3cvz

<StructureSection load='3cvz' size='340' side='right' caption='[[3cvz]], [[Resolution|resolution]] 2.40&Aring;' scene=''>

<table><tr><td colspan='2'>[[3cvz]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_difficilis"_hall_and_o'toole_1935 "bacillus difficilis" hall and o'toole 1935]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CVZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3CVZ FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GLY:GLYCINE'>GLY</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">slpA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1496 "Bacillus difficilis" Hall and O'Toole 1935])</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=3cvz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cvz OCA], [http://pdbe.org/3cvz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3cvz RCSB], [http://www.ebi.ac.uk/pdbsum/3cvz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3cvz ProSAT]</span></td></tr>

<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cv/3cvz_consurf.spt"</scriptWhenChecked>

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== Publication Abstract from PubMed ==

Clostridium difficile expresses a surface layer (S-layer) which coats the surface of the bacterium and acts as an adhesin facilitating interaction of the bacterium with host enteric cells. The S-layer contains a high-molecular-weight S-layer protein (HMW SLP) and its low-molecular-weight partner protein (LMW SLP). We show that these proteins form a tightly associated non-covalent complex, the H/L complex, and we identify the regions of both proteins responsible for complex formation. The 2.4 A X-ray crystal structure of a truncated derivative of the LMW SLP reveals two domains. Domain 1 has a two-layer sandwich architecture while domain 2, predicted to orientate towards the external environment, contains a novel fold. Small-angle X-ray scattering analysis of the H/L complex shows an elongated molecule, with the two SLPs arranged 'end-to-end' interacting with each other through a small contact area. Alignment of LMW SLPs, which exhibit high sequence diversity, reveals a core of conserved residues that could reflect functional conservation, while allowing for immune evasion through sequence variation. These structures are the first described for the S-layer of a bacterial pathogen, and provide insights into the assembly and biogenesis of the S-layer.

Structural insights into the molecular organization of the S-layer from Clostridium difficile.,Fagan RP, Albesa-Jove D, Qazi O, Svergun DI, Brown KA, Fairweather NF Mol Microbiol. 2009 Mar;71(5):1308-22. Epub 2009 Jan 29. PMID:19183279<ref>PMID:19183279</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 3cvz" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Bacillus difficilis hall and o'toole 1935]]

[[Category: Albesa-Jove, D]]

[[Category: Fagan, R]]

[[Category: Protein binding]]

[[Category: Surface layer protein]]