3wja - Revision history

OCA at 13:12, 8 November 2023

OCA — Wed, 08 Nov 2023 13:12:45 GMT

←Older revision		Revision as of 13:12, 8 November 2023
Line 1:		Line 1:

	==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==		==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==
-	<StructureSection load='3wja' size='340' side='right'caption='[[3wja]]' scene=''>	+	<StructureSection load='3wja' size='340' side='right'caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
-	</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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>	+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 2.548Å</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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>
	</table>		</table>
		+	== Function ==
		+	[https://www.uniprot.org/uniprot/MAOX_HUMAN MAOX_HUMAN]
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Human cytosolic NADP+-dependent malic enzyme (c-NADP-ME) is neither a cooperative nor an allosteric enzyme, whereas mitochondrial NAD(P)+-dependent malic enzyme (m-NAD(P)-ME) is allosterically activated by fumarate. This study examines the molecular basis for the different allosteric properties and quaternary structural stability of m-NAD(P)-ME and c-NADP-ME. Multiple residues corresponding to the fumarate-binding site were mutated in human c-NADP-ME to correspond to those found in human m-NAD(P)-ME. Additionally, the crystal structure of the apo (ligand-free) human c-NADP-ME conformation was determined. Kinetic studies indicated no significant difference between the wild-type and mutant enzymes in Km,NADP, Km,malate, and kcat. A chimeric enzyme, [51-105]_c-NADP-ME, was designed to include the putative fumarate-binding site of m-NAD(P)-ME at the dimer interface of c-NADP-ME; however, this chimera remained nonallosteric. In addition to fumarate activation, the quaternary structural stability of c-NADP-ME and m-NAD(P)-ME is quite different; c-NADP-ME is a stable tetramer, whereas m-NAD(P)-ME exists in equilibrium between a dimer and a tetramer. The quaternary structures for the S57K/N59E/E73K/S102D and S57K/N59E/E73K/S102D/H74K/D78P/D80E/D87G mutants of c-NADP-ME are tetrameric, whereas the K57S/E59N/K73E/D102S m-NAD(P)-ME quadruple mutant is primarily monomeric with some dimer formation. These results strongly suggest that the structural features near the fumarate-binding site and the dimer interface are highly related to the quaternary structural stability of c-NADP-ME and m-NAD(P)-ME. In this study, we attempt to delineate the structural features governing the fumarate-induced allosteric activation of malic enzyme.
		+
		+	Structural characteristics of the nonallosteric human cytosolic malic enzyme.,Hsieh JY, Li SY, Chen MC, Yang PC, Chen HY, Chan NL, Liu JH, Hung HC Biochim Biophys Acta. 2014 Jul 3;1844(10):1773-1783. doi:, 10.1016/j.bbapap.2014.06.019. PMID:24998673<ref>PMID:24998673</ref>
		+
		+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>
		+	<div class="pdbe-citations 3wja" style="background-color:#fffaf0;"></div>

	==See Also==		==See Also==
	*[[NADP-dependent malic enzyme\|NADP-dependent malic enzyme]]		*[[NADP-dependent malic enzyme\|NADP-dependent malic enzyme]]
		+	== References ==
		+	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Homo sapiens]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
	[[Category: Chan N-L]]		[[Category: Chan N-L]]

OCA at 10:32, 31 August 2022

OCA — Wed, 31 Aug 2022 10:32:54 GMT

←Older revision		Revision as of 10:32, 31 August 2022
Line 1:		Line 1:

