, L., Xiao, R., Liu, J., Baran, M.C., Acton, T.B., Rost, B., Montelione, G.T., Hunt, J.F., Tong, L., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.284 
• R-Value Work: 0.233 
• R-Value Observed: 0.233 

Literature

Crystal structure of a Thiamine biosynthesis lipoprotein apbE

Seetharaman, J., Su, M., Wang, D., Fang, Y., Cunningham, K., Ma, L., Xiao, R., Liu, J., Baran, M.C., Acton, T.B., Rost, B., Montelione, G.T., Hunt, J.F., Tong, L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 152.83 kDa 
• Atom Count: 9,555 
• Modelled Residue Count: 1,226 
• Deposited Residue Count: 1,360 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thiamine biosynthesis lipoprotein apbE	A, B, C, D	340	Escherichia coli	Mutation(s): 10  Gene Names: apbE EC: 2.7.1.180
UniProt
Find proteins for P0AB85 (Escherichia coli (strain K12)) Explore P0AB85  Go to UniProtKB:  P0AB85

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	E [auth A], F [auth B], G [auth C], H [auth D]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C, D	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: 0.284 
• R-Value Work: 0.233 
• R-Value Observed: 0.233 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.32	α = 75.76
b = 70.653	β = 71.67
c = 86.637	γ = 69.46

Software Package:

Software Name	Purpose
CNS	refinement
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-12-05 
Deposition Author(s): Seetharaman, J., Su, M., Wang, D., Fang, Y., Cunningham, K., Ma, L., Xiao, R., Liu, J., Baran, M.C., Acton, T.B., Rost, B., Montelione, G.T., Hunt, J.F., Tong, L., Northeast Structural Genomics Consortium (NESG)

Revision History  

• Version 1.0: 2006-12-05
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-12-27
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-11-20
  Changes: Structure summary