View source for 3fv4


==Thermolysin inhibition==
<StructureSection load='3fv4' size='340' side='right'caption='[[3fv4]], [[Resolution|resolution]] 1.56&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3fv4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_thermoproteolyticus Bacillus thermoproteolyticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FV4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FV4 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=1U4:N-[(S)-({[(BENZYLOXY)CARBONYL]AMINO}METHYL)(HYDROXY)PHOSPHORYL]-L-PHENYLALANYL-L-LEUCINE'>1U4</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3elf|3elf]], [[4tmn|4tmn]], [[5tmn|5tmn]]</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Thermolysin Thermolysin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.24.27 3.4.24.27] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3fv4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fv4 OCA], [http://pdbe.org/3fv4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3fv4 RCSB], [http://www.ebi.ac.uk/pdbsum/3fv4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3fv4 ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/THER_BACTH THER_BACTH]] Extracellular zinc metalloprotease. 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fv/3fv4_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3fv4 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
BACKGROUND: Prerequisite for the design of tight binding protein inhibitors and prediction of their properties is an in-depth understanding of the structural and thermodynamic details of the binding process. A series of closely related phosphonamidates was studied to elucidate the forces underlying their binding affinity to thermolysin. The investigated inhibitors are identical except for the parts penetrating into the hydrophobic S(1)'-pocket. METHODS: A correlation of structural, kinetic and thermodynamic data was carried out by X-ray crystallography, kinetic inhibition assay and isothermal titration calorimetry. RESULTS AND CONCLUSIONS: Binding affinity increases with larger ligand hydrophobic P(1)'-moieties accommodating the S(1)'-pocket. Surprisingly, larger P(1)'-side chain modifications are accompanied by an increase in the enthalpic contribution to binding. In agreement with other studies, it is suggested that the release of largely disordered waters from an imperfectly hydrated pocket results in an enthalpically favourable integration of these water molecules into bulk water upon inhibitor binding. This enthalpically favourable process contributes more strongly to the binding energetics than the entropy increase resulting from the release of water molecules from the S(1)'-pocket or the formation of apolar interactions between protein and inhibitor. GENERAL SIGNIFICANCE: Displacement of highly disordered water molecules from a rather imperfectly hydrated and hydrophobic specificity pocket can reveal an enthalpic signature of inhibitor binding.

Displacement of disordered water molecules from hydrophobic pocket creates enthalpic signature: binding of phosphonamidate to the S(1)'-pocket of thermolysin.,Englert L, Biela A, Zayed M, Heine A, Hangauer D, Klebe G Biochim Biophys Acta. 2010 Nov;1800(11):1192-202. Epub 2010 Jul 1. PMID:20600625<ref>PMID:20600625</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3fv4" style="background-color:#fffaf0;"></div>

==See Also==
*[[Thermolysin|Thermolysin]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacillus thermoproteolyticus]]
[[Category: Large Structures]]
[[Category: Thermolysin]]
[[Category: Biela, A]]
[[Category: Englert, L]]
[[Category: Heine, A]]
[[Category: Klebe, G]]
[[Category: Hydrolase]]
[[Category: Metal-binding]]
[[Category: Metalloprotease]]
[[Category: Protease]]
[[Category: Protease phosphonamidate inhibitor]]
[[Category: Secreted]]
[[Category: Zymogen]]