	==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==		==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==
-	<StructureSection load='3wja' size='340' side='right'caption='[[3wja]]~~, [[Resolution\|resolution]] 2.55Å~~' scene=''>	+	<StructureSection load='3wja' size='340' side='right'caption='[[3wja]]' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>~~[[3wja]] is a 2 chain structure.~~ Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>	+	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
-	</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>	+	</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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>	+
	</table>		</table>
-	<div style="background-color:#fffaf0;">
-	== Publication Abstract from PubMed ==
-	Human cytosolic NADP+-dependent malic enzyme (c-NADP-ME) is neither a cooperative nor an allosteric enzyme, whereas mitochondrial NAD(P)+-dependent malic enzyme (m-NAD(P)-ME) is allosterically activated by fumarate. This study examines the molecular basis for the different allosteric properties and quaternary structural stability of m-NAD(P)-ME and c-NADP-ME. Multiple residues corresponding to the fumarate-binding site were mutated in human c-NADP-ME to correspond to those found in human m-NAD(P)-ME. Additionally, the crystal structure of the apo (ligand-free) human c-NADP-ME conformation was determined. Kinetic studies indicated no significant difference between the wild-type and mutant enzymes in Km,NADP, Km,malate, and kcat. A chimeric enzyme, [51-105]_c-NADP-ME, was designed to include the putative fumarate-binding site of m-NAD(P)-ME at the dimer interface of c-NADP-ME; however, this chimera remained nonallosteric. In addition to fumarate activation, the quaternary structural stability of c-NADP-ME and m-NAD(P)-ME is quite different; c-NADP-ME is a stable tetramer, whereas m-NAD(P)-ME exists in equilibrium between a dimer and a tetramer. The quaternary structures for the S57K/N59E/E73K/S102D and S57K/N59E/E73K/S102D/H74K/D78P/D80E/D87G mutants of c-NADP-ME are tetrameric, whereas the K57S/E59N/K73E/D102S m-NAD(P)-ME quadruple mutant is primarily monomeric with some dimer formation. These results strongly suggest that the structural features near the fumarate-binding site and the dimer interface are highly related to the quaternary structural stability of c-NADP-ME and m-NAD(P)-ME. In this study, we attempt to delineate the structural features governing the fumarate-induced allosteric activation of malic enzyme.
-
-	Structural characteristics of the nonallosteric human cytosolic malic enzyme.,Hsieh JY, Li SY, Chen MC, Yang PC, Chen HY, Chan NL, Liu JH, Hung HC Biochim Biophys Acta. 2014 Jul 3;1844(10):1773-1783. doi:, 10.1016/j.bbapap.2014.06.019. PMID:24998673<ref>PMID:24998673</ref>
-
-	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	</div>
-	<div class="pdbe-citations 3wja" style="background-color:#fffaf0;"></div>

	==See Also==		==See Also==
	*[[NADP-dependent malic enzyme\|NADP-dependent malic enzyme]]		*[[NADP-dependent malic enzyme\|NADP-dependent malic enzyme]]
-	== References ==
-	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Chan, N L]]	+	[[Category: Chan N-L]]
-	[[Category: Chen, M C]]	+	[[Category: Chen M-C]]
-	[[Category: Hung, H C]]	+	[[Category: Hung H-C]]
-	[[Category: Li, S Y]]	+	[[Category: Li S-Y]]
-	[[Category: Liu, J H]]	+	[[Category: Liu J-H]]
-	[[Category: Yang, P C]]	+	[[Category: Yang P-C]]
-	~~[[Category: Metal ion binding]]~~	+
-	~~[[Category: Oxidoreductase]]~~	+
-	~~[[Category: Oxidoreductase activity~~]]	+

OCA at 04:58, 25 August 2022

OCA — Thu, 25 Aug 2022 04:58:01 GMT

←Older revision		Revision as of 04:58, 25 August 2022
Line 3:		Line 3:
	<StructureSection load='3wja' size='340' side='right'caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>		<StructureSection load='3wja' size='340' side='right'caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure ~~with sequence from [https://en.wikipedia.org/wiki/Human Human]~~. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
-	</td></tr>~~<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ME1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>~~	+	</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>
	</table>		</table>
Line 24:		Line 23:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: Human]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
	[[Category: Chan, N L]]		[[Category: Chan, N L]]

OCA at 05:38, 3 August 2022

OCA — Wed, 03 Aug 2022 05:38:32 GMT

←Older revision		Revision as of 05:38, 3 August 2022
Line 1:		Line 1:

