1e7k
From Proteopedia
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[[Image:1e7k.gif|left|200px]] | [[Image:1e7k.gif|left|200px]] | ||
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'''CRYSTAL STRUCTURE OF THE SPLICEOSOMAL 15.5KD PROTEIN BOUND TO A U4 SNRNA FRAGMENT''' | '''CRYSTAL STRUCTURE OF THE SPLICEOSOMAL 15.5KD PROTEIN BOUND TO A U4 SNRNA FRAGMENT''' | ||
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[[Category: Nottrott, S.]] | [[Category: Nottrott, S.]] | ||
[[Category: Vidovic, I.]] | [[Category: Vidovic, I.]] | ||
- | [[Category: | + | [[Category: Rna recognition motif]] |
- | [[Category: | + | [[Category: Splicing]] |
- | [[Category: | + | [[Category: U4 snrna]] |
- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:45:46 2008'' | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 11:45, 2 May 2008
CRYSTAL STRUCTURE OF THE SPLICEOSOMAL 15.5KD PROTEIN BOUND TO A U4 SNRNA FRAGMENT
Overview
We have determined the crystal structure of a spliceosomal RNP complex comprising the 15.5kD protein of the human U4/U6.U5 tri-snRNP and the 5' stem-loop of U4 snRNA. The protein interacts almost exclusively with a purine-rich (5+2) internal loop within the 5' stem-loop, giving an unusual RNA fold characterized by two tandem sheared G-A base pairs, a high degree of purine stacking, and the accommodation of a single RNA base, rotated out of the RNA chain, in a pocket of the protein. Apart from yielding the structure of an important entity in the pre-mRNA splicing apparatus, this work also implies a model for the complex of the 15.5kD protein with box C/D snoRNAs. It additionally suggests a general recognition principle in a novel family of RNA binding proteins.
About this Structure
1E7K is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of the spliceosomal 15.5kD protein bound to a U4 snRNA fragment., Vidovic I, Nottrott S, Hartmuth K, Luhrmann R, Ficner R, Mol Cell. 2000 Dec;6(6):1331-42. PMID:11163207 Page seeded by OCA on Fri May 2 14:45:46 2008