1fuk: Difference between revisions

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[[Image:1fuk.jpg|left|200px]]


{{Structure
==CRYSTAL STRUCTURE OF THE CARBOXY TERMINAL DOMAIN OF YEAST EIF4A==
|PDB= 1fuk |SIZE=350|CAPTION= <scene name='initialview01'>1fuk</scene>, resolution 1.75&Aring;
<StructureSection load='1fuk' size='340' side='right'caption='[[1fuk]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=ZN:ZINC ION'>ZN</scene>
<table><tr><td colspan='2'>[[1fuk]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FUK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FUK 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]] 1.75&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
}}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1fuk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fuk OCA], [https://pdbe.org/1fuk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fuk RCSB], [https://www.ebi.ac.uk/pdbsum/1fuk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fuk ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/IF4A_YEAST IF4A_YEAST]
== 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/fu/1fuk_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=1fuk ConSurf].
<div style="clear:both"></div>


'''CRYSTAL STRUCTURE OF THE CARBOXY TERMINAL DOMAIN OF YEAST EIF4A'''
==See Also==
 
*[[Eukaryotic initiation factor 3D structures|Eukaryotic initiation factor 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
The eukaryotic translation initiation factor 4A (eIF4A) is a member of the DEA(D/H)-box RNA helicase family, a diverse group of proteins that couples an ATPase activity to RNA binding and unwinding. Previous work has provided the structure of the amino-terminal, ATP-binding domain of eIF4A. Extending those results, we have solved the structure of the carboxyl-terminal domain of eIF4A with data to 1.75 A resolution; it has a parallel alpha-beta topology that superimposes, with minor variations, on the structures and conserved motifs of the equivalent domain in other, distantly related helicases. Using data to 2.8 A resolution and molecular replacement with the refined model of the carboxyl-terminal domain, we have completed the structure of full-length eIF4A; it is a "dumbbell" structure consisting of two compact domains connected by an extended linker. By using the structures of other helicases as a template, compact structures can be modeled for eIF4A that suggest (i) helicase motif IV binds RNA; (ii) Arg-298, which is conserved in the DEA(D/H)-box RNA helicase family but is absent from many other helicases, also binds RNA; and (iii) motifs V and VI "link" the carboxyl-terminal domain to the amino-terminal domain through interactions with ATP and the DEA(D/H) motif, providing a mechanism for coupling ATP binding and hydrolysis with conformational changes that modulate RNA binding.
[[Category: Large Structures]]
 
==About this Structure==
1FUK is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FUK OCA].
 
==Reference==
Crystal structure of yeast initiation factor 4A, a DEAD-box RNA helicase., Caruthers JM, Johnson ER, McKay DB, Proc Natl Acad Sci U S A. 2000 Nov 21;97(24):13080-5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11087862 11087862]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Single protein]]
[[Category: Caruthers JM]]
[[Category: Caruthers, J M.]]
[[Category: Johnson ER]]
[[Category: Johnson, E R.]]
[[Category: McKay DB]]
[[Category: McKay, D B.]]
[[Category: ZN]]
[[Category: dead-box protein]]
[[Category: helicase]]
[[Category: initiation factor 4a]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:14:10 2008''
Retrieved from "https://proteopedia.org/1fuk"