	==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==		==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==
-	<StructureSection load='3wja' size='340' side='right' caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>	+	<StructureSection load='3wja' size='340' side='right'caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=3WJA FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
-	</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ME1 ([~~http~~://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>	+	</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ME1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [~~http~~://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [~~http~~://pdbe.org/3wja PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/3wja PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [https://pdbe.org/3wja PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [https://www.ebi.ac.uk/pdbsum/3wja PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>
	</table>		</table>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
Line 25:		Line 25:
	</StructureSection>		</StructureSection>
	[[Category: Human]]		[[Category: Human]]
		+	[[Category: Large Structures]]
	[[Category: Chan, N L]]		[[Category: Chan, N L]]
	[[Category: Chen, M C]]		[[Category: Chen, M C]]

OCA at 09:13, 21 February 2019

OCA — Thu, 21 Feb 2019 09:13:15 GMT

←Older revision		Revision as of 09:13, 21 February 2019
Line 3:		Line 3:
	<StructureSection load='3wja' size='340' side='right' caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>		<StructureSection load='3wja' size='340' side='right' caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
-	</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>	+	</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ME1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
		+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://pdbe.org/3wja PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://pdbe.org/3wja PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>
	</table>		</table>
Line 23:		Line 24:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Human]]
	[[Category: Chan, N L]]		[[Category: Chan, N L]]
	[[Category: Chen, M C]]		[[Category: Chen, M C]]

OCA at 17:55, 11 August 2016

OCA — Thu, 11 Aug 2016 17:55:50 GMT

←Older revision		Revision as of 17:55, 11 August 2016
Line 1:		Line 1:
		+
	==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==		==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==
	<StructureSection load='3wja' size='340' side='right' caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>		<StructureSection load='3wja' size='340' side='right' caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>
Line 4:		Line 5:
	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>		<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
	</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>		</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja 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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://pdbe.org/3wja PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3wja ProSAT]</span></td></tr>
	</table>		</table>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
Line 14:		Line 15:
	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	</div>		</div>
		+	<div class="pdbe-citations 3wja" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[NADP-dependent malic enzyme\|NADP-dependent malic enzyme]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 14:28, 5 January 2015

OCA — Mon, 05 Jan 2015 14:28:32 GMT

←Older revision		Revision as of 14:28, 5 January 2015
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>		<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>	+	</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>
-	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja 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=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja PDBsum]</span></td></tr>
-	<table>	+	</table>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 18:		Line 18:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: Chan, N L.]]	+	[[Category: Chan, N L]]
-	[[Category: Chen, M C.]]	+	[[Category: Chen, M C]]
-	[[Category: Hung, H C.]]	+	[[Category: Hung, H C]]
-	[[Category: Li, S Y.]]	+	[[Category: Li, S Y]]
-	[[Category: Liu, J H.]]	+	[[Category: Liu, J H]]
-	[[Category: Yang, P C.]]	+	[[Category: Yang, P C]]
	[[Category: Metal ion binding]]		[[Category: Metal ion binding]]
	[[Category: Oxidoreductase]]		[[Category: Oxidoreductase]]
	[[Category: Oxidoreductase activity]]		[[Category: Oxidoreductase activity]]

