2qtv

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<StructureSection load='2qtv' size='340' side='right'caption='[[2qtv]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='2qtv' size='340' side='right'caption='[[2qtv]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2qtv]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QTV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QTV FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2qtv]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QTV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QTV FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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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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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SEC23 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SAR1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SEC31, WEB1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=2qtv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qtv OCA], [https://pdbe.org/2qtv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qtv RCSB], [https://www.ebi.ac.uk/pdbsum/2qtv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qtv ProSAT]</span></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=2qtv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qtv OCA], [https://pdbe.org/2qtv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qtv RCSB], [https://www.ebi.ac.uk/pdbsum/2qtv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qtv ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[https://www.uniprot.org/uniprot/SEC23_YEAST SEC23_YEAST]] Component of the coat protein complex II (COPII) which promotes the formation of transport vesicles from the endoplasmic reticulum (ER). The coat has two main functions, the physical deformation of the endoplasmic reticulum membrane into vesicles and the selection of cargo molecules. SEC23 interacts with BET3 in order to target TRAPPI complex to COPII involved in internalisation of plasma membrane proteins like the maltose transporter.<ref>PMID:2670558</ref> <ref>PMID:6996832</ref> <ref>PMID:7026045</ref> <ref>PMID:3293799</ref> <ref>PMID:3049622</ref> <ref>PMID:2188733</ref> <ref>PMID:1498369</ref> <ref>PMID:7925484</ref> <ref>PMID:8451644</ref> <ref>PMID:8548805</ref> <ref>PMID:8909535</ref> <ref>PMID:9427388</ref> <ref>PMID:9023343</ref> <ref>PMID:9624457</ref> <ref>PMID:9428766</ref> <ref>PMID:10198022</ref> <ref>PMID:11086000</ref> <ref>PMID:10720463</ref> <ref>PMID:12941276</ref> <ref>PMID:14627716</ref> <ref>PMID:16269340</ref> <ref>PMID:17287728</ref> [[https://www.uniprot.org/uniprot/SEC31_YEAST SEC31_YEAST]] Component of the coat protein complex II (COPII) which promotes the formation of transport vesicles from the endoplasmic reticulum (ER). The coat has two main functions, the physical deformation of the endoplasmic reticulum membrane into vesicles and the selection of cargo molecules.<ref>PMID:8548805</ref> <ref>PMID:8852839</ref> <ref>PMID:9190202</ref> <ref>PMID:9023343</ref> <ref>PMID:10720463</ref> <ref>PMID:14627716</ref> [[https://www.uniprot.org/uniprot/SAR1_YEAST SAR1_YEAST]] Small GTPase component of the coat protein complex II (COPII) which promotes the formation of transport vesicles from the endoplasmic reticulum (ER). The coat has two main functions, the physical deformation of the endoplasmic reticulum membrane into vesicles and the selection of cargo molecules. SAR1 controls the coat assembly in a stepwise manner. Activated SAR1-GTP by SEC12 binds to membranes first and recruits the SEC23/24 complex. These SEC23/24-SAR1 prebudding intermediates are then collected by the SEC13/31 complex as subunits polymerize to form coated transport vesicles. Conversion to SAR1-GDP triggers coat release and recycles COPII subunits.<ref>PMID:2512296</ref> <ref>PMID:1907973</ref> <ref>PMID:1907974</ref> <ref>PMID:8106544</ref> <ref>PMID:8548805</ref> <ref>PMID:8530490</ref> <ref>PMID:9023343</ref> <ref>PMID:9756629</ref> <ref>PMID:9428766</ref> <ref>PMID:10720463</ref> <ref>PMID:11389436</ref> <ref>PMID:12912905</ref> <ref>PMID:14627716</ref> <ref>PMID:15665868</ref>
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[https://www.uniprot.org/uniprot/SEC23_YEAST SEC23_YEAST] Component of the coat protein complex II (COPII) which promotes the formation of transport vesicles from the endoplasmic reticulum (ER). The coat has two main functions, the physical deformation of the endoplasmic reticulum membrane into vesicles and the selection of cargo molecules. SEC23 interacts with BET3 in order to target TRAPPI complex to COPII involved in internalisation of plasma membrane proteins like the maltose transporter.<ref>PMID:2670558</ref> <ref>PMID:6996832</ref> <ref>PMID:7026045</ref> <ref>PMID:3293799</ref> <ref>PMID:3049622</ref> <ref>PMID:2188733</ref> <ref>PMID:1498369</ref> <ref>PMID:7925484</ref> <ref>PMID:8451644</ref> <ref>PMID:8548805</ref> <ref>PMID:8909535</ref> <ref>PMID:9427388</ref> <ref>PMID:9023343</ref> <ref>PMID:9624457</ref> <ref>PMID:9428766</ref> <ref>PMID:10198022</ref> <ref>PMID:11086000</ref> <ref>PMID:10720463</ref> <ref>PMID:12941276</ref> <ref>PMID:14627716</ref> <ref>PMID:16269340</ref> <ref>PMID:17287728</ref>
== 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=2qtv 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=2qtv ConSurf].
<div style="clear:both"></div>
<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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The COPII vesicular coat forms on the endoplasmic reticulum from Sar1-GTP, Sec23/24 and Sec13/31 protein subunits. Here, we define the interaction between Sec23/24.Sar1 and Sec13/31, involving a 40 residue Sec31 fragment. In the crystal structure of the ternary complex, Sec31 binds as an extended polypeptide across a composite surface of the Sec23 and Sar1-GTP molecules, explaining the stepwise character of Sec23/24.Sar1 and Sec13/31 recruitment to the membrane. The Sec31 fragment stimulates GAP activity of Sec23/24, and a convergence of Sec31 and Sec23 residues at the Sar1 GTPase active site explains how GTP hydrolysis is triggered leading to COPII coat disassembly. The Sec31 active fragment is accommodated in a binding groove supported in part by Sec23 residue Phe380. Substitution of the corresponding residue F382L in human Sec23A causes cranio-lenticulo-sutural dysplasia, and we suggest that this mutation disrupts the nucleation of COPII coat proteins at endoplasmic reticulum exit sites.
 
