Crystal Structure of SP1951 protein from Streptococcus pneumoniae in complex with FMN, Northeast Structural Genomics Target SpR27

Experimental Data Snapshot

  • Resolution: 2.00 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.208 

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This is version 1.4 of the entry. See complete history


Functional insights from structural genomics.

Forouhar, F.Kuzin, A.Seetharaman, J.Lee, I.Zhou, W.Abashidze, M.Chen, Y.Yong, W.Janjua, H.Fang, Y.Wang, D.Cunningham, K.Xiao, R.Acton, T.B.Pichersky, E.Klessig, D.F.Porter, C.W.Montelione, G.T.Tong, L.

(2007) J Struct Funct Genomics 8: 37-44

  • DOI: https://doi.org/10.1007/s10969-007-9018-3
  • Primary Citation of Related Structures:  
    1RTY, 1SQS, 1TM0, 1ZBP, 2HD3, 2NV4, 2OYS

  • PubMed Abstract: 

    Structural genomics efforts have produced structural information, either directly or by modeling, for thousands of proteins over the past few years. While many of these proteins have known functions, a large percentage of them have not been characterized at the functional level. The structural information has provided valuable functional insights on some of these proteins, through careful structural analyses, serendipity, and structure-guided functional screening. Some of the success stories based on structures solved at the Northeast Structural Genomics Consortium (NESG) are reported here. These include a novel methyl salicylate esterase with important role in plant innate immunity, a novel RNA methyltransferase (H. influenzae yggJ (HI0303)), a novel spermidine/spermine N-acetyltransferase (B. subtilis PaiA), a novel methyltransferase or AdoMet binding protein (A. fulgidus AF_0241), an ATP:cob(I)alamin adenosyltransferase (B. subtilis YvqK), a novel carboxysome pore (E. coli EutN), a proline racemase homolog with a disrupted active site (B. melitensis BME11586), an FMN-dependent enzyme (S. pneumoniae SP_1951), and a 12-stranded beta-barrel with a novel fold (V. parahaemolyticus VPA1032).

  • Organizational Affiliation

    Department of Biological Sciences, Northeast Structural Genomics Consortium, Columbia University, New York, NY 10027, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Hypothetical protein SP1951
A, B
242Streptococcus pneumoniae TIGR4Mutation(s): 4 
Gene Names: SP_1951
Find proteins for A0A0H2URW2 (Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4))
Explore A0A0H2URW2 
Go to UniProtKB:  A0A0H2URW2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0H2URW2
Sequence Annotations
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
Query on MSE
A, B
Experimental Data & Validation

Experimental Data

  • Resolution: 2.00 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.208 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.707α = 90
b = 102.792β = 90
c = 62.158γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2007-03-06
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2023-08-30
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.4: 2023-11-15
    Changes: Data collection