3dkt: Difference between revisions

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==Crystal structure of Thermotoga maritima encapsulin==
==Crystal structure of Thermotoga maritima encapsulin==
<StructureSection load='3dkt' size='340' side='right' caption='[[3dkt]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
<StructureSection load='3dkt' size='340' side='right'caption='[[3dkt]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3dkt]] is a 20 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. The June 2009 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Vaults''  by David Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2009_6 10.2210/rcsb_pdb/mom_2009_6]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DKT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3DKT FirstGlance]. <br>
<table><tr><td colspan='2'>[[3dkt]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. The June 2009 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Vaults''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2009_6 10.2210/rcsb_pdb/mom_2009_6]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DKT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DKT FirstGlance]. <br>
</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=3dkt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dkt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3dkt RCSB], [http://www.ebi.ac.uk/pdbsum/3dkt PDBsum]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.104&#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=3dkt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dkt OCA], [https://pdbe.org/3dkt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dkt RCSB], [https://www.ebi.ac.uk/pdbsum/3dkt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dkt ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ENCAP_THEMA ENCAP_THEMA] Shell component of a type 1 encapsulin nanocompartment. Assembles into proteinaceous shells 23-24 nm in diameter with 2-2.5 nm thick walls. Cargo protein Flp (ferritin-like protein, may store iron) is targeted to the interior via its C-terminal extension; empty intact shells can be isolated in the absence of cargo protein (PubMed:19172747, PubMed:27224728, PubMed:32961724, PubMed:30376298, PubMed:33769792, PubMed:33953921, PubMed:34815415). Fe(2+) may be able to pass though the 5-fold and dimer channels in the protein shell (Probable).<ref>PMID:19172747</ref> <ref>PMID:27224728</ref> <ref>PMID:30376298</ref> <ref>PMID:32961724</ref> <ref>PMID:33769792</ref> <ref>PMID:33953921</ref> <ref>PMID:34815415</ref> <ref>PMID:33953921</ref>  Protease that exhibits activity toward chymotrypsin and trypsin substrates (PubMed:9872409, PubMed:11210524). Probably does not have antibacterial activity (Probable).<ref>PMID:11210524</ref> <ref>PMID:9872409</ref> <ref>PMID:19172747</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dk/3dkt_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dk/3dkt_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </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].
</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=3dkt ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Compartmentalization is an important organizational feature of life. It occurs at varying levels of complexity ranging from eukaryotic organelles and the bacterial microcompartments, to the molecular reaction chambers formed by enzyme assemblies. The structural basis of enzyme encapsulation in molecular compartments is poorly understood. Here we show, using X-ray crystallographic, biochemical and EM experiments, that a widespread family of conserved bacterial proteins, the linocin-like proteins, form large assemblies that function as a minimal compartment to package enzymes. We refer to this shell-forming protein as 'encapsulin'. The crystal structure of such a particle from Thermotoga maritima determined at 3.1-angstroms resolution reveals that 60 copies of the monomer assemble into a thin, icosahedral shell with a diameter of 240 angstroms. The interior of this nanocompartment is lined with conserved binding sites for short polypeptide tags present as C-terminal extensions of enzymes involved in oxidative-stress response.
Structural basis of enzyme encapsulation into a bacterial nanocompartment.,Sutter M, Boehringer D, Gutmann S, Gunther S, Prangishvili D, Loessner MJ, Stetter KO, Weber-Ban E, Ban N Nat Struct Mol Biol. 2008 Sep;15(9):939-47. PMID:19172747<ref>PMID:19172747</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
==See Also==
*[[Teaching Scenes%2C Tutorials%2C and Educators' Pages|Teaching Scenes%2C Tutorials%2C and Educators' Pages]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Thermotoga maritima]]
[[Category: Thermotoga maritima]]
[[Category: Vaults]]
[[Category: Vaults]]
[[Category: Ban, N]]
[[Category: Ban N]]
[[Category: Boehringer, D]]
[[Category: Boehringer D]]
[[Category: Gutmann, S]]
[[Category: Gutmann S]]
[[Category: Sutter, M]]
[[Category: Sutter M]]
[[Category: Weber-Ban, E]]
[[Category: Weber-Ban E]]
[[Category: Antibiotic]]
[[Category: Antimicrobial]]
[[Category: Bacteriocin]]
[[Category: Cobalt]]
[[Category: Enzyme encapsulation]]
[[Category: Ferritin-like protein]]
[[Category: Hk97-fold]]
[[Category: Hydrolase]]
[[Category: Nanocompartment]]
[[Category: Oxidative stress]]
[[Category: Protease]]
[[Category: Secreted]]
[[Category: Structural protein-virus like particle complex]]

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