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New page: left|200px<br /><applet load="2fxt" size="450" color="white" frame="true" align="right" spinBox="true" caption="2fxt, resolution 3.20Å" /> '''Crystal Structure of...
 
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[[Image:2fxt.jpg|left|200px]]<br /><applet load="2fxt" size="450" color="white" frame="true" align="right" spinBox="true"
caption="2fxt, resolution 3.20&Aring;" />
'''Crystal Structure of Yeast Tim44'''<br />


==Overview==
==Crystal Structure of Yeast Tim44==
The protein transports from the cell cytosol to the mitochondria matrix, are carried out by the translocase of the outer membrane (TOM) complex and, the translocase of the inner membrane (TIM) complexes. Tim44p is an, essential mitochondrial peripheral membrane protein and a major component, of TIM23 translocon. Tim44p can tightly associate with the inner, mitochondrial membrane. To investigate the mechanism by which Tim44p, functions in the TIM23 translocon to deliver the mitochondrial protein, precursors, we have determined the crystal structure of the yeast Tim44p, C-terminal domain to 3.2A resolution using the MAD method. The Tim44p, C-terminal domain forms a monomer in the crystal structure and contains, six alpha-helices and four antiparallel beta-strands. A large hydrophobic, pocket was identified on the Tim44p structure surface. The N-terminal, helix A1 is positively charged and the helix A1 protrudes out from the, Tim44p main body.
<StructureSection load='2fxt' size='340' side='right'caption='[[2fxt]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[2fxt]] 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=2FXT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FXT FirstGlance]. <br>
2FXT is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2FXT OCA].  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.2&#8491;</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=2fxt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fxt OCA], [https://pdbe.org/2fxt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fxt RCSB], [https://www.ebi.ac.uk/pdbsum/2fxt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fxt ProSAT]</span></td></tr>
==Reference==
</table>
Crystal structure of yeast mitochondrial peripheral membrane protein Tim44p C-terminal domain., Josyula R, Jin Z, Fu Z, Sha B, J Mol Biol. 2006 Jun 9;359(3):798-804. Epub 2006 Apr 27. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16647716 16647716]
== Function ==
[https://www.uniprot.org/uniprot/TIM44_YEAST TIM44_YEAST] Essential component of the PAM complex, a complex required for the translocation of transit peptide-containing proteins from the inner membrane into the mitochondrial matrix in an ATP-dependent manner. Recruits mitochondrial HSP70 and its co-chaperone (MGE1) to drive protein translocation into the matrix using ATP as an energy source.
== 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/fx/2fxt_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=2fxt ConSurf].
<div style="clear:both"></div>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Single protein]]
[[Category: Josyula R]]
[[Category: Josyula, R.]]
[[Category: Sha B]]
[[Category: Sha, B.]]
[[Category: mitochondrial translocase]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 10:49:49 2007''

Latest revision as of 09:25, 14 February 2024

Crystal Structure of Yeast Tim44

2fxt, resolution 3.20Å

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