1AUU

SOLUTION STRUCTURE OF THE RNA-BINDING DOMAIN OF THE ANTITERMINATOR PROTEIN SACY, NMR, 10 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: RESTRAINT ENERGY VIOLATION WITHIN 30% OF THE CONFORMER OF LOWER ENERGY VIOLATION. 28 CONFORMERS SATISFIED THE CRITERIA, ONLY 10 ARE SHOWN. 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

From genetic to structural characterization of a new class of RNA-binding domain within the SacY/BglG family of antiterminator proteins.

Manival, X.Yang, Y.Strub, M.P.Kochoyan, M.Steinmetz, M.Aymerich, S.

(1997) EMBO J. 16: 5019-5029

  • DOI: 10.1093/emboj/16.16.5019

  • PubMed Abstract: 
  • SacY is the prototype of a family of regulatory proteins able to prevent transcription termination. It interacts with a 29 nucleotide RNA sequence able to fold into a stem-loop structure and partially overlapping with a terminator sequence located in ...

    SacY is the prototype of a family of regulatory proteins able to prevent transcription termination. It interacts with a 29 nucleotide RNA sequence able to fold into a stem-loop structure and partially overlapping with a terminator sequence located in the 5' leader mRNA region of the gene it controls. We show here that the N-terminal fragment of SacY, SacY(1-55), and the corresponding fragments of other members of the family have antiterminator activities with efficiency and specificity identical to those of the full-length proteins. In vitro, this activity correlates with the specific affinity of SacY(1-55) for its RNA target. UV melting experiments demonstrate that SacY(1-55) binding stabilizes the RNA target structure. The NMR solution structure of SacY(1-55) is very similar to that obtained in the crystal (van Tilbeurgh et al., 1997): the peptide is folded as a symmetrical dimer without any structural homology with other RNA-binding domains yet characterized. According to a preliminary NMR analysis of the SacY(1-55)-RNA complex, the protein dimer is not disrupted upon RNA binding and several residues implicated in RNA recognition are located at the edge of the dimer interface. This suggests a new mode of protein-RNA interaction.


    Organizational Affiliation

    CBS, Faculté de Pharmacie, CNRS-UMR9955, INSERM-U414, Université Montpellier, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SACY
A, B
55Bacillus subtilis (strain 168)Gene Names: sacY (sacS)
Find proteins for P15401 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P15401
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: RESTRAINT ENERGY VIOLATION WITHIN 30% OF THE CONFORMER OF LOWER ENERGY VIOLATION. 28 CONFORMERS SATISFIED THE CRITERIA, ONLY 10 ARE SHOWN. 
  • Olderado: 1AUU Olderado
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1997-09-02 
  • Released Date: 1997-11-12 
  • Deposition Author(s): Kochoyan, M.

Revision History 

  • Version 1.0: 1997-11-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance