5FBM

Crystal Structure of Histone Like Protein (HLP) from Streptococcus mutans Refined to 1.9 A Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of histone-like protein from Streptococcus mutans refined to 1.9 angstrom resolution.

O'Neil, P.Lovell, S.Mehzabeen, N.Battaile, K.Biswas, I.

(2016) Acta Crystallogr F Struct Biol Commun 72: 257-262

  • DOI: https://doi.org/10.1107/S2053230X1600217X
  • Primary Citation of Related Structures:  
    5FBM

  • PubMed Abstract: 

    Nucleoid-associated proteins (NAPs) in prokaryotes play an important architectural role in DNA bending, supercoiling and DNA compaction. In addition to architectural roles, some NAPs also play regulatory roles in DNA replication and repair, and act as global transcriptional regulators in many bacteria. Bacteria encode multiple NAPs and some of them are even essential for survival. Streptococcus mutans, a dental pathogen, encodes one such essential NAP called histone-like protein (HLP). Here, the three-dimensional structure of S. mutans HLP has been determined to 1.9 Å resolution. The HLP structure is a dimer and shares a high degree of similarity with other bacterial NAPs, including HU. Since HLPs are essential for the survival of pathogenic streptococci, this structure determination is potentially beneficial for future drug development against these pathogens.


  • Organizational Affiliation

    Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-binding protein HU
A, B
99Streptococcus mutans UA159Mutation(s): 0 
Gene Names: huphlpASMU_589
UniProt
Find proteins for Q9XB21 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159))
Explore Q9XB21 
Go to UniProtKB:  Q9XB21
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9XB21
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.178 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 32.458α = 90
b = 76.333β = 107.21
c = 36.933γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)United StatesDE021664

Revision History  (Full details and data files)

  • Version 1.0: 2016-04-06
    Type: Initial release
  • Version 1.1: 2018-04-18
    Changes: Author supporting evidence, Data collection, Database references, Derived calculations, Structure summary
  • Version 1.2: 2019-12-11
    Changes: Author supporting evidence
  • Version 1.3: 2023-09-27
    Changes: Data collection, Database references, Refinement description