5gj9
From Proteopedia
(Difference between revisions)
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==Crystal structure of Arabidopsis thaliana ACO2 in complex with POA== | ==Crystal structure of Arabidopsis thaliana ACO2 in complex with POA== | ||
| - | <StructureSection load='5gj9' size='340' side='right' caption='[[5gj9]], [[Resolution|resolution]] 2.10Å' scene=''> | + | <StructureSection load='5gj9' size='340' side='right'caption='[[5gj9]], [[Resolution|resolution]] 2.10Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[5gj9]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5GJ9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5GJ9 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5gj9]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5GJ9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5GJ9 FirstGlance]. <br> |
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VGL:PYRAZINE-2-CARBOXYLIC+ACID'>VGL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VGL:PYRAZINE-2-CARBOXYLIC+ACID'>VGL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5gja|5gja]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5gja|5gja]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ACO2, EI305, At1g62380, F24O1.10 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Aminocyclopropanecarboxylate_oxidase Aminocyclopropanecarboxylate oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.17.4 1.14.17.4] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Aminocyclopropanecarboxylate_oxidase Aminocyclopropanecarboxylate oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.17.4 1.14.17.4] </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=5gj9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5gj9 OCA], [http://pdbe.org/5gj9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5gj9 RCSB], [http://www.ebi.ac.uk/pdbsum/5gj9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5gj9 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=5gj9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5gj9 OCA], [http://pdbe.org/5gj9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5gj9 RCSB], [http://www.ebi.ac.uk/pdbsum/5gj9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5gj9 ProSAT]</span></td></tr> | ||
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== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/ACCO2_ARATH ACCO2_ARATH]] Enzyme involved in the ethylene biosynthesis. Required to mediate the 1-aminocyclopropane-1-carboxylic acid (ACC)-mediated reversion of the ABA-induced inhibition of seed germination via endosperm rupture. May promote stem elongation by maximizing the extensibility cells, possibly by activating ethylene biosynthesis, in response to very-long-chain fatty acids (VLCFAs C20:0 to C30:0).<ref>PMID:17993622</ref> <ref>PMID:20023197</ref> | [[http://www.uniprot.org/uniprot/ACCO2_ARATH ACCO2_ARATH]] Enzyme involved in the ethylene biosynthesis. Required to mediate the 1-aminocyclopropane-1-carboxylic acid (ACC)-mediated reversion of the ABA-induced inhibition of seed germination via endosperm rupture. May promote stem elongation by maximizing the extensibility cells, possibly by activating ethylene biosynthesis, in response to very-long-chain fatty acids (VLCFAs C20:0 to C30:0).<ref>PMID:17993622</ref> <ref>PMID:20023197</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Ethylene is an important phytohormone that promotes the ripening of fruits and senescence of flowers thereby reducing their shelf lives. Specific ethylene biosynthesis inhibitors would help to decrease postharvest loss. Here, we identify pyrazinamide (PZA), a clinical drug used to treat tuberculosis, as an inhibitor of ethylene biosynthesis in Arabidopsis thaliana, using a chemical genetics approach. PZA is converted to pyrazinecarboxylic acid (POA) in plant cells, suppressing the activity of 1-aminocyclopropane-1-carboxylic acid oxidase (ACO), the enzyme catalysing the final step of ethylene formation. The crystal structures of Arabidopsis ACO2 in complex with POA or 2-Picolinic Acid (2-PA), a POA-related compound, reveal that POA/2-PA bind at the active site of ACO, preventing the enzyme from interacting with its natural substrates. Our work suggests that PZA and its derivatives may be promising regulators of plant metabolism, in particular ethylene biosynthesis. | ||
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| + | Pyrazinamide and derivatives block ethylene biosynthesis by inhibiting ACC oxidase.,Sun X, Li Y, He W, Ji C, Xia P, Wang Y, Du S, Li H, Raikhel N, Xiao J, Guo H Nat Commun. 2017 Jun 12;8:15758. doi: 10.1038/ncomms15758. PMID:28604689<ref>PMID:28604689</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5gj9" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Aminocyclopropanecarboxylate oxidase]] | [[Category: Aminocyclopropanecarboxylate oxidase]] | ||
| + | [[Category: Arath]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: Du, S]] | [[Category: Du, S]] | ||
[[Category: Guo, H W]] | [[Category: Guo, H W]] | ||
Revision as of 08:49, 18 December 2019
Crystal structure of Arabidopsis thaliana ACO2 in complex with POA
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