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==THREE DIMENSIONAL STRUCTURE OF THE N-TERMINAL DOMAIN OF SYNTAXIN 1A==
==THREE DIMENSIONAL STRUCTURE OF THE N-TERMINAL DOMAIN OF SYNTAXIN 1A==
<StructureSection load='1br0' size='340' side='right'caption='[[1br0]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''>
<StructureSection load='1br0' size='340' side='right'caption='[[1br0]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1br0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. The November 2013 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''SNARE Proteins''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2013_11 10.2210/rcsb_pdb/mom_2013_11]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BR0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BR0 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1br0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. The November 2013 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''SNARE Proteins''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2013_11 10.2210/rcsb_pdb/mom_2013_11]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BR0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BR0 FirstGlance]. <br>
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1br0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1br0 OCA], [https://pdbe.org/1br0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1br0 RCSB], [https://www.ebi.ac.uk/pdbsum/1br0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1br0 ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1br0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1br0 OCA], [https://pdbe.org/1br0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1br0 RCSB], [https://www.ebi.ac.uk/pdbsum/1br0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1br0 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/STX1A_RAT STX1A_RAT]] Potentially involved in docking of synaptic vesicles at presynaptic active zones. May play a critical role in neurotransmitter exocytosis. May mediate Ca(2+)-regulation of exocytosis acrosomal reaction in sperm.  
[https://www.uniprot.org/uniprot/STX1A_RAT STX1A_RAT] Potentially involved in docking of synaptic vesicles at presynaptic active zones. May play a critical role in neurotransmitter exocytosis. May mediate Ca(2+)-regulation of exocytosis acrosomal reaction in sperm.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1br0 ConSurf].
</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=1br0 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Syntaxin 1A plays a central role in neurotransmitter release through multiple protein-protein interactions. We have used NMR spectroscopy to identify an autonomously folded N-terminal domain in syntaxin 1A and to elucidate its three-dimensional structure. This 120-residue N-terminal domain is conserved in plasma membrane syntaxins but not in other syntaxins, indicating a specific role in exocytosis. The domain contains three long alpha helices that form an up-and-down bundle with a left-handed twist. A striking residue conservation is observed throughout a long groove that is likely to provide a specific surface for protein-protein interactions. A highly acidic region binds to the C2A domain of synaptotagmin I in a Ca2+-dependent interaction that may serve as an electrostatic switch in neurotransmitter release.
Three-dimensional structure of an evolutionarily conserved N-terminal domain of syntaxin 1A.,Fernandez I, Ubach J, Dulubova I, Zhang X, Sudhof TC, Rizo J Cell. 1998 Sep 18;94(6):841-9. PMID:9753330<ref>PMID:9753330</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1br0" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Syntaxin 3D structures|Syntaxin 3D structures]]
*[[Syntaxin 3D structures|Syntaxin 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Buffalo rat]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Rattus norvegicus]]
[[Category: SNARE Proteins]]
[[Category: SNARE Proteins]]
[[Category: Dubulova, I]]
[[Category: Dubulova I]]
[[Category: Fernandez, I]]
[[Category: Fernandez I]]
[[Category: Rizo, J]]
[[Category: Rizo J]]
[[Category: Sudhof, T C]]
[[Category: Sudhof TC]]
[[Category: Ubach, J]]
[[Category: Ubach J]]
[[Category: Zhang, X]]
[[Category: Zhang X]]
[[Category: Membrane fusion]]
[[Category: Membrane protein]]
[[Category: Synaptic vesicle exocytosis]]
[[Category: Syntaxin]]
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