OCA at 09:01, 13 August 2014

OCA — Wed, 13 Aug 2014 09:01:11 GMT

←Older revision		Revision as of 09:01, 13 August 2014
Line 1:		Line 1:
-	'''~~Unreleased~~ structure'''	+	==The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form==
		+	<StructureSection load='3wja' size='340' side='right' caption='[[3wja]], [[Resolution\|resolution]] 2.55Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[3wja]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WJA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WJA FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Malate_dehydrogenase_(oxaloacetate-decarboxylating)_(NADP(+)) Malate dehydrogenase (oxaloacetate-decarboxylating) (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.40 1.1.1.40] </span></td></tr>
		+	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3wja FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wja OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wja RCSB], [http://www.ebi.ac.uk/pdbsum/3wja PDBsum]</span></td></tr>
		+	<table>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Human cytosolic NADP+-dependent malic enzyme (c-NADP-ME) is neither a cooperative nor an allosteric enzyme, whereas mitochondrial NAD(P)+-dependent malic enzyme (m-NAD(P)-ME) is allosterically activated by fumarate. This study examines the molecular basis for the different allosteric properties and quaternary structural stability of m-NAD(P)-ME and c-NADP-ME. Multiple residues corresponding to the fumarate-binding site were mutated in human c-NADP-ME to correspond to those found in human m-NAD(P)-ME. Additionally, the crystal structure of the apo (ligand-free) human c-NADP-ME conformation was determined. Kinetic studies indicated no significant difference between the wild-type and mutant enzymes in Km,NADP, Km,malate, and kcat. A chimeric enzyme, [51-105]_c-NADP-ME, was designed to include the putative fumarate-binding site of m-NAD(P)-ME at the dimer interface of c-NADP-ME; however, this chimera remained nonallosteric. In addition to fumarate activation, the quaternary structural stability of c-NADP-ME and m-NAD(P)-ME is quite different; c-NADP-ME is a stable tetramer, whereas m-NAD(P)-ME exists in equilibrium between a dimer and a tetramer. The quaternary structures for the S57K/N59E/E73K/S102D and S57K/N59E/E73K/S102D/H74K/D78P/D80E/D87G mutants of c-NADP-ME are tetrameric, whereas the K57S/E59N/K73E/D102S m-NAD(P)-ME quadruple mutant is primarily monomeric with some dimer formation. These results strongly suggest that the structural features near the fumarate-binding site and the dimer interface are highly related to the quaternary structural stability of c-NADP-ME and m-NAD(P)-ME. In this study, we attempt to delineate the structural features governing the fumarate-induced allosteric activation of malic enzyme.

-	~~The entry 3wja is ON HOLD until Paper Publication~~	+	Structural characteristics of the nonallosteric human cytosolic malic enzyme.,Hsieh JY, Li SY, Chen MC, Yang PC, Chen HY, Chan NL, Liu JH, Hung HC Biochim Biophys Acta. 2014 Jul 3;1844(10):1773-1783. doi:, 10.1016/j.bbapap.2014.06.019. PMID:24998673<ref>PMID:24998673</ref>

-	~~Authors: Li~~, S.-Y., Chen, M.-C., ~~Yang, P.-~~C., ~~Chan, N~~.~~-L.,~~ Liu, J.-H., ~~Hung, H.-~~C.	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-	~~Description~~: ~~The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form~~	+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Chan, N L.]]
		+	[[Category: Chen, M C.]]
		+	[[Category: Hung, H C.]]
		+	[[Category: Li, S Y.]]
		+	[[Category: Liu, J H.]]
		+	[[Category: Yang, P C.]]
		+	[[Category: Metal ion binding]]
		+	[[Category: Oxidoreductase]]
		+	[[Category: Oxidoreductase activity]]

OCA at 12:31, 20 November 2013

OCA — Wed, 20 Nov 2013 12:31:59 GMT

←Older revision		Revision as of 12:31, 20 November 2013
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 3wja is ON HOLD	+	The entry 3wja is ON HOLD until Paper Publication

	Authors: Li, S.-Y., Chen, M.-C., Yang, P.-C., Chan, N.-L., Liu, J.-H., Hung, H.-C.		Authors: Li, S.-Y., Chen, M.-C., Yang, P.-C., Chan, N.-L., Liu, J.-H., Hung, H.-C.

	Description: The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form		Description: The crystal structure of human cytosolic NADP(+)-dependent malic enzyme in apo form

OCA: Protected "3wja" [edit=sysop:move=sysop]

OCA — Wed, 16 Oct 2013 07:05:20 GMT

Protected "3wja" [edit=sysop:move=sysop]

←Older revision

Revision as of 07:05, 16 October 2013