1ipb: Difference between revisions

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[[Image:1ipb.png|left|200px]]
==CRYSTAL STRUCTURE OF EUKARYOTIC INITIATION FACTOR 4E COMPLEXED WITH 7-METHYL GPPPA==
<StructureSection load='1ipb' size='340' side='right' caption='[[1ipb]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1ipb]] is a 1 chain structure with 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=1IPB OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1IPB FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GTA:P1-7-METHYLGUANOSINE-P3-ADENOSINE-5,5-TRIPHOSPHATE'>GTA</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ipc|1ipc]]</td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ipb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ipb OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1ipb RCSB], [http://www.ebi.ac.uk/pdbsum/1ipb PDBsum]</span></td></tr>
<table>
== 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/ip/1ipb_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structures of the full-length human eukaryotic initiation factor (eIF) 4E complexed with two mRNA cap analogues [7-methylguanosine 5'-triphosphate (m(7)GTP) and P(1)-7-methylguanosine-P(3)-adenosine-5',5'-triphosphate (m(7)GpppA)] were determined at 2.0 A resolution (where 1 A=0.1 nm). The flexibility of the C-terminal loop region of eIF4E complexed with m(7)GTP was significantly reduced when complexed with m(7)GpppA, suggesting the importance of the second nucleotide in the mRNA cap structure for the biological function of eIF4E, especially the fixation and orientation of the C-terminal loop region, including the eIF4E phosphorylation residue. The present results provide the structural basis for the biological function of both N- and C-terminal mobile regions of eIF4E in translation initiation, especially the regulatory function through the switch-on/off of eIF4E-binding protein-eIF4E phosphorylation.


{{STRUCTURE_1ipb|  PDB=1ipb  |  SCENE=  }}
Crystal structures of 7-methylguanosine 5'-triphosphate (m(7)GTP)- and P(1)-7-methylguanosine-P(3)-adenosine-5',5'-triphosphate (m(7)GpppA)-bound human full-length eukaryotic initiation factor 4E: biological importance of the C-terminal flexible region.,Tomoo K, Shen X, Okabe K, Nozoe Y, Fukuhara S, Morino S, Ishida T, Taniguchi T, Hasegawa H, Terashima A, Sasaki M, Katsuya Y, Kitamura K, Miyoshi H, Ishikawa M, Miura K Biochem J. 2002 Mar 15;362(Pt 3):539-44. PMID:11879179<ref>PMID:11879179</ref>


===CRYSTAL STRUCTURE OF EUKARYOTIC INITIATION FACTOR 4E COMPLEXED WITH 7-METHYL GPPPA===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_11879179}}
 
==About this Structure==
[[1ipb]] is a 1 chain structure with 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=1IPB OCA].


==See Also==
==See Also==
*[[Eukaryotic initiation factor|Eukaryotic initiation factor]]
*[[Eukaryotic initiation factor|Eukaryotic initiation factor]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:011879179</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Fukuhara, S.]]
[[Category: Fukuhara, S.]]

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