4g1u
From Proteopedia
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| - | [[ | + | ==X-ray structure of the bacterial heme transporter HmuUV from Yersinia pestis== |
| + | <StructureSection load='4g1u' size='340' side='right' caption='[[4g1u]], [[Resolution|resolution]] 3.01Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4g1u]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Yersinia_pestis Yersinia pestis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G1U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4G1U FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">hmuU, YPO0280, y0540, YP_0435 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=632 Yersinia pestis]), hmuV, YPO0279, y0539, YP_0434 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=632 Yersinia pestis])</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=4g1u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g1u OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4g1u RCSB], [http://www.ebi.ac.uk/pdbsum/4g1u PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | HmuUV is a bacterial ATP-binding cassette (ABC) transporter that catalyzes heme uptake into the cytoplasm of the Gram-negative pathogen Yersinia pestis. We report the crystal structure of HmuUV at 3.0 A resolution in a nucleotide-free state, which features a heme translocation pathway in an outward-facing conformation, poised to accept a heme from the cognate periplasmic binding protein HmuT. A new assay allowed us to determine in vitro rates of HmuUV-catalyzed heme transport into proteoliposomes and to establish the role of conserved residues in the translocation pathway of HmuUV and at the interface with HmuT. Differences in architecture relative to the related vitamin B(12) transporter BtuCD suggest an adaptation of HmuUV for its smaller substrate. Our study also suggests that type II ABC importers, which include bacterial iron-siderophore, heme and cobalamin transporters, have a coupling mechanism distinct from that of other ABC transporters. | ||
| - | + | X-ray structure of the Yersinia pestis heme transporter HmuUV.,Woo JS, Zeltina A, Goetz BA, Locher KP Nat Struct Mol Biol. 2012 Dec;19(12):1310-5. doi: 10.1038/nsmb.2417. Epub 2012, Nov 11. PMID:23142986<ref>PMID:23142986</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | == | + | __TOC__ |
| - | + | </StructureSection> | |
[[Category: Yersinia pestis]] | [[Category: Yersinia pestis]] | ||
| - | [[Category: Goetz, B A | + | [[Category: Goetz, B A]] |
| - | [[Category: Locher, K P | + | [[Category: Locher, K P]] |
| - | [[Category: Woo, J S | + | [[Category: Woo, J S]] |
| - | [[Category: Zeltina, A | + | [[Category: Zeltina, A]] |
[[Category: Hmut]] | [[Category: Hmut]] | ||
[[Category: Membrane transporter]] | [[Category: Membrane transporter]] | ||
Revision as of 10:35, 20 January 2015
X-ray structure of the bacterial heme transporter HmuUV from Yersinia pestis
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