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[[Image:1e7k.gif|left|200px]]


{{Structure
==Crystal structure of the spliceosomal 15.5kD protein bound to a U4 snRNA fragment==
|PDB= 1e7k |SIZE=350|CAPTION= <scene name='initialview01'>1e7k</scene>, resolution 2.9&Aring;
<StructureSection load='1e7k' size='340' side='right'caption='[[1e7k]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=A:ADENOSINE-5&#39;-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=C:CYTIDINE-5&#39;-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5&#39;-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=U:URIDINE-5&#39;-MONOPHOSPHATE'>U</scene>
<table><tr><td colspan='2'>[[1e7k]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E7K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E7K FirstGlance]. <br>
|ACTIVITY=
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.9&#8491;</td></tr>
|GENE=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1e7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e7k OCA], [https://pdbe.org/1e7k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e7k RCSB], [https://www.ebi.ac.uk/pdbsum/1e7k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e7k ProSAT]</span></td></tr>
|DOMAIN=
</table>
|RELATEDENTRY=
== Function ==
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1e7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e7k OCA], [http://www.ebi.ac.uk/pdbsum/1e7k PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1e7k RCSB]</span>
[https://www.uniprot.org/uniprot/NH2L1_HUMAN NH2L1_HUMAN] Binds to the 5'-stem-loop of U4 snRNA and may play a role in the late stage of spliceosome assembly. The protein undergoes a conformational change upon RNA-binding.<ref>PMID:10545122</ref> <ref>PMID:17412961</ref>
}}
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/e7/1e7k_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1e7k ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
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.


'''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.,Vidovic I, Nottrott S, Hartmuth K, Luhrmann R, Ficner R Mol Cell. 2000 Dec;6(6):1331-42. PMID:11163207<ref>PMID:11163207</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1e7k" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
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.
*[[Kink-turn motif|Kink-turn motif]]
 
*[[User:Wayne Decatur/kink-turn motif|User:Wayne Decatur/kink-turn motif]]
==About this Structure==
== References ==
1E7K is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E7K OCA].
<references/>
 
__TOC__
==Reference==
</StructureSection>
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:[http://www.ncbi.nlm.nih.gov/pubmed/11163207 11163207]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Ficner, R.]]
[[Category: Ficner R]]
[[Category: Harthmuth, K.]]
[[Category: Harthmuth K]]
[[Category: Luhrmann, R.]]
[[Category: Luhrmann R]]
[[Category: Nottrott, S.]]
[[Category: Nottrott S]]
[[Category: Vidovic, I.]]
[[Category: Vidovic I]]
[[Category: rna recognition motif]]
[[Category: splicing]]
[[Category: u4 snrna]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:56:50 2008''
Retrieved from "https://proteopedia.org/1e7k"