2qpt

<StructureSection load='2qpt' size='340' side='right' caption='[[2qpt]], [[Resolution|resolution]] 3.10&Aring;' scene=''>

<table><tr><td colspan='2'>[[2qpt]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QPT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QPT FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Ehd2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</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=2qpt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qpt OCA], [http://pdbe.org/2qpt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qpt RCSB], [http://www.ebi.ac.uk/pdbsum/2qpt PDBsum]</span></td></tr>

[[http://www.uniprot.org/uniprot/EHD2_MOUSE EHD2_MOUSE]] Plays a role in membrane reorganization in response to nucleotide hydrolysis. Binds to liposomes and deforms them into tubules. Plays a role in membrane trafficking between the plasma membrane and endosomes. Important for the internalization of GLUT4. Required for normal fusion of myoblasts to skeletal muscle myotubes. Binds ATP; does not bind GTP.<ref>PMID:14676205</ref> <ref>PMID:18502764</ref>

<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qp/2qpt_consurf.spt"</scriptWhenChecked>

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== Publication Abstract from PubMed ==

The ability to actively remodel membranes in response to nucleotide hydrolysis has largely been attributed to GTPases of the dynamin superfamily, and these have been extensively studied. Eps15 homology (EH)-domain-containing proteins (EHDs/RME-1/pincher) comprise a less-well-characterized class of highly conserved eukaryotic ATPases implicated in clathrin-independent endocytosis, and recycling from endosomes. Here we show that EHDs share many common features with the dynamin superfamily, such as a low affinity for nucleotides, the ability to tubulate liposomes in vitro, oligomerization around lipid tubules in ring-like structures and stimulated nucleotide hydrolysis in response to lipid binding. We present the structure of EHD2, bound to a non-hydrolysable ATP analogue, and provide evidence consistent with a role for EHDs in nucleotide-dependent membrane remodelling in vivo. The nucleotide-binding domain is involved in dimerization, which creates a highly curved membrane-binding region in the dimer. Oligomerization of dimers occurs on another interface of the nucleotide-binding domain, and this allows us to model the EHD oligomer. We discuss the functional implications of the EHD2 structure for understanding membrane deformation.

Architectural and mechanistic insights into an EHD ATPase involved in membrane remodelling.,Daumke O, Lundmark R, Vallis Y, Martens S, Butler PJ, McMahon HT Nature. 2007 Oct 3;449(7164):923-927. PMID:17914359<ref>PMID:17914359</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 2qpt" style="background-color:#fffaf0;"></div>

[[Category: Lk3 transgenic mice]]

[[Category: Daumke, O]]

[[Category: Endocytosis]]

[[Category: Protein-nucleotide complex]]