1wit: Difference between revisions

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[[Image:1wit.png|left|200px]]
==TWITCHIN IMMUNOGLOBULIN SUPERFAMILY DOMAIN (IGSF MODULE) (IG 18'), NMR, MINIMIZED AVERAGE STRUCTURE==
<StructureSection load='1wit' size='340' side='right' caption='[[1wit]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1wit]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WIT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WIT FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1wiu|1wiu]]</td></tr>
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">UNC-22 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6239 Caenorhabditis elegans])</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=1wit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wit OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1wit RCSB], [http://www.ebi.ac.uk/pdbsum/1wit 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/wi/1wit_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 NMR solution structure of an immunoglobulin superfamily module of twitchin (Ig 18') has been determined and the kinetic and equilibrium folding behaviour characterised. Thirty molecular coordinates were calculated using a hybrid distance geometry-simulated annealing protocol based on 1207 distance and 48 dihedral restraints. The atomic rms distributions about the mean coordinate for the ensemble of structures is 0.55( +/- 0.09) A for backbone atoms and 1.10( +/- 0.08) A for all heavy atoms. The protein has a topology very similar to that of telokin and the titin Ig domains and thus it falls into the I set of the immunoglobulin superfamily. The close agreement between the predicted and observed structures of Ig 18' demonstrates clearly that the I set profile can be applied in the structure prediction of immunoglobulin-like domains of diverse modular proteins. Folding studies reveal that the protein has relatively low thermodynamic stability, deltaG(H2O)U-F = 4.0 kcal mol(-1) at physiological pH. Unfolding studies suggest that the protein has considerable kinetic stability, the half life of the unfolding is greater than 40 minutes in the absence of denaturant.


{{STRUCTURE_1wit|  PDB=1wit  |  SCENE=  }}
Structure and stability of an immunoglobulin superfamily domain from twitchin, a muscle protein of the nematode Caenorhabditis elegans.,Fong S, Hamill SJ, Proctor M, Freund SM, Benian GM, Chothia C, Bycroft M, Clarke J J Mol Biol. 1996 Dec 6;264(3):624-39. PMID:8969309<ref>PMID:8969309</ref>


===TWITCHIN IMMUNOGLOBULIN SUPERFAMILY DOMAIN (IGSF MODULE) (IG 18'), NMR, MINIMIZED AVERAGE STRUCTURE===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_8969309}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[1wit]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WIT OCA].
</StructureSection>
 
==Reference==
<ref group="xtra">PMID:008969309</ref><ref group="xtra">PMID:012217703</ref><references group="xtra"/>
[[Category: Caenorhabditis elegans]]
[[Category: Caenorhabditis elegans]]
[[Category: Bycroft, M.]]
[[Category: Bycroft, M.]]