1SXL

RESONANCE ASSIGNMENTS AND SOLUTION STRUCTURE OF THE SECOND RNA-BINDING DOMAIN OF SEX-LETHAL DETERMINED BY MULTIDIMENSIONAL HETERONUCLEAR MAGNETIC RESONANCE SPECTROSCOPY


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 17 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Resonance assignments and solution structure of the second RNA-binding domain of sex-lethal determined by multidimensional heteronuclear magnetic resonance.

Lee, A.L.Kanaar, R.Rio, D.C.Wemmer, D.E.

(1994) Biochemistry 33: 13775-13786


  • PubMed Abstract: 
  • The RNA-binding protein Sex-lethal (Sxl) is a critical regulator of sexual differentiation and dosage compensation in Drosophila. This regulatory activity is a consequence of the ability of Sxl to bind uridine-rich RNA tracts involved in pre-mRNA spl ...

    The RNA-binding protein Sex-lethal (Sxl) is a critical regulator of sexual differentiation and dosage compensation in Drosophila. This regulatory activity is a consequence of the ability of Sxl to bind uridine-rich RNA tracts involved in pre-mRNA splicing. Sxl contains two RNP consensus-type RNA-binding domains (RBDs). A structural study of a portion of Sxl (amino acids 199-294) containing the second RNA-binding domain (RBD-2) using multidimensional heteronuclear NMR is presented here. Nearly complete 1H, 13C, and 15N resonance assignments have been obtained from 15N- and 13C/15N-uniformly labeled protein. These assignments were used to analyze 3D 15N-separated NOESY and 13C/13C-separated 4D NOESY spectra which produced 494 total and 169 long-range NOE-derived distance restraints. Along with 41 backbone dihedral restraints, these distance restraints were employed to generate an intermediate-resolution family of calculated structures, which exhibits the beta alpha beta-beta alpha beta tertiary fold found in other RBD-containing proteins. The RMSD to the average structure for the backbone atoms of residues 11-93 is 1.55 +/- 0.30 A, while the RMSD for backbone atoms involved in secondary structure is 0.76 +/- 0.14 A. A capping box [Harper, E.T., & Rose, G.D. (1993) Biochemistry 32, 7605-7609] was identified at the N-terminus of the first helix and has been characterized by short- and medium-range NOEs. Finally, significant structural similarities and differences between Sxl RBD-2 and other RBD-containing proteins are discussed.


    Related Citations: 
    • 1H,13C, and 15N NMR Assignments and Global Folding Pattern of the RNA-Binding Domain of the Human Hnrnp C Proteins
      Wittekind, M.,Goerlach, M.,Friedrichs, M.,Dreyfuss, G.,Mueller, L.
      (1992) Biochemistry 31: 6254
    • Determination of the Secondary Structure and Folding Topology of an RNA Binding Domain of Mammalian Hnrnp A1 Protein Using Three-Dimensional Heteronuclear Magnetic Resonance Spectroscopy
      Garrett, D.S.,Lodi, P.J.,Shamoo, Y.,Williams, K.R.,Clore, G.M.,Gronenborn, A.M.
      (1994) Biochemistry 33: 2852
    • Crystal Structure of the RNA-Binding Domain of the U1 Small Nuclear Ribonucleoprotein A
      Nagai, K.,Oubridge, C.,Jessen, T.H.,Li, J.,Evans, P.R.
      (1990) Nature 348: 515


    Organizational Affiliation

    Department of Chemistry, University of California, Berkeley 94720-1460.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SEX-LETHAL PROTEIN PROTEIN
A
97Drosophila melanogasterMutation(s): 0 
Gene Names: Sxl (Sx1)
Find proteins for P19339 (Drosophila melanogaster)
Go to UniProtKB:  P19339
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 17 
  • Olderado: 1SXL Olderado
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-09-30
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance