4aoq

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[[Image:4aoq.png|left|200px]]
 
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{{STRUCTURE_4aoq| PDB=4aoq | SCENE= }}
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==Cationic trypsin in complex with mutated Spinacia oleracea trypsin inhibitor III (SOTI-III) (F14A)==
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<StructureSection load='4aoq' size='340' side='right'caption='[[4aoq]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4aoq]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Spinacia_oleracea Spinacia oleracea]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4AOQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4AOQ FirstGlance]. <br>
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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&#8491;</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=1PE:PENTAETHYLENE+GLYCOL'>1PE</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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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=4aoq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4aoq OCA], [https://pdbe.org/4aoq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4aoq RCSB], [https://www.ebi.ac.uk/pdbsum/4aoq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4aoq ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TRY1_BOVIN TRY1_BOVIN]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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In recent decades, several canonical serine protease inhibitor families have been classified and characterized. In contrast to most trypsin inhibitors, those from garden four o'clock (Mirabilis jalapa) and spinach (Spinacia oleracea) do not share sequence similarity and have been proposed to form the new Mirabilis serine protease inhibitor family. These 30-40-amino-acid inhibitors possess a defined disulfide-bridge topology and belong to the cystine-knot miniproteins (knottins). To date, no atomic structure of this inhibitor family has been solved. Here, the first structure of S. oleracea trypsin inhibitor III (SOTI-III), in complex with bovine pancreatic trypsin, is reported. The inhibitor was synthesized by solid-phase peptide synthesis on a multi-milligram scale and was assayed to test its inhibitory activity and binding properties. The structure confirmed the proposed cystine-bridge topology. The structural features of SOTI-III suggest that it belongs to a new canonical serine protease inhibitor family with promising properties for use in protein-engineering and medical applications.
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===Cationic trypsin in complex with mutated Spinacia oleracea trypsin inhibitor III (SOTI-III) (F14A)===
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Structural characterization of Spinacia oleracea trypsin inhibitor III (SOTI-III).,Glotzbach B, Schmelz S, Reinwarth M, Christmann A, Heinz DW, Kolmar H Acta Crystallogr D Biol Crystallogr. 2013 Jan;69(Pt 1):114-20. doi:, 10.1107/S0907444912043880. Epub 2012 Dec 20. PMID:23275169<ref>PMID:23275169</ref>
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{{ABSTRACT_PUBMED_23275169}}
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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 4aoq" style="background-color:#fffaf0;"></div>
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==About this Structure==
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==See Also==
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[[4aoq]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4AOQ OCA].
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*[[Trypsin 3D structures|Trypsin 3D structures]]
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*[[Trypsin inhibitor 3D structures|Trypsin inhibitor 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Trypsin]]
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[[Category: Large Structures]]
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[[Category: Christmann, A.]]
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[[Category: Spinacia oleracea]]
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[[Category: Glotzbach, B.]]
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[[Category: Christmann A]]
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[[Category: Heinz, D W.]]
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[[Category: Glotzbach B]]
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[[Category: Kolmar, H.]]
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[[Category: Heinz DW]]
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[[Category: Reinwarth, M.]]
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[[Category: Kolmar H]]
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[[Category: Schmelz, S.]]
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[[Category: Reinwarth M]]
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[[Category: Hydrolase-inhibitor complex]]
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[[Category: Schmelz S]]
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[[Category: Knottin]]
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[[Category: Miniprotein scaffold]]
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[[Category: Serine protease inhibitor]]
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Current revision

Cationic trypsin in complex with mutated Spinacia oleracea trypsin inhibitor III (SOTI-III) (F14A)

PDB ID 4aoq

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