3fbw: Difference between revisions
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[[Image: | ==Structure of Rhodococcus rhodochrous haloalkane dehalogenase DhaA mutant C176Y== | ||
<StructureSection load='3fbw' size='340' side='right' caption='[[3fbw]], [[Resolution|resolution]] 1.23Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3fbw]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rhodococcus_rhodochrous Rhodococcus rhodochrous]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FBW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FBW FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BEZ:BENZOIC+ACID'>BEZ</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3g9x|3g9x]], [[3fwh|3fwh]]</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dhaA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1829 Rhodococcus rhodochrous])</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Haloalkane_dehalogenase Haloalkane dehalogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.8.1.5 3.8.1.5] </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=3fbw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fbw OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3fbw RCSB], [http://www.ebi.ac.uk/pdbsum/3fbw PDBsum]</span></td></tr> | |||
</table> | |||
== 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/fb/3fbw_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/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The haloalkane dehalogenase DhaA from Rhodococcus rhodochrous NCIMB 13064 is a bacterial enzyme that shows catalytic activity for the hydrolytic degradation of the highly toxic industrial pollutant 1,2,3-trichloropropane (TCP). Mutagenesis focused on the access tunnels of DhaA produced protein variants with significantly improved activity towards TCP. Three mutants of DhaA named DhaA04 (C176Y), DhaA14 (I135F) and DhaA15 (C176Y + I135F) were constructed in order to study the functional relevance of the tunnels connecting the buried active site of the protein with the surrounding solvent. All three protein variants were crystallized using the sitting-drop vapour-diffusion technique. The crystals of DhaA04 belonged to the orthorhombic space group P2(1)2(1)2(1), while the crystals of DhaA14 and DhaA15 had triclinic symmetry in space group P1. The crystal structures of DhaA04, DhaA14 and DhaA15 with ligands present in the active site were solved and refined using diffraction data to 1.23, 0.95 and 1.22 A, resolution, respectively. Structural comparisons of the wild type and the three mutants suggest that the tunnels play a key role in the processes of ligand exchange between the buried active site and the surrounding solvent. | |||
Atomic resolution studies of haloalkane dehalogenases DhaA04, DhaA14 and DhaA15 with engineered access tunnels.,Stsiapanava A, Dohnalek J, Gavira JA, Kuty M, Koudelakova T, Damborsky J, Kuta Smatanova I Acta Crystallogr D Biol Crystallogr. 2010 Sep;66(Pt 9):962-9. Epub 2010, Aug 13. PMID:20823547<ref>PMID:20823547</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | |||
*[[Dehalogenase|Dehalogenase]] | |||
== | == References == | ||
[[ | <references/> | ||
__TOC__ | |||
== | </StructureSection> | ||
< | |||
[[Category: Haloalkane dehalogenase]] | [[Category: Haloalkane dehalogenase]] | ||
[[Category: Rhodococcus rhodochrous]] | [[Category: Rhodococcus rhodochrous]] | ||
[[Category: Dohnalek, J | [[Category: Dohnalek, J]] | ||
[[Category: Gavira, J A | [[Category: Gavira, J A]] | ||
[[Category: Kuty, M | [[Category: Kuty, M]] | ||
[[Category: Smatanova, I Kuta | [[Category: Smatanova, I Kuta]] | ||
[[Category: Stsiapanava, A | [[Category: Stsiapanava, A]] | ||
[[Category: Alpha/beta-hydrolase]] | [[Category: Alpha/beta-hydrolase]] | ||
[[Category: Catalytic triad]] | [[Category: Catalytic triad]] | ||