View source for 5cag


==Crystal structure of a putative adhesin (BACOVA_02677) from Bacteroides ovatus ATCC 8483 at 3.00 A resolution (PSI Community Target, Nakayama)==
<StructureSection load='5cag' size='340' side='right'caption='[[5cag]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5cag]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacteroides_ovatus_ATCC_8483 Bacteroides ovatus ATCC 8483]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5CAG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5CAG FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=5cag FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5cag OCA], [https://pdbe.org/5cag PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5cag RCSB], [https://www.ebi.ac.uk/pdbsum/5cag PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5cag ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FIMB_BACO1 FIMB_BACO1] Putative fimbrium anchoring subunit.<ref>PMID:27062925</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Pili are proteinaceous polymers of linked pilins that protrude from the cell surface of many bacteria and often mediate adherence and virulence. We investigated a set of 20 Bacteroidia pilins from the human microbiome whose structures and mechanism of assembly were unknown. Crystal structures and biochemical data revealed a diverse protein superfamily with a common Greek-key beta sandwich fold with two transthyretin-like repeats that polymerize into a pilus through a strand-exchange mechanism. The assembly mechanism of the central, structural pilins involves proteinase-assisted removal of their N-terminal beta strand, creating an extended hydrophobic groove that binds the C-terminal donor strands of the incoming pilin. Accessory pilins at the tip and base have unique structural features specific to their location, allowing initiation or termination of the assembly. The Bacteroidia pilus, therefore, has a biogenesis mechanism that is distinct from other known pili and likely represents a different type of bacterial pilus.

A Distinct Type of Pilus from the Human Microbiome.,Xu Q, Shoji M, Shibata S, Naito M, Sato K, Elsliger MA, Grant JC, Axelrod HL, Chiu HJ, Farr CL, Jaroszewski L, Knuth MW, Deacon AM, Godzik A, Lesley SA, Curtis MA, Nakayama K, Wilson IA Cell. 2016 Apr 21;165(3):690-703. doi: 10.1016/j.cell.2016.03.016. Epub 2016 Apr , 7. PMID:27062925<ref>PMID:27062925</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5cag" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Bacteroides ovatus ATCC 8483]]
[[Category: Large Structures]]
[[Category: Nakayama K]]