3ru4
From Proteopedia
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==Crystal structure of the Bowman-Birk serine protease inhibitor BTCI in complex with trypsin and chymotrypsin== | ==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=''> | + | <StructureSection load='3ru4' size='340' side='right'caption='[[3ru4]], [[Resolution|resolution]] 1.68Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[3ru4]] is a 5 chain structure with sequence from [ | + | <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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><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='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> | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | |
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/TRY1_BOVIN TRY1_BOVIN] | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == 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. | 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: | + | 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> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
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==See Also== | ==See Also== | ||
| - | *[[Chymotrypsin|Chymotrypsin]] | + | *[[Chymotrypsin 3D structures|Chymotrypsin 3D structures]] |
| - | *[[Trypsin|Trypsin]] | + | *[[Trypsin 3D structures|Trypsin 3D structures]] |
| - | *[[Trypsin inhibitor|Trypsin inhibitor]] | + | *[[Trypsin inhibitor 3D structures|Trypsin inhibitor 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
[[Category: Vigna unguiculata]] | [[Category: Vigna unguiculata]] | ||
| - | [[Category: Barbosa | + | [[Category: Barbosa JARG]] |
| - | [[Category: Esteves | + | [[Category: Esteves GF]] |
| - | [[Category: Freitas | + | [[Category: Freitas SM]] |
| - | [[Category: Santos | + | [[Category: Santos CR]] |
| - | [[Category: Ventura | + | [[Category: Ventura MM]] |
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Current revision
Crystal structure of the Bowman-Birk serine protease inhibitor BTCI in complex with trypsin and chymotrypsin
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