4OK9

Crystal structure of the single-stranded RNA binding protein HutP from Geobacillus thermodenitrificans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 

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Literature

Crystal structure of the single-stranded RNA binding protein HutP from Geobacillus thermodenitrificans

Thiruselvam, V.Sivaraman, P.Kumarevel, T.Ponnuswamy, M.N.

(2014) Biochem Biophys Res Commun 446: 945-951

  • DOI: 10.1016/j.bbrc.2014.03.036
  • Primary Citation of Related Structures:  
    4OK9, 4OKQ

  • PubMed Abstract: 
  • RNA binding proteins control gene expression by the attenuation/antitermination mechanism. HutP is an RNA binding antitermination protein. It regulates the expression of hut operon when it binds with RNA by modulating the secondary structure of single-stranded hut mRNA ...

    RNA binding proteins control gene expression by the attenuation/antitermination mechanism. HutP is an RNA binding antitermination protein. It regulates the expression of hut operon when it binds with RNA by modulating the secondary structure of single-stranded hut mRNA. HutP necessitates the presence of l-histidine and divalent metal ion to bind with RNA. Herein, we report the crystal structures of ternary complex (HutP-l-histidine-Mg(2+)) and EDTA (0.5 M) treated ternary complex (HutP-l-histidine-Mg(2+)), solved at 1.9 Å and 2.5 Å resolutions, respectively, from Geobacillus thermodenitrificans. The addition of 0.5 M EDTA does not affect the overall metal-ion mediated ternary complex structure and however, the metal ions at the non-specific binding sites are chelated, as evidenced from the results of structural features.


    Organizational Affiliation

    Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India. Electronic address: mnpsy@hotmail.com.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Hut operon positive regulatory proteinA, B149Geobacillus thermodenitrificans NG80-2Mutation(s): 0 
Gene Names: GTNG_0361hutP
UniProt
Find proteins for A4IK89 (Geobacillus thermodenitrificans (strain NG80-2))
Explore A4IK89 
Go to UniProtKB:  A4IK89
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA4IK89
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.811α = 90
b = 90.811β = 90
c = 76.672γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-03-19
    Type: Initial release
  • Version 1.1: 2014-12-17
    Changes: Database references