2nps

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[[Image:2nps.jpg|left|200px]]
 
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{{Structure
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==Crystal Structure of the Early Endosomal SNARE Complex==
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|PDB= 2nps |SIZE=350|CAPTION= <scene name='initialview01'>2nps</scene>, resolution 2.5&Aring;
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<StructureSection load='2nps' size='340' side='right'caption='[[2nps]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND=
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<table><tr><td colspan='2'>[[2nps]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens], [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NPS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NPS FirstGlance]. <br>
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|ACTIVITY=
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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|GENE= Vamp4_predicted ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus]), syntaxin 13 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Rattus norvegicus]), Vti1a ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Rattus norvegicus]), STX6 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2nps FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2nps OCA], [https://pdbe.org/2nps PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2nps RCSB], [https://www.ebi.ac.uk/pdbsum/2nps PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2nps ProSAT]</span></td></tr>
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}}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/VAMP4_MOUSE VAMP4_MOUSE] Involved in the pathway that functions to remove an inhibitor (probably synaptotagmin-4) of calcium-triggered exocytosis during the maturation of secretory granules. May be a marker for this sorting pathway that is critical for remodeling the secretory response of granule (By similarity).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/np/2nps_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2nps ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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SNARE proteins mediate membrane fusion in eukaryotic cells. They contain conserved SNARE motifs that are usually located adjacent to a C-terminal transmembrane domain. SNARE motifs spontaneously assemble into four helix bundles, with each helix belonging to a different subfamily. Liposomes containing SNAREs spontaneously fuse with each other, but it is debated how the SNAREs are distributed between the membranes. Here, we report that the SNAREs mediating homotypic fusion of early endosomes fuse liposomes in five out of seven possible combinations, in contrast to previously studied SNAREs involved in heterotypic fusion events. The crystal structure of the early endosomal SNARE complex resembles that of the neuronal and late endosomal complexes, but differs in surface side-chain interactions. We conclude that homotypic fusion reactions may proceed with multiple SNARE topologies, suggesting that the conserved SNARE structure allows for flexibility in the initial interactions needed for fusion.
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'''Crystal Structure of the Early Endosomal SNARE Complex'''
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Early endosomal SNAREs form a structurally conserved SNARE complex and fuse liposomes with multiple topologies.,Zwilling D, Cypionka A, Pohl WH, Fasshauer D, Walla PJ, Wahl MC, Jahn R EMBO J. 2007 Jan 10;26(1):9-18. Epub 2006 Dec 7. PMID:17159904<ref>PMID:17159904</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 2nps" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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SNARE proteins mediate membrane fusion in eukaryotic cells. They contain conserved SNARE motifs that are usually located adjacent to a C-terminal transmembrane domain. SNARE motifs spontaneously assemble into four helix bundles, with each helix belonging to a different subfamily. Liposomes containing SNAREs spontaneously fuse with each other, but it is debated how the SNAREs are distributed between the membranes. Here, we report that the SNAREs mediating homotypic fusion of early endosomes fuse liposomes in five out of seven possible combinations, in contrast to previously studied SNAREs involved in heterotypic fusion events. The crystal structure of the early endosomal SNARE complex resembles that of the neuronal and late endosomal complexes, but differs in surface side-chain interactions. We conclude that homotypic fusion reactions may proceed with multiple SNARE topologies, suggesting that the conserved SNARE structure allows for flexibility in the initial interactions needed for fusion.
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*[[Syntaxin 3D structures|Syntaxin 3D structures]]
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*[[Vesicle-associated membrane protein|Vesicle-associated membrane protein]]
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==About this Structure==
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== References ==
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2NPS is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens], [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NPS OCA].
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<references/>
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__TOC__
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==Reference==
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</StructureSection>
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Early endosomal SNAREs form a structurally conserved SNARE complex and fuse liposomes with multiple topologies., Zwilling D, Cypionka A, Pohl WH, Fasshauer D, Walla PJ, Wahl MC, Jahn R, EMBO J. 2007 Jan 10;26(1):9-18. Epub 2006 Dec 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17159904 17159904]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Protein complex]]
 
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
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[[Category: Cypionka, A.]]
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[[Category: Cypionka A]]
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[[Category: Fasshauer, D.]]
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[[Category: Fasshauer D]]
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[[Category: Jahn, R.]]
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[[Category: Jahn R]]
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[[Category: Pohl, W H.]]
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[[Category: Pohl WH]]
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[[Category: Wahl, M C.]]
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[[Category: Wahl MC]]
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[[Category: Walla, P J.]]
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[[Category: Walla PJ]]
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[[Category: Zwilling, D.]]
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[[Category: Zwilling D]]
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[[Category: early endosomal snare complex]]
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[[Category: snare complex]]
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[[Category: syntaxin 13]]
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[[Category: syntaxin 6]]
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[[Category: vamp4]]
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[[Category: vesicle fusion]]
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[[Category: vti1a]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:49:34 2008''
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Current revision

Crystal Structure of the Early Endosomal SNARE Complex

PDB ID 2nps

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