1g9i: Difference between revisions
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<StructureSection load='1g9i' size='340' side='right'caption='[[1g9i]], [[Resolution|resolution]] 2.20Å' scene=''> | <StructureSection load='1g9i' size='340' side='right'caption='[[1g9i]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1g9i]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1g9i]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G9I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1G9I 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=SO4:SULFATE+ION'>SO4</scene></td></tr> | </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=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1smf|1smf]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1smf|1smf]]</div></td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Trypsin Trypsin], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.4 3.4.21.4] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1g9i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1g9i OCA], [https://pdbe.org/1g9i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1g9i RCSB], [https://www.ebi.ac.uk/pdbsum/1g9i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1g9i ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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==See Also== | ==See Also== | ||
*[[Trypsin|Trypsin]] | *[[Trypsin 3D structures|Trypsin 3D structures]] | ||
*[[Trypsin inhibitor|Trypsin inhibitor]] | *[[Trypsin inhibitor 3D structures|Trypsin inhibitor 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 14:20, 28 July 2021
CRYSTAL STRUCTURE OF BETA-TRYSIN COMPLEX IN CYCLOHEXANECRYSTAL STRUCTURE OF BETA-TRYSIN COMPLEX IN CYCLOHEXANE
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe active trypsin inhibiting component, SPC1, was obtained during the synthesis of a 22-residue peptide with three disulfide bridges according to the mimic mung bean Bowman-Birk type inhibitor. The K(i) value of SPC1 is 1.2x10(-7) M. In order to determine the topological structure of SPC1, X-ray diffraction studies were carried out on the complex of SPC1 with bovine beta-trypsin. Only the binding loop of SPC1 resolved at 2.2 A resolution due to conformational flexibility of the other residues [1]. The amino acid sequence was re-determined and electrospray mass spectroscopy was also performed to ensure that no cleaving occurred on SPC1 and the primary sequence of SPC1 is correct. Because the protein is more rigid in nonaqueous medium as has been proved by others [2], we treated the complex of SPC1 with neat cyclohexane and then subjected it to X-ray diffraction analysis, and the result showed that all the 22 residues of SPC1 were located in the electron density map. So the topological structure of SPC1 has been determined, suggesting that crystal treatment with cyclohexane may be used as a method to determine the conformation of the disordered regions in protein crystal structures. X-Ray study on an artificial mung bean inhibitor complex with bovine beta-trypsin in neat cyclohexane.,Zhu G, Huang Q, Zhu Y, Li Y, Chi C, Tang Y Biochim Biophys Acta. 2001 Mar 9;1546(1):98-106. PMID:11257512[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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