3lnn

<StructureSection load='3lnn' size='340' side='right' caption='[[3lnn]], [[Resolution|resolution]] 2.80&Aring;' scene=''>

<table><tr><td colspan='2'>[[3lnn]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Cupriavidus_metallidurans_ch34 Cupriavidus metallidurans ch34]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3LNN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3LNN FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Rmet_5330, ZneB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=266264 Cupriavidus metallidurans CH34])</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=3lnn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3lnn OCA], [http://pdbe.org/3lnn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3lnn RCSB], [http://www.ebi.ac.uk/pdbsum/3lnn PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3lnn ProSAT]</span></td></tr>

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

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== Publication Abstract from PubMed ==

Resistance nodulation cell division (RND)-based efflux complexes mediate multidrug and heavy-metal resistance in many Gram-negative bacteria. Efflux of toxic compounds is driven by membrane proton/substrate antiporters (RND protein) in the plasma membrane, linked by a membrane fusion protein (MFP) to an outer-membrane protein. The three-component complex forms an efflux system that spans the entire cell envelope. The MFP is required for the assembly of this complex and is proposed to play an important active role in substrate efflux. To better understand the role of MFPs in RND-driven efflux systems, we chose ZneB, the MFP component of the ZneCAB heavy-metal efflux system from Cupriavidus metallidurans CH34. ZneB is shown to be highly specific for Zn(2+) alone. The crystal structure of ZneB to 2.8 A resolution defines the basis for metal ion binding in the coordination site at a flexible interface between the beta-barrel and membrane proximal domains. The conformational differences observed between the crystal structures of metal-bound and apo forms are monitored in solution by spectroscopy and chromatography. The structural rearrangements between the two states suggest an active role in substrate efflux through metal binding and release.

Metal-induced conformational changes in ZneB suggest an active role of membrane fusion proteins in efflux resistance systems.,De Angelis F, Lee JK, O'Connell JD 3rd, Miercke LJ, Verschueren KH, Srinivasan V, Bauvois C, Govaerts C, Robbins RA, Ruysschaert JM, Stroud RM, Vandenbussche G Proc Natl Acad Sci U S A. 2010 Jun 15;107(24):11038-43. Epub 2010 Jun 1. PMID:20534468<ref>PMID:20534468</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 3lnn" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Cupriavidus metallidurans ch34]]

[[Category: Angelis, F De]]

[[Category: CSMP, Center for Structures of Membrane Proteins]]

[[Category: Lee, J K]]

[[Category: Miercke, L J]]

[[Category: Stroud, R M]]

[[Category: Vandenbussche, G]]

[[Category: Structural genomic]]