View source for 4mt2


==COMPARISON OF THE NMR SOLUTION STRUCTURE AND THE X-RAY CRYSTAL STRUCTURE OF RAT METALLOTHIONEIN-2==
<StructureSection load='4mt2' size='340' side='right'caption='[[4mt2]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4mt2]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Black_rat Black rat]. This structure supersedes the now removed PDB entries [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2mt2 2mt2] and [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1mt2 1mt2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4MT2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4MT2 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4mt2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4mt2 OCA], [http://pdbe.org/4mt2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4mt2 RCSB], [http://www.ebi.ac.uk/pdbsum/4mt2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4mt2 ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/MT2_RAT MT2_RAT]] Metallothioneins have a high content of cysteine residues that bind various heavy metals; these proteins are transcriptionally regulated by both heavy metals and glucocorticoids. 
== 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/mt/4mt2_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=4mt2 ConSurf].
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== Publication Abstract from PubMed ==
Metallothioneins are small cysteine-rich proteins capable of binding heavy metal ions such as Zn2+ and Cd2+. They are ubiquitous tissue components in higher organisms, which tentatively have been attributed both unspecific protective functions against toxic metal ions and highly specific roles in fundamental zinc-regulated cellular processes. In this paper a detailed comparison of the NMR solution structure [Schultze, P., Worgotter, E., Braun, W., Wagner, G., Vasak, M., Kagi, J. H. R. &amp; Wuthrich, K. (1988) J. Mol. Biol. 203, 251-268] and a recent x-ray crystal structure [Robbins, A. H., McRee, D. E., Williamson, M., Collett, S. A., Xoung, N. H., Furey, W. F., Wang, B. C. &amp; Stout, C. D. (1991) J. Mol. Biol. 221, 1269-1293] of rat metallothionein-2 shows that the metallothionein structures in crystals and in solution have identical molecular architectures. The structures obtained with both techniques now present a reliable basis for discussions on structure-function correlations in this class of metalloproteins.

Comparison of the NMR solution structure and the x-ray crystal structure of rat metallothionein-2.,Braun W, Vasak M, Robbins AH, Stout CD, Wagner G, Kagi JH, Wuthrich K Proc Natl Acad Sci U S A. 1992 Nov 1;89(21):10124-8. PMID:1438200<ref>PMID:1438200</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 4mt2" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Black rat]]
[[Category: Large Structures]]
[[Category: Robbins, A H]]
[[Category: Stout, C D]]
[[Category: Metallothionein]]