3etw: Difference between revisions
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==Crystal Structure of bacterial adhesin FadA== | ==Crystal Structure of bacterial adhesin FadA== | ||
<StructureSection load='3etw' size='340' side='right' caption='[[3etw]], [[Resolution|resolution]] 2.00Å' scene=''> | <StructureSection load='3etw' size='340' side='right' caption='[[3etw]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3etw]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[3etw]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_fusiformis"_veillon_and_zuber_1898 "bacillus fusiformis" veillon and zuber 1898]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2avr 2avr]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ETW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ETW FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SCN:THIOCYANATE+ION'>SCN</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SCN:THIOCYANATE+ION'>SCN</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3etx|3etx]], [[3ety|3ety]], [[3etz|3etz]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3etx|3etx]], [[3ety|3ety]], [[3etz|3etz]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fadA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=851 | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fadA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=851 "Bacillus fusiformis" Veillon and Zuber 1898])</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=3etw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3etw OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3etw RCSB], [http://www.ebi.ac.uk/pdbsum/3etw PDBsum]</span></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=3etw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3etw OCA], [http://pdbe.org/3etw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3etw RCSB], [http://www.ebi.ac.uk/pdbsum/3etw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3etw ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 3etw" style="background-color:#fffaf0;"></div> | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Bacillus fusiformis veillon and zuber 1898]] | ||
[[Category: Han, Y W]] | [[Category: Han, Y W]] | ||
[[Category: Nithianantham, S]] | [[Category: Nithianantham, S]] | ||
Revision as of 18:45, 11 August 2016
Crystal Structure of bacterial adhesin FadACrystal Structure of bacterial adhesin FadA
Structural highlights
Publication Abstract from PubMedMany bacterial appendages have filamentous structures, often composed of repeating monomers assembled in a head-to-tail manner. The mechanisms of such linkages vary. We report here a novel protein oligomerization motif identified in the FadA adhesin from the Gram-negative bacterium Fusobacterium nucleatum. The 2.0 A crystal structure of the secreted form of FadA (mFadA) reveals two antiparallel -helices connected by an intervening eight-residue hairpin loop. Leucine-leucine contacts play a prominent dual intra- and inter-molecular role in the structure and function of FadA. First, they comprise the main association between the two helical arms of the monomer; second, they mediate the head-to-tail association of monomers to form the elongated polymers. This leucine-mediated filamentous assembly of FadA molecules constitutes a novel structural motif termed the "leucine chain". The essential role of these residues in FadA is corroborated by mutagenesis of selected leucine residues, which leads to the abrogation of oligomerization, filament formation, and binding to host cells. Crystal structure of FadA adhesin from fusobacterium nucleatum reveals a novel oligomerization motif: The leucine chain.,Nithianantham S, Xu M, Yamada M, Ikegami A, Shoham M, Han YW J Biol Chem. 2008 Nov 7. PMID:18996848[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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