3uwm: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
==Ec_IspH in complex with 4-oxobutyl diphosphate (1302)== | ==Ec_IspH in complex with 4-oxobutyl diphosphate (1302)== | ||
<StructureSection load='3uwm' size='340' side='right' caption='[[3uwm]], [[Resolution|resolution]] 1.80Å' scene=''> | <StructureSection load='3uwm' size='340' side='right'caption='[[3uwm]], [[Resolution|resolution]] 1.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3uwm]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[3uwm]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UWM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UWM FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0JX:(3E)-4-HYDROXYBUT-3-EN-1-YL+TRIHYDROGEN+DIPHOSPHATE'>0JX</scene>, <scene name='pdbligand=0K2:4-OXOBUTYL+TRIHYDROGEN+DIPHOSPHATE'>0K2</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0JX:(3E)-4-HYDROXYBUT-3-EN-1-YL+TRIHYDROGEN+DIPHOSPHATE'>0JX</scene>, <scene name='pdbligand=0K2:4-OXOBUTYL+TRIHYDROGEN+DIPHOSPHATE'>0K2</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ke8|3ke8]], [[3dnf|3dnf]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3ke8|3ke8]], [[3dnf|3dnf]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ispH, lytB, yaaE, b0029, JW0027 ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ispH, lytB, yaaE, b0029, JW0027 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/4-hydroxy-3-methylbut-2-enyl_diphosphate_reductase 4-hydroxy-3-methylbut-2-enyl diphosphate reductase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.17.1.2 1.17.1.2] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3uwm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3uwm OCA], [https://pdbe.org/3uwm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3uwm RCSB], [https://www.ebi.ac.uk/pdbsum/3uwm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3uwm ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/ISPH_ECOLI ISPH_ECOLI]] Converts 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate into isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Is also involved in penicillin tolerance and control of the stringent response. Seems to directly or indirectly interact with RelA to maintain it in an inactive form during normal growth.<ref>PMID:19569147</ref> <ref>PMID:20080550</ref> <ref>PMID:22137895</ref> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 23: | Line 23: | ||
==See Also== | ==See Also== | ||
*[[4-hydroxy-3-methylbut-2-enyl diphosphate reductase|4-hydroxy-3-methylbut-2-enyl diphosphate reductase]] | *[[4-hydroxy-3-methylbut-2-enyl diphosphate reductase 3D structures|4-hydroxy-3-methylbut-2-enyl diphosphate reductase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
| Line 30: | Line 30: | ||
[[Category: 4-hydroxy-3-methylbut-2-enyl diphosphate reductase]] | [[Category: 4-hydroxy-3-methylbut-2-enyl diphosphate reductase]] | ||
[[Category: Ecoli]] | [[Category: Ecoli]] | ||
[[Category: Large Structures]] | |||
[[Category: Bacher, A]] | [[Category: Bacher, A]] | ||
[[Category: Eisenreich, W]] | [[Category: Eisenreich, W]] | ||
Revision as of 11:12, 20 July 2022
Ec_IspH in complex with 4-oxobutyl diphosphate (1302)Ec_IspH in complex with 4-oxobutyl diphosphate (1302)
Structural highlights
Function[ISPH_ECOLI] Converts 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate into isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Is also involved in penicillin tolerance and control of the stringent response. Seems to directly or indirectly interact with RelA to maintain it in an inactive form during normal growth.[1] [2] [3] Publication Abstract from PubMedThe final step of the methylerythritol phosphate isoprenoid biosynthesis pathway is catalysed by the iron-sulphur enzyme IspH, producing the universal precursors of terpenes: isopentenyl diphosphate and dimethylallyl diphosphate. Here we report an unforeseen reaction discovered during the investigation of the interaction of IspH with acetylene inhibitors by X-ray crystallography, Mossbauer, and nuclear magnetic resonance spectroscopy. In addition to its role as a 2H(+)/2e(-) reductase, IspH can hydrate acetylenes to aldehydes and ketones via anti-Markovnikov/Markovnikov addition. The reactions only occur with the oxidised protein and proceed via eta(1)-O-enolate intermediates. One of these is characterized crystallographically and contains a C4 ligand oxygen bound to the unique, fourth iron in the 4Fe-4S cluster: this intermediate subsequently hydrolyzes to produce an aldehyde product. This unexpected side to IspH reactivity is of interest in the context of the mechanism of action of other acetylene hydratases, as well as in the design of antiinfectives targeting IspH. Discovery of acetylene hydratase activity of the iron-sulphur protein IspH.,Span I, Wang K, Wang W, Zhang Y, Bacher A, Eisenreich W, Li K, Schulz C, Oldfield E, Groll M Nat Commun. 2012 Sep 4;3:1042. doi: 10.1038/ncomms2052. PMID:22948824[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||||||||||