3a14

<table><tr><td colspan='2'>[[3a14]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_43589 Atcc 43589]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A14 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3A14 FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/1-deoxy-D-xylulose-5-phosphate_reductoisomerase 1-deoxy-D-xylulose-5-phosphate reductoisomerase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.267 1.1.1.267] </span></td></tr>

[[https://www.uniprot.org/uniprot/DXR_THEMA DXR_THEMA]] Catalyzes the NADP-dependent rearrangement and reduction of 1-deoxy-D-xylulose-5-phosphate (DXP) to 2-C-methyl-D-erythritol 4-phosphate (MEP).

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== Publication Abstract from PubMed ==

Isopentenyl diphosphate is a precursor of various isoprenoids and is produced by the 2-C-methyl-d-erythritol 4-phosphate (MEP) pathway in plastids of plants, protozoa and many eubacteria. A key enzyme in the MEP pathway, 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR), has been shown to be the target of fosmidomycin, which works as an antimalarial, antibacterial and herbicidal compound. In this paper, we report studies of kinetics and the crystal structures of the thermostable DXR from the hyperthermophile Thermotoga maritima. Unlike the mesophilic DXRs, Thermotoga DXR (tDXR) showed activity only with Mg(2+) at its growth temperature. We solved the crystal structures of tDXR with and without fosmidomycin. The structure without fosmidomycin but unexpectedly bound with 2-methyl-2,4-pentanediol (MPD), revealing a new extra space available for potential drug design. This structure adopted the closed form by rigid domain rotation but without the flexible loop over the active site, which was considered as a novel conformation. Further, the conserved Asp residue responsible for cation binding seemed to play an important role in adjusting the position of fosmidomycin. Taken together, our kinetic and the crystal structures illustrate the binding mode of fosmidomycin that leads to its slow, tight binding according to the conformational changes of DXR.

Crystal structure of 1-deoxy-d-xylulose 5-phosphate reductoisomerase from the hyperthermophile Thermotoga maritima for insights into the coordination of conformational changes and an inhibitor binding.,Takenoya M, Ohtaki A, Noguchi K, Endo K, Sasaki Y, Ohsawa K, Yajima S, Yohda M J Struct Biol. 2010 Jun;170(3):532-9. Epub 2010 Mar 29. PMID:20353826<ref>PMID:20353826</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 3a14" style="background-color:#fffaf0;"></div>

*[[DXP reductoisomerase|DXP reductoisomerase]]

[[Category: 1-deoxy-D-xylulose-5-phosphate reductoisomerase]]

[[Category: Atcc 43589]]

[[Category: Noguchi, K]]

[[Category: Ohsawa, K]]

[[Category: Ohtaki, A]]

[[Category: Sasaki, Y]]

[[Category: Takenoya, M]]

[[Category: Yajima, S]]

[[Category: Yohda, M]]

[[Category: Reductoisomerase]]