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Insights into COPII coat nucleation from the structure of Sec23.Sar1 complexed with the active fragment of Sec31.,Bi X, Mancias JD, Goldberg J Dev Cell. 2007 Nov;13(5):635-45. PMID:17981133<ref>PMID:17981133</ref>
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==See Also==
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*[[GTP-binding protein 3D structures|GTP-binding protein 3D structures]]
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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 2qtv" style="background-color:#fffaf0;"></div>
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== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Atcc 18824]]
 
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Bi, X]]
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[[Category: Saccharomyces cerevisiae]]
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[[Category: Goldberg, J]]
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[[Category: Bi X]]
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[[Category: Mancias, J D]]
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[[Category: Goldberg J]]
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[[Category: Copii coat]]
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[[Category: Mancias JD]]
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[[Category: Cytoplasm]]
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[[Category: Cytoplasmic vesicle]]
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[[Category: Endoplasmic reticulum]]
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[[Category: Er-golgi transport]]
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[[Category: Golgi apparatus]]
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[[Category: Gtp-binding]]
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[[Category: Hydrolase]]
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[[Category: Membrane]]
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[[Category: Metal-binding]]
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[[Category: Nucleotide-binding]]
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[[Category: Phosphorylation]]
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[[Category: Protein transport]]
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[[Category: Ubl conjugation]]
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[[Category: Vesicular transport]]
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[[Category: Wd repeat]]
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[[Category: Zinc]]
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Current revision

Structure of Sec23-Sar1 complexed with the active fragment of Sec31

PDB ID 2qtv

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