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4yvo
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal Structure of the TPR Domain of Arabidopsis FLU (FLU-TPR)== | |
| + | <StructureSection load='4yvo' size='340' side='right'caption='[[4yvo]], [[Resolution|resolution]] 1.45Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4yvo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4YVO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4YVO 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]] 1.45Å</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=4yvo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yvo OCA], [https://pdbe.org/4yvo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4yvo RCSB], [https://www.ebi.ac.uk/pdbsum/4yvo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4yvo ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/FLU_ARATH FLU_ARATH] Negative regulator of tetrapyrrole biosynthesis (including chlorophyll) in chloroplasts, probably via HEMA1 repression. Inhibits especially the magnesium ion Mg(2+) branch of tetrapyrrole biosynthesis, but independently of heme.<ref>PMID:11606728</ref> <ref>PMID:14508004</ref> <ref>PMID:15584960</ref> <ref>PMID:18182022</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The tetratricopeptide repeat (TPR)-containing protein FLU is a negative regulator of chlorophyll biosynthesis in plants. It directly interacts through its TPR domain with glutamyl-tRNA reductase (GluTR), the rate-limiting enzyme in the formation of delta-aminolevulinic acid (ALA). Delineation of how FLU binds to GluTR is important for understanding the molecular basis for FLU-mediated repression of synthesis of ALA, the universal tetrapyrrole precursor. Here, we characterize the FLU-GluTR interaction by solving the crystal structures of the uncomplexed TPR domain of FLU (FLU(TPR)) at 1.45-A resolution and the complex of the dimeric domain of GluTR bound to FLU(TPR) at 2.4-A resolution. Three non-canonical TPR motifs of each FLU(TPR) form a concave surface and clamp the helix bundle in the C-terminal dimeric domain of GluTR. We demonstrate that a 2:2 FLU(TPR)-GluTR complex is the functional unit for FLU-mediated GluTR regulation and suggest that the formation of the FLU-GluTR complex prevents glutamyl-tRNA, the GluTR substrate, from binding with this enzyme. These results also provide insights into the spatial regulation of ALA synthesis by the membrane-located FLU protein. | ||
| - | + | The Non-canonical Tetratricopeptide Repeat (TPR) Domain of Fluorescent (FLU) Mediates Complex Formation with Glutamyl-tRNA Reductase.,Zhang M, Zhang F, Fang Y, Chen X, Chen Y, Zhang W, Dai HE, Lin R, Liu L J Biol Chem. 2015 Jul 10;290(28):17559-65. doi: 10.1074/jbc.M115.662981. Epub, 2015 Jun 2. PMID:26037924<ref>PMID:26037924</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: Liu | + | <div class="pdbe-citations 4yvo" style="background-color:#fffaf0;"></div> |
| - | [[Category: Zhang | + | == References == |
| - | [[Category: Zhang | + | <references/> |
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Arabidopsis thaliana]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Liu L]] | ||
| + | [[Category: Zhang F]] | ||
| + | [[Category: Zhang M]] | ||
Current revision
Crystal Structure of the TPR Domain of Arabidopsis FLU (FLU-TPR)
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