8wbt - Revision history

OCA at 11:01, 21 February 2024

OCA — Wed, 21 Feb 2024 11:01:51 GMT

←Older revision		Revision as of 11:01, 21 February 2024
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	== Function ==		== Function ==
	[https://www.uniprot.org/uniprot/W8PFD2_KLEOX W8PFD2_KLEOX] Catalyzes the hydrolytic dehalogenation of small (S)-2-haloalkanoic acids to yield the corresponding (R)-2-hydroxyalkanoic acids.[RuleBase:RU368077]		[https://www.uniprot.org/uniprot/W8PFD2_KLEOX W8PFD2_KLEOX] Catalyzes the hydrolytic dehalogenation of small (S)-2-haloalkanoic acids to yield the corresponding (R)-2-hydroxyalkanoic acids.[RuleBase:RU368077]
-	<div style="background-color:#fffaf0;">
-	== Publication Abstract from PubMed ==
-	Microbial epoxide hydrolases, cis-Epoxysuccinate hydrolases (CESHs) have been utilized for commercial production of enantiomerically pure L(+)- and D(-)-tartaric acids for decades. However, the stereo-catalytic mechanism of CESH producing L(+)-tartaric acid (CESH[L]) remains unclear. Herein, the crystal structures of two CESH[L]s in ligand-free, product-complexed, and catalytic intermediate forms were determined. These structures revealed the unique specific binding mode for the mirror-symmetric substrate, an active catalytic triad consisting of Asp-His-Glu, and an arginine providing a proton to the oxirane oxygen to facilitate the epoxide ring-opening reaction, which has been pursued for decades. These results provide the structural basis for the rational engineering of these industrial biocatalysts.
-
-	Deciphering the stereo-specific catalytic mechanisms of cis-epoxysuccinate hydrolases producing L(+)-tartaric acid.,Dong S, Xuan J, Feng Y, Cui Q J Biol Chem. 2024 Jan 8:105635. doi: 10.1016/j.jbc.2024.105635. PMID:38199576<ref>PMID:38199576</ref>
-
-	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	</div>
-	<div class="pdbe-citations 8wbt" style="background-color:#fffaf0;"></div>
-	== References ==
-	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>

OCA at 11:48, 1 February 2024

OCA — Thu, 01 Feb 2024 11:48:32 GMT

←Older revision		Revision as of 11:48, 1 February 2024
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-	'''Unreleased structure'''

-	~~The entry~~ 8wbt is ~~ON HOLD until 2025~~-09-10	+	==Crystal structure of cis-Epoxysuccinate Hydrolases KlCESH[L] mutant D48N complexed with L-TA==
		+	<StructureSection load='8wbt' size='340' side='right'caption='[[8wbt]], [[Resolution\|resolution]] 2.05Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[8wbt]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Klebsiella_sp._BK-58 Klebsiella sp. BK-58]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8WBT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8WBT FirstGlance]. <br>
		+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 2.05Å</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=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=TLA:L(+)-TARTARIC+ACID'>TLA</scene></td></tr>
		+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8wbt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8wbt OCA], [https://pdbe.org/8wbt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8wbt RCSB], [https://www.ebi.ac.uk/pdbsum/8wbt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8wbt ProSAT]</span></td></tr>
		+	</table>
		+	== Function ==
		+	[https://www.uniprot.org/uniprot/W8PFD2_KLEOX W8PFD2_KLEOX] Catalyzes the hydrolytic dehalogenation of small (S)-2-haloalkanoic acids to yield the corresponding (R)-2-hydroxyalkanoic acids.[RuleBase:RU368077]
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Microbial epoxide hydrolases, cis-Epoxysuccinate hydrolases (CESHs) have been utilized for commercial production of enantiomerically pure L(+)- and D(-)-tartaric acids for decades. However, the stereo-catalytic mechanism of CESH producing L(+)-tartaric acid (CESH[L]) remains unclear. Herein, the crystal structures of two CESH[L]s in ligand-free, product-complexed, and catalytic intermediate forms were determined. These structures revealed the unique specific binding mode for the mirror-symmetric substrate, an active catalytic triad consisting of Asp-His-Glu, and an arginine providing a proton to the oxirane oxygen to facilitate the epoxide ring-opening reaction, which has been pursued for decades. These results provide the structural basis for the rational engineering of these industrial biocatalysts.

