5u58: Difference between revisions

No edit summary
No edit summary
 
Line 3: Line 3:
<StructureSection load='5u58' size='340' side='right'caption='[[5u58]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
<StructureSection load='5u58' size='340' side='right'caption='[[5u58]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[5u58]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_19310 Atcc 19310]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5U58 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5U58 FirstGlance]. <br>
<table><tr><td colspan='2'>[[5u58]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_syringae Pseudomonas syringae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5U58 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5U58 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=TB6:[(2R)-2-HYDROXYPROPYL]PHOSPHONIC+ACID'>TB6</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]] 2.7&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5u57|5u57]], [[5u55|5u55]], [[5u5d|5u5d]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=TB6:[(2R)-2-HYDROXYPROPYL]PHOSPHONIC+ACID'>TB6</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">hppE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=317 ATCC 19310])</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=5u58 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5u58 OCA], [https://pdbe.org/5u58 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5u58 RCSB], [https://www.ebi.ac.uk/pdbsum/5u58 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5u58 ProSAT]</span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/(S)-2-hydroxypropylphosphonic_acid_epoxidase (S)-2-hydroxypropylphosphonic acid epoxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.23 1.11.1.23] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5u58 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5u58 OCA], [http://pdbe.org/5u58 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5u58 RCSB], [http://www.ebi.ac.uk/pdbsum/5u58 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5u58 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/HPPE_PSESX HPPE_PSESX]] Non-heme-dependent dioxygenase that catalyzes the oxidative epoxidation of (S)-2-hydroxypropylphosphonate into (1R,2S)-epoxypropylphosphonate, the final step in the biosynthesis of fosfomycin antibiotic.<ref>PMID:18656958</ref
[https://www.uniprot.org/uniprot/HPPE_PSESX HPPE_PSESX] Non-heme-dependent dioxygenase that catalyzes the oxidative epoxidation of (S)-2-hydroxypropylphosphonate into (1R,2S)-epoxypropylphosphonate, the final step in the biosynthesis of fosfomycin antibiotic.<ref>PMID:18656958</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The broad-spectrum phosphonate antibiotic fosfomycin is currently in use for clinical treatment of infections caused by both Gram-positive and Gram-negative uropathogens. The antibiotic is biosynthesized by various streptomycetes, as well as by pseudomonads. Notably, the biosynthetic strategies used by the two genera share only two steps: the first step in which primary metabolite phosphoenolpyruvate (PEP) is converted to phosphonopyruvate (PnPy) and the terminal step in which 2-hydroxypropylphosphonate (2-HPP) is converted to fosfomycin. Otherwise, distinct enzymatic paths are employed. Here, we biochemically confirm the last two steps in the fosfomycin biosynthetic pathway of Pseudomonas syringae PB-5123, showing that Psf3 performs the reduction of 2-oxopropylphosphonate (2-OPP) to (S)-2-HPP, followed by the Psf4-catalyzed epoxidation of (S)-2-HPP to fosfomycin. Psf4 can also accept (R)-2-HPP as a substrate but instead performs an oxidation to make 2-OPP. We show that the combined activities of Psf3 and Psf4 can be used to convert racemic 2-HPP to fosfomycin in an enantioconvergent process. X-ray structures of each enzyme with bound substrates provide insights into the stereospecificity of each conversion. These studies shed light on the reaction mechanisms of the two terminal enzymes in a distinct pathway employed by pseudomonads for the production of a potent antimicrobial agent.
 
Characterization of Two Late-Stage Enzymes Involved in Fosfomycin Biosynthesis in Pseudomonads.,Olivares P, Ulrich EC, Chekan JR, van der Donk WA, Nair SK ACS Chem Biol. 2016 Dec 27. doi: 10.1021/acschembio.6b00939. PMID:27977135<ref>PMID:27977135</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5u58" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
Line 28: Line 17:
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Atcc 19310]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Chekan, J R]]
[[Category: Pseudomonas syringae]]
[[Category: Nair, S K]]
[[Category: Chekan JR]]
[[Category: Epoxidase]]
[[Category: Nair SK]]
[[Category: Fosfomycin]]
[[Category: Oxidase]]
[[Category: Oxidoreductase]]

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA