3ru4: Difference between revisions
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==Crystal structure of the Bowman-Birk serine protease inhibitor BTCI in complex with trypsin and chymotrypsin== | |||
<StructureSection load='3ru4' size='340' side='right'caption='[[3ru4]], [[Resolution|resolution]] 1.68Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3ru4]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Vigna_unguiculata Vigna unguiculata]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RU4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RU4 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.68Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MRD:(4R)-2-METHYLPENTANE-2,4-DIOL'>MRD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=3ru4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ru4 OCA], [https://pdbe.org/3ru4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ru4 RCSB], [https://www.ebi.ac.uk/pdbsum/3ru4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ru4 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/TRY1_BOVIN TRY1_BOVIN] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
A ternary complex of the black-eyed pea trypsin and chymotrypsin inhibitor (BTCI) with trypsin and chymotrypsin was crystallized by the sitting-drop vapour-diffusion method with 0.1 M HEPES pH 7.5, 10%(w/v) polyethylene glycol 6000 and 5%(v/v) 2-methyl-2,4-pentanediol as precipitant. BTCI is a small protein with 83 amino-acid residues isolated from Vigna unguiculata seeds and is able to inhibit trypsin and chymotrypsin simultaneously by forming a stable ternary complex. X-ray data were collected from a single crystal of the trypsin-BTCI-chymotrypsin ternary complex to 2.7 A resolution under cryogenic conditions. The structure of the ternary complex was solved by molecular replacement using the crystal structures of the BTCI-trypsin binary complex (PDB code 2g81) and chymotrypsin (PDB code 4cha) as search models. | |||
Crystallization, data collection and processing of the chymotrypsin-BTCI-trypsin ternary complex.,Esteves GF, Teles RC, Cavalcante NS, Neves D, Ventura MM, Barbosa JA, de Freitas SM Acta Crystallogr Sect F Struct Biol Cryst Commun. 2007 Dec 1;63(Pt 12):1087-90., Epub 2007 Nov 30. PMID:018084102<ref>PMID:018084102</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3ru4" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Chymotrypsin 3D structures|Chymotrypsin 3D structures]] | |||
*[[Trypsin 3D structures|Trypsin 3D structures]] | |||
*[[Trypsin inhibitor 3D structures|Trypsin inhibitor 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Bos taurus]] | |||
[[Category: Large Structures]] | |||
[[Category: Vigna unguiculata]] | |||
[[Category: Barbosa JARG]] | |||
[[Category: Esteves GF]] | |||
[[Category: Freitas SM]] | |||
[[Category: Santos CR]] | |||
[[Category: Ventura MM]] | |||
