4p7x: Difference between revisions
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''' | ==L-pipecolic acid-bound L-proline cis-4-hydroxylase== | ||
<StructureSection load='4p7x' size='340' side='right' caption='[[4p7x]], [[Resolution|resolution]] 1.30Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4p7x]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4P7X OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4P7X FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AKG:2-OXOGLUTARIC+ACID'>AKG</scene>, <scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=CXS:3-CYCLOHEXYL-1-PROPYLSULFONIC+ACID'>CXS</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=YCP:(2S)-PIPERIDINE-2-CARBOXYLIC+ACID'>YCP</scene></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=4p7x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p7x OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4p7x RCSB], [http://www.ebi.ac.uk/pdbsum/4p7x PDBsum]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[http://www.uniprot.org/uniprot/P4H_RHILO P4H_RHILO]] Dioxygenase that catalyzes the 2-oxoglutarate-dependent selective hydroxylation of free L-proline to cis-4-hydroxy-L-proline (cis-4-Hyp).<ref>PMID:19133227</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Enzymatic regio- and stereoselective hydroxylation are valuable for the production of hydroxylated chiral ingredients. Proline hydroxylases are representative members of the nonheme Fe2+/alpha-ketoglutarate-dependent dioxygenase family. These enzymes catalyze the conversion of l-proline into hydroxy-l-prolines (Hyps). l-Proline cis-4-hydroxylases (cis-P4Hs) from Sinorhizobium meliloti and Mesorhizobium loti catalyze the hydroxylation of l-proline, generating cis-4-hydroxy-l-proline, as well as the hydroxylation of l-pipecolic acid (l-Pip), generating two regioisomers, cis-5-Hypip and cis-3-Hypip. To selectively produce cis-5-Hypip without simultaneous production of two isomers, protein engineering of cis-P4Hs is required. We therefore carried out protein engineering of cis-P4H to facilitate the conversion of the majority of l-Pip into the cis-5-Hypip isomer. We first solved the X-ray crystal structure of cis-P4H in complex with each of l-Pro and l-Pip. Then, we conducted three rounds of directed evolution and successfully created a cis-P4H triple mutant, V97F/V95W/E114G, demonstrating the desired regioselectivity toward cis-5-Hypip. | |||
Refined Regio- and Stereoselective Hydroxylation of l-Pipecolic Acid by Protein Engineering of l-Proline cis-4-Hydroxylase Based on the X-ray Crystal Structure.,Koketsu K, Shomura Y, Moriwaki K, Hayashi M, Mitsuhashi S, Hara R, Kino K, Higuchi Y ACS Synth Biol. 2014 Sep 5. PMID:25171735<ref>PMID:25171735</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Hara, R]] | |||
[[Category: Hayashi, M]] | |||
[[Category: Higuchi, Y]] | |||
[[Category: Kino, K]] | |||
[[Category: Koketsu, K]] | |||
[[Category: Mitsuhashi, S]] | |||
[[Category: Moriwaki, K]] | |||
[[Category: Shomura, Y]] | |||
[[Category: Hydroxylase]] | |||
[[Category: Proline]] | |||
Revision as of 12:35, 5 January 2015
L-pipecolic acid-bound L-proline cis-4-hydroxylaseL-pipecolic acid-bound L-proline cis-4-hydroxylase
Structural highlights
Function[P4H_RHILO] Dioxygenase that catalyzes the 2-oxoglutarate-dependent selective hydroxylation of free L-proline to cis-4-hydroxy-L-proline (cis-4-Hyp).[1] Publication Abstract from PubMedEnzymatic regio- and stereoselective hydroxylation are valuable for the production of hydroxylated chiral ingredients. Proline hydroxylases are representative members of the nonheme Fe2+/alpha-ketoglutarate-dependent dioxygenase family. These enzymes catalyze the conversion of l-proline into hydroxy-l-prolines (Hyps). l-Proline cis-4-hydroxylases (cis-P4Hs) from Sinorhizobium meliloti and Mesorhizobium loti catalyze the hydroxylation of l-proline, generating cis-4-hydroxy-l-proline, as well as the hydroxylation of l-pipecolic acid (l-Pip), generating two regioisomers, cis-5-Hypip and cis-3-Hypip. To selectively produce cis-5-Hypip without simultaneous production of two isomers, protein engineering of cis-P4Hs is required. We therefore carried out protein engineering of cis-P4H to facilitate the conversion of the majority of l-Pip into the cis-5-Hypip isomer. We first solved the X-ray crystal structure of cis-P4H in complex with each of l-Pro and l-Pip. Then, we conducted three rounds of directed evolution and successfully created a cis-P4H triple mutant, V97F/V95W/E114G, demonstrating the desired regioselectivity toward cis-5-Hypip. Refined Regio- and Stereoselective Hydroxylation of l-Pipecolic Acid by Protein Engineering of l-Proline cis-4-Hydroxylase Based on the X-ray Crystal Structure.,Koketsu K, Shomura Y, Moriwaki K, Hayashi M, Mitsuhashi S, Hara R, Kino K, Higuchi Y ACS Synth Biol. 2014 Sep 5. PMID:25171735[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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