3du0: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| (7 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==E. coli dihydrodipicolinate synthase with first substrate, pyruvate, bound in active site== | |||
<StructureSection load='3du0' size='340' side='right'caption='[[3du0]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3du0]] 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=3DU0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DU0 FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr> | |||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=KPI:(2S)-2-AMINO-6-[(1-HYDROXY-1-OXO-PROPAN-2-YLIDENE)AMINO]HEXANOIC+ACID'>KPI</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1yxc|1yxc]]</div></td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dapA, b2478, JW2463 ([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'>[https://en.wikipedia.org/wiki/4-hydroxy-tetrahydrodipicolinate_synthase 4-hydroxy-tetrahydrodipicolinate synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.3.3.7 4.3.3.7] </span></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=3du0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3du0 OCA], [https://pdbe.org/3du0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3du0 RCSB], [https://www.ebi.ac.uk/pdbsum/3du0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3du0 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[https://www.uniprot.org/uniprot/DAPA_ECOLI DAPA_ECOLI]] Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).<ref>PMID:20503968</ref> <ref>PMID:8993314</ref> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/du/3du0_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3du0 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Dihydrodipicolinate synthase (DHDPS) mediates the key first reaction common to the biosynthesis of (S)-lysine and meso-diaminopimelate, molecules which play a crucial cross-linking role in bacterial cell walls. An effective inhibitor of DHDPS would represent a useful antibacterial agent; despite extensive effort, a suitable inhibitor has yet to be found. In an attempt to examine the specificity of the active site of DHDPS, the enzyme was cocrystallized with the substrate analogue oxaloacetate. The resulting crystals diffracted to 2.0 A resolution, but solution of the protein structure revealed that pyruvate was bound in the active site rather than oxaloacetic acid. Kinetic analysis confirmed that the decarboxylation of oxaloacetate was not catalysed by DHDPS and was instead a slow spontaneous chemical process. | |||
The high-resolution structure of dihydrodipicolinate synthase from Escherichia coli bound to its first substrate, pyruvate.,Devenish SR, Gerrard JA, Jameson GB, Dobson RC Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Dec 1;64(Pt 12):1092-5., doi: 10.1107/S1744309108033654. Epub 2008 Nov 28. PMID:19052357<ref>PMID:19052357</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3du0" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Dihydrodipicolinate synthase|Dihydrodipicolinate synthase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: 4-hydroxy-tetrahydrodipicolinate synthase]] | |||
[[Category: Ecoli]] | |||
[[Category: Large Structures]] | |||
[[Category: Devenish, S R.A]] | |||
[[Category: Dobson, R C.J]] | |||
[[Category: Gerrard, J A]] | |||
[[Category: Jameson, G B]] | |||
[[Category: Alpha/beta barrel]] | |||
[[Category: Amino-acid biosynthesis]] | |||
[[Category: Diaminopimelate biosynthesis]] | |||
[[Category: Lyase]] | |||
[[Category: Lysine biosynthesis]] | |||
[[Category: Schiff base]] | |||
[[Category: Tim barrel]] | |||
Latest revision as of 11:07, 9 February 2022
E. coli dihydrodipicolinate synthase with first substrate, pyruvate, bound in active siteE. coli dihydrodipicolinate synthase with first substrate, pyruvate, bound in active site
Structural highlights
Function[DAPA_ECOLI] Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).[1] [2] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedDihydrodipicolinate synthase (DHDPS) mediates the key first reaction common to the biosynthesis of (S)-lysine and meso-diaminopimelate, molecules which play a crucial cross-linking role in bacterial cell walls. An effective inhibitor of DHDPS would represent a useful antibacterial agent; despite extensive effort, a suitable inhibitor has yet to be found. In an attempt to examine the specificity of the active site of DHDPS, the enzyme was cocrystallized with the substrate analogue oxaloacetate. The resulting crystals diffracted to 2.0 A resolution, but solution of the protein structure revealed that pyruvate was bound in the active site rather than oxaloacetic acid. Kinetic analysis confirmed that the decarboxylation of oxaloacetate was not catalysed by DHDPS and was instead a slow spontaneous chemical process. The high-resolution structure of dihydrodipicolinate synthase from Escherichia coli bound to its first substrate, pyruvate.,Devenish SR, Gerrard JA, Jameson GB, Dobson RC Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Dec 1;64(Pt 12):1092-5., doi: 10.1107/S1744309108033654. Epub 2008 Nov 28. PMID:19052357[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||||||||||||