View source for 4olo


==Ligand-free structure of the GrpU microcompartment shell protein from Clostridiales bacterium 1_7_47FAA==
<StructureSection load='4olo' size='340' side='right'caption='[[4olo]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4olo]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridiales_bacterium_1_7_47FAA Clostridiales bacterium 1_7_47FAA]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OLO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4OLO FirstGlance]. <br>
</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=4olo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4olo OCA], [https://pdbe.org/4olo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4olo RCSB], [https://www.ebi.ac.uk/pdbsum/4olo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4olo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/C5EE96_9FIRM C5EE96_9FIRM] 
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== Publication Abstract from PubMed ==
Recently, progress has been made toward understanding the functional diversity of bacterial microcompartment (MCP) systems, which serve as protein-based metabolic organelles in diverse microbes. New types of MCPs have been identified, including the glycyl-radical propanediol (Grp) MCP. Within these elaborate protein complexes, BMC-domain shell proteins assemble to form a polyhedral barrier that encapsulates the enzymatic contents of the MCP. Interestingly, the Grp MCP contains a number of shell proteins with unusual sequence features. GrpU is one such shell protein, whose amino acid sequence is particularly divergent from other members of the BMC-domain superfamily of proteins that effectively defines all MCPs. Expression, purification, and subsequent characterization of the protein showed, unexpectedly, that it binds an iron-sulfur cluster. We determined X-ray crystal structures of two GrpU orthologs, providing the first structural insight into the homohexameric BMC-domain shell proteins of the Grp system. The X-ray structures of GrpU, both obtained in the apo form, combined with spectroscopic analyses and computational modeling, show that the metal cluster resides in the central pore of the BMC shell protein at a position of broken 6-fold symmetry. The result is a structurally polymorphic iron-sulfur cluster binding site that appears to be unique among metalloproteins studied to date.

Identification of a Unique Fe-S Cluster Binding Site in a Glycyl-Radical Type Microcompartment Shell Protein.,Thompson MC, Wheatley NM, Jorda J, Sawaya MR, Gidaniyan SD, Ahmed H, Yang Z, McCarty KN, Whitelegge JP, Yeates TO J Mol Biol. 2014 Aug 4. pii: S0022-2836(14)00366-0. doi:, 10.1016/j.jmb.2014.07.018. PMID:25102080<ref>PMID:25102080</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 4olo" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Clostridiales bacterium 1_7_47FAA]]
[[Category: Large Structures]]
[[Category: Ahmed H]]
[[Category: McCarty KN]]
[[Category: Sawaya MR]]
[[Category: Thompson MC]]
[[Category: Yeates TO]]