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==The structure of Sac-KARI protein==
==The structure of Sac-KARI protein==
<StructureSection load='5yeq' size='340' side='right' caption='[[5yeq]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
<StructureSection load='5yeq' size='340' side='right'caption='[[5yeq]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[5yeq]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5YEQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5YEQ FirstGlance]. <br>
<table><tr><td colspan='2'>[[5yeq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Sulfolobus_acidocaldarius Sulfolobus acidocaldarius]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5YEQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5YEQ FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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]] 1.75&#8491;</td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ketol-acid_reductoisomerase Ketol-acid reductoisomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.86 1.1.1.86] </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=5yeq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5yeq OCA], [https://pdbe.org/5yeq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5yeq RCSB], [https://www.ebi.ac.uk/pdbsum/5yeq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5yeq 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=5yeq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5yeq OCA], [http://pdbe.org/5yeq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5yeq RCSB], [http://www.ebi.ac.uk/pdbsum/5yeq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5yeq ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/A0A0U3H6N8_9CREN A0A0U3H6N8_9CREN]] Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol-acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3-dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3-hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate.[HAMAP-Rule:MF_00435]  
[https://www.uniprot.org/uniprot/ILVC_SULAC ILVC_SULAC] Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol-acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3-dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3-hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate.[HAMAP-Rule:MF_00435]
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 5yeq" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 5yeq" style="background-color:#fffaf0;"></div>
==See Also==
*[[Ketol-acid reductoisomerase 3D structures|Ketol-acid reductoisomerase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Ketol-acid reductoisomerase]]
[[Category: Large Structures]]
[[Category: Chen, C Y]]
[[Category: Sulfolobus acidocaldarius]]
[[Category: Chiang, C H]]
[[Category: Chen CY]]
[[Category: Horng, J C]]
[[Category: Chiang CH]]
[[Category: Huang, C H]]
[[Category: Horng JC]]
[[Category: Ko, T P]]
[[Category: Huang CH]]
[[Category: Lin, B L]]
[[Category: Ko TP]]
[[Category: Lin, K F]]
[[Category: Lin BL]]
[[Category: Tsai, M D]]
[[Category: Lin KF]]
[[Category: Acid tolerant enzyme]]
[[Category: Tsai MD]]
[[Category: Ahir]]
[[Category: Bcaa]]
[[Category: Biofuel]]
[[Category: Branched-chain amino acid]]
[[Category: Isomerase]]
[[Category: Knot domain]]
[[Category: Metal ion cofactor]]
[[Category: Nadh]]
[[Category: Nadph]]
[[Category: Reductase]]
Retrieved from "https://proteopedia.org/5yeq"