2iyo: Difference between revisions

From Proteopedia
Jump to navigationJump to search
← Older edit
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,330,058 edits
No edit summary
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,330,058 edits
No edit summary
 
(12 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:2iyo.gif|left|200px]]
<!--
The line below this paragraph, containing "STRUCTURE_2iyo", creates the "Structure Box" on the page.
You may change the PDB parameter (which sets the PDB file loaded into the applet)
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
or leave the SCENE parameter empty for the default display.
-->
{{STRUCTURE_2iyo|  PDB=2iyo  |  SCENE=  }}
'''STRUCTURAL CHARACTERIZATION OF A BACTERIAL 6PDH REVEALS ASPECTS OF SPECIFICITY, MECHANISM AND MODE OF INHIBITION'''


==Structural characterization of a bacterial 6PDH reveals aspects of specificity, mechanism and mode of inhibition==
<StructureSection load='2iyo' size='340' side='right'caption='[[2iyo]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2iyo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Lactococcus_lactis Lactococcus lactis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IYO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IYO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=6PG:6-PHOSPHOGLUCONIC+ACID'>6PG</scene>, <scene name='pdbligand=CAC:CACODYLATE+ION'>CAC</scene></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=2iyo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iyo OCA], [https://pdbe.org/2iyo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2iyo RCSB], [https://www.ebi.ac.uk/pdbsum/2iyo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2iyo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/6PGD_LACLM 6PGD_LACLM] Catalyzes the oxidative decarboxylation of 6-phosphogluconate to ribulose 5-phosphate and CO(2), with concomitant reduction of NADP to NADPH (By similarity).
== 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/iy/2iyo_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=2iyo ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Crystal structures of recombinant Lactococcus lactis