1sxl

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{{STRUCTURE_1sxl| PDB=1sxl | SCENE= }}
{{STRUCTURE_1sxl| PDB=1sxl | SCENE= }}
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'''RESONANCE ASSIGNMENTS AND SOLUTION STRUCTURE OF THE SECOND RNA-BINDING DOMAIN OF SEX-LETHAL DETERMINED BY MULTIDIMENSIONAL HETERONUCLEAR MAGNETIC RESONANCE SPECTROSCOPY'''
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===RESONANCE ASSIGNMENTS AND SOLUTION STRUCTURE OF THE SECOND RNA-BINDING DOMAIN OF SEX-LETHAL DETERMINED BY MULTIDIMENSIONAL HETERONUCLEAR MAGNETIC RESONANCE SPECTROSCOPY===
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==Overview==
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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., &amp; 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.
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{{ABSTRACT_PUBMED_7524663}}
==About this Structure==
==About this Structure==
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1SXL is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SXL OCA].
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1SXL is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SXL OCA].
==Reference==
==Reference==
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[[Category: Wemmer, D E.]]
[[Category: Wemmer, D E.]]
[[Category: Rna-binding protein]]
[[Category: Rna-binding protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:15:14 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 11:51:52 2008''

Revision as of 08:51, 28 July 2008

Template:STRUCTURE 1sxl

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

Template:ABSTRACT PUBMED 7524663

About this Structure

1SXL is a Single protein structure of sequence from Drosophila melanogaster. Full experimental information is available from OCA.

Reference

Resonance assignments and solution structure of the second RNA-binding domain of sex-lethal determined by multidimensional heteronuclear magnetic resonance., Lee AL, Kanaar R, Rio DC, Wemmer DE, Biochemistry. 1994 Nov 22;33(46):13775-86. PMID:7524663

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