3ida

From Proteopedia

(Difference between revisions)

Revision as of 11:51, 5 August 2016

Thermostable Cocaine Esterase with mutations L169K and G173Q, bound to DTT adduct

Structural highlights

3ida is a 1 chain structure with sequence from Corynebacterium sp. atcc 49955. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	3i2k, 3i2j, 3i2i, 3i2g
Gene:	cocE (Corynebacterium sp. ATCC 49955)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[COCE_RHOSM] Hydrolyzes cocaine to benzoate and ecgonine methyl ester, endowing the bacteria with the ability to utilize cocaine as a sole source of carbon and energy for growth, as this bacterium lives in the rhizosphere of coca plants. Also efficiently hydrolyzes cocaethylene, a more potent cocaine metabolite that has been observed in patients who concurrently abuse cocaine and alcohol. Is able to prevent cocaine-induced convulsions and lethality in rat.^[1] ^[2] ^[3]

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 PubMed

Rhodococcal cocaine esterase (CocE) is an attractive potential treatment for both cocaine overdose and cocaine addiction. CocE directly degrades cocaine into inactive products, whereas traditional small-molecule approaches require blockade of the inhibitory action of cocaine on a diverse array of monoamine transporters and ion channels. The usefulness of wild-type (wt) cocaine esterase is hampered by its inactivation at 37 degrees C. Herein, we characterize the most thermostable form of this enzyme to date, CocE-L169K/G173Q. In vitro kinetic analyses reveal that CocE-L169K/G173Q displays a half-life of 2.9 days at 37 degrees C, which represents a 340-fold improvement over wt and is 15-fold greater than previously reported mutants. Crystallographic analyses of CocE-L169K/G173Q, determined at 1.6-A resolution, suggest that stabilization involves enhanced domain-domain interactions involving van der Waals interactions and hydrogen bonding. In vivo rodent studies reveal that intravenous pretreatment with CocE-L169K/G173Q in mice provides protection from cocaine-induced lethality for longer time periods before cocaine administration than wt CocE. Furthermore, intravenous administration (pretreatment) of CocE-L169K/G173Q prevents self-administration of cocaine in a time-dependent manner. Termination of the in vivo effects of CoCE seems to be dependent on, but not proportional to, its clearance from plasma as its half-life is approximately 2.3 h and similar to that of wt CocE (2.2 h). Taken together these data suggest that CocE-L169K/G173Q possesses many of the properties of a biological therapeutic for treating cocaine abuse but requires additional development to improve its serum half-life.

A thermally stable form of bacterial cocaine esterase: a potential therapeutic agent for treatment of cocaine abuse.,Brim RL, Nance MR, Youngstrom DW, Narasimhan D, Zhan CG, Tesmer JJ, Sunahara RK, Woods JH Mol Pharmacol. 2010 Apr;77(4):593-600. Epub 2010 Jan 19. PMID:20086035^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Bresler MM, Rosser SJ, Basran A, Bruce NC. Gene cloning and nucleotide sequencing and properties of a cocaine esterase from Rhodococcus sp. strain MB1. Appl Environ Microbiol. 2000 Mar;66(3):904-8. PMID:10698749
↑ Cooper ZD, Narasimhan D, Sunahara RK, Mierzejewski P, Jutkiewicz EM, Larsen NA, Wilson IA, Landry DW, Woods JH. Rapid and robust protection against cocaine-induced lethality in rats by the bacterial cocaine esterase. Mol Pharmacol. 2006 Dec;70(6):1885-91. Epub 2006 Sep 12. PMID:16968810 doi:10.1124/mol.106.025999
↑ Turner JM, Larsen NA, Basran A, Barbas CF 3rd, Bruce NC, Wilson IA, Lerner RA. Biochemical characterization and structural analysis of a highly proficient cocaine esterase. Biochemistry. 2002 Oct 15;41(41):12297-307. PMID:12369817
↑ Brim RL, Nance MR, Youngstrom DW, Narasimhan D, Zhan CG, Tesmer JJ, Sunahara RK, Woods JH. A thermally stable form of bacterial cocaine esterase: a potential therapeutic agent for treatment of cocaine abuse. Mol Pharmacol. 2010 Apr;77(4):593-600. Epub 2010 Jan 19. PMID:20086035 doi:10.1124/mol.109.060806

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3ida"

@@ Line 1: / Line 1: @@
 ==Thermostable Cocaine Esterase with mutations L169K and G173Q, bound to DTT adduct==
 <StructureSection load='3ida' size='340' side='right' caption='[[3ida]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3ida]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rhodococcus_sp. Rhodococcus sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IDA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3IDA FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3ida]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Corynebacterium_sp._atcc_49955 Corynebacterium sp. atcc 49955]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IDA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3IDA FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=DBC:(4S,5S)-4,5-BIS(MERCAPTOMETHYL)-1,3-DIOXOLAN-2-OL'>DBC</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3i2k|3i2k]], [[3i2j|3i2j]], [[3i2i|3i2i]], [[3i2g|3i2g]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cocE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1831 Rhodococcus sp.])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cocE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=51612 Corynebacterium sp. ATCC 49955])</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=3ida FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ida OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ida RCSB], [http://www.ebi.ac.uk/pdbsum/3ida PDBsum]</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=3ida FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ida OCA], [http://pdbe.org/3ida PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3ida RCSB], [http://www.ebi.ac.uk/pdbsum/3ida PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3ida ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
     <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].
+</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=3ida ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 28: / Line 29: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3ida" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 35: / Line 37: @@
 __TOC__
 </StructureSection>
-[[Category: Rhodococcus sp]]
+[[Category: Corynebacterium sp. atcc 49955]]
 [[Category: Nance, M R]]
 [[Category: Tesmer, J J.G]]

3ida

From Proteopedia

Revision as of 11:51, 5 August 2016

Thermostable Cocaine Esterase with mutations L169K and G173Q, bound to DTT adduct

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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