2IBO

X-ray Crystal Structure of Protein SP2199 from Streptococcus pneumoniae. Northeast Structural Genomics Consortium Target SpR31

• PDB DOI: https://doi.org/10.2210/pdb2IBO/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Streptococcus pneumoniae TIGR4
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-09-11 Released: 2006-10-03 
• Deposition Author(s): Seetharaman, J., Abashidze, M., Forouhar, F., Shastry, R., Conover, K., Cunningham, K., Ma, L.C., 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: 2.80 Å
• R-Value Free: 0.285 
• R-Value Work: 0.243 
• R-Value Observed: 0.243 

Literature

Crystal structure of the hypothetical protein SP2199 from Streptococcus pneumoniae, Northeast structural genomics target SpR31

Seetharaman, J., Abashidze, M., Forouhar, F., Shastry, R., Conover, K., Cunningham, K., Ma, L.C., 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: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 47.75 kDa 
• Atom Count: 2,905 
• Modelled Residue Count: 360 
• Deposited Residue Count: 416 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypothetical protein SP2199	A, B, C, D	104	Streptococcus pneumoniae TIGR4	Mutation(s): 3  Gene Names: SP_2199
UniProt
Find proteins for A0A0H2USK2 (Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4)) Explore A0A0H2USK2  Go to UniProtKB:  A0A0H2USK2

Small Molecules

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: 2.80 Å
• R-Value Free: 0.285 
• R-Value Work: 0.243 
• R-Value Observed: 0.243 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 91.901	α = 90
b = 91.901	β = 90
c = 156.364	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-10-03 
Deposition Author(s): Seetharaman, J., Abashidze, M., Forouhar, F., Shastry, R., Conover, K., Cunningham, K., Ma, L.C., 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: 2006-10-03
  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: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary