1y3c: Difference between revisions
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==Crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 R62A mutant== | ==Crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 R62A mutant== | ||
<StructureSection load='1y3c' size='340' side='right' caption='[[1y3c]], [[Resolution|resolution]] 1.69Å' scene=''> | <StructureSection load='1y3c' size='340' side='right'caption='[[1y3c]], [[Resolution|resolution]] 1.69Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1y3c]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_amyloliquifaciens"_(sic)_fukumoto_1943 "bacillus amyloliquifaciens" (sic) fukumoto 1943] and [http://en.wikipedia.org/wiki/Barley Barley]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y3C OCA]. For a <b>guided tour on the structure components</b> use [http:// | <table><tr><td colspan='2'>[[1y3c]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_amyloliquifaciens"_(sic)_fukumoto_1943 "bacillus amyloliquifaciens" (sic) fukumoto 1943] and [http://en.wikipedia.org/wiki/Barley Barley]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y3C OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1Y3C FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=15P:POLYETHYLENE+GLYCOL+(N=34)'>15P</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=15P:POLYETHYLENE+GLYCOL+(N=34)'>15P</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1y1k|1y1k]], [[1y33|1y33]], [[1y34|1y34]], [[1y3b|1y3b]], [[1y3d|1y3d]], [[1y3f|1y3f]], [[1y48|1y48]], [[1y4a|1y4a]], [[1y4d|1y4d]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1y1k|1y1k]], [[1y33|1y33]], [[1y34|1y34]], [[1y3b|1y3b]], [[1y3d|1y3d]], [[1y3f|1y3f]], [[1y48|1y48]], [[1y4a|1y4a]], [[1y4d|1y4d]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">apr ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1390 "Bacillus amyloliquifaciens" (sic) Fukumoto 1943])</td></tr> | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">apr ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1390 "Bacillus amyloliquifaciens" (sic) Fukumoto 1943])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Subtilisin Subtilisin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.62 3.4.21.62] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Subtilisin Subtilisin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.62 3.4.21.62] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http:// | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1y3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1y3c OCA], [http://pdbe.org/1y3c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1y3c RCSB], [http://www.ebi.ac.uk/pdbsum/1y3c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1y3c ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/y3/1y3c_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/y3/1y3c_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1y3c" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1y3c" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Chymotrypsin inhibitor 3D structures|Chymotrypsin inhibitor 3D structures]] | |||
*[[Subtilisin 3D structures|Subtilisin 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Barley]] | [[Category: Barley]] | ||
[[Category: Large Structures]] | |||
[[Category: Subtilisin]] | [[Category: Subtilisin]] | ||
[[Category: Koshland, D E]] | [[Category: Koshland, D E]] | ||
Revision as of 13:32, 6 January 2021
Crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 R62A mutantCrystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 R62A mutant
Structural highlights
Function[SUBT_BACAM] Subtilisin is an extracellular alkaline serine protease, it catalyzes the hydrolysis of proteins and peptide amides. Has a high substrate specificity to fibrin.[1] 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 PubMedA series of mutants of chymotrypsin inhibitor 2 (CI2), at residues involved in intramolecular interactions that shape and constrain the binding loop, were studied to determine their relative importance for inhibition of the serine protease subtilisin BPN', and for resistance of the inhibitor to proteolysis. These functional properties were investigated in tandem with the crystal structures of the mutant inhibitor-enzyme complexes. A dense hydrogen bonding network that supports the binding loop in the vicinity of the scissile bond was found to be important both for enzyme affinity and for stability to proteolysis. Structural analysis, in combination with biochemical measurements, allows differentiation of the structural components most important for resistance to proteolysis and/or binding. The most critical participating residues in the network were found to be Thr-58, Glu-60, Arg-65, and Gly-83. Glu-60 is more important for resistance to proteolysis than for binding, while Arg-65 and two other Arg residues play a greater role in binding than in resistance to proteolysis. Structural comparisons reveal a wide variety of subtle conformational changes in response to mutation, with built-in robustness in the hydrogen bond network, such that loss of one contact is compensated by other new contacts. Role of the intramolecular hydrogen bond network in the inhibitory power of chymotrypsin inhibitor 2.,Radisky ES, Lu CJ, Kwan G, Koshland DE Jr Biochemistry. 2005 May 10;44(18):6823-30. PMID:15865427[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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