-	~~Authors: Dong~~, S., Xuan, J~~.S.~~, Feng, Y~~.G.~~, Cui, Q.	+	Deciphering the stereo-specific catalytic mechanisms of cis-epoxysuccinate hydrolases producing L(+)-tartaric acid.,Dong S, Xuan J, Feng Y, Cui Q J Biol Chem. 2024 Jan 8:105635. doi: 10.1016/j.jbc.2024.105635. PMID:38199576<ref>PMID:38199576</ref>

-	~~Description: Crystal structure~~ of ~~cis~~-~~Epoxysuccinate Hydrolases KlCESH~~[~~L] mutant D48N complexed with L~~-TA	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	[[Category: ~~Unreleased~~ Structures]]	+	</div>
-	[[Category: ~~Dong, S~~]]	+	<div class="pdbe-citations 8wbt" style="background-color:#fffaf0;"></div>
-	[[Category: ~~Xuan, J.~~S]]	+	== References ==
-	[[Category: ~~Cui, Q~~]]	+	<references/>
-	[[Category: ~~Feng, Y.G~~]]	+	__TOC__
		+	</StructureSection>
		+	[[Category: Klebsiella sp. BK-58]]
		+	[[Category: Large Structures]]
		+	[[Category: Cui Q]]
		+	[[Category: Dong S]]
		+	[[Category: Feng YG]]
		+	[[Category: Xuan JS]]

OCA at 08:57, 29 November 2023

OCA — Wed, 29 Nov 2023 08:57:44 GMT

←Older revision		Revision as of 08:57, 29 November 2023
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	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 8wbt is ON HOLD	+	The entry 8wbt is ON HOLD until 2025-09-10

	Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.		Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.
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	[[Category: Unreleased Structures]]		[[Category: Unreleased Structures]]
	[[Category: Dong, S]]		[[Category: Dong, S]]
-	[[Category: Cui, Q]]
	[[Category: Xuan, J.S]]		[[Category: Xuan, J.S]]
		+	[[Category: Cui, Q]]
	[[Category: Feng, Y.G]]		[[Category: Feng, Y.G]]

OCA at 05:59, 22 November 2023

OCA — Wed, 22 Nov 2023 05:59:42 GMT

←Older revision		Revision as of 05:59, 22 November 2023
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 8wbt is ON HOLD ~~until 2025-09-10~~	+	The entry 8wbt is ON HOLD

	Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.		Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.

OCA at 05:42, 15 November 2023

OCA — Wed, 15 Nov 2023 05:42:07 GMT

←Older revision		Revision as of 05:42, 15 November 2023
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 8wbt is ON HOLD	+	The entry 8wbt is ON HOLD until 2025-09-10

	Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.		Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.
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	[[Category: Unreleased Structures]]		[[Category: Unreleased Structures]]
	[[Category: Dong, S]]		[[Category: Dong, S]]
-	[[Category: Xuan, J.S]]
	[[Category: Cui, Q]]		[[Category: Cui, Q]]
		+	[[Category: Xuan, J.S]]
	[[Category: Feng, Y.G]]		[[Category: Feng, Y.G]]

OCA: Protected "8wbt" [edit=sysop:move=sysop]

OCA — Wed, 20 Sep 2023 13:02:13 GMT

Protected "8wbt" [edit=sysop:move=sysop]

←Older revision

Revision as of 13:02, 20 September 2023

OCA: New page: '''Unreleased structure''' The entry 8wbt is ON HOLD Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q. Description: Crystal structure of cis-Epoxysuccinate Hydrolases KlCESH[L] mutant...

OCA — Wed, 20 Sep 2023 13:02:12 GMT

New page: '''Unreleased structure''' The entry 8wbt is ON HOLD Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q. Description: Crystal structure of cis-Epoxysuccinate Hydrolases KlCESH[L] mutant...

New page

'''Unreleased structure'''

The entry 8wbt is ON HOLD

Authors: Dong, S., Xuan, J.S., Feng, Y.G., Cui, Q.

Description: Crystal structure of cis-Epoxysuccinate Hydrolases KlCESH[L] mutant D48N complexed with L-TA
[[Category: Unreleased Structures]]
[[Category: Dong, S]]
[[Category: Xuan, J.S]]
[[Category: Cui, Q]]
[[Category: Feng, Y.G]]