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4wit
From Proteopedia
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<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=4wit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4wit OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4wit RCSB], [http://www.ebi.ac.uk/pdbsum/4wit 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=4wit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4wit OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4wit RCSB], [http://www.ebi.ac.uk/pdbsum/4wit PDBsum]</span></td></tr> | ||
</table> | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The TMEM16 family of proteins, also known as anoctamins, features a remarkable functional diversity. This family contains the long sought-after Ca2+-activated chloride channels as well as lipid scramblases and cation channels. Here we present the crystal structure of a TMEM16 family member from the fungus Nectria haematococca that operates as a Ca2+-activated lipid scramblase. Each subunit of the homodimeric protein contains ten transmembrane helices and a hydrophilic membrane-traversing cavity that is exposed to the lipid bilayer as a potential site of catalysis. This cavity harbours a conserved Ca2+-binding site located within the hydrophobic core of the membrane. Mutations of residues involved in Ca2+ coordination affect both lipid scrambling in N. haematococca TMEM16 and ion conduction in the Cl- channel TMEM16A. The structure reveals the general architecture of the family and its mode of Ca2+ activation. It also provides insight into potential scrambling mechanisms and serves as a framework to unravel the conduction of ions in certain TMEM16 proteins. | ||
| + | |||
| + | X-ray structure of a calcium-activated TMEM16 lipid scramblase.,Brunner JD, Lim NK, Schenck S, Duerst A, Dutzler R Nature. 2014 Nov 12. doi: 10.1038/nature13984. PMID:25383531<ref>PMID:25383531</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Revision as of 09:21, 19 November 2014
TMEM16 lipid scramblase in crystal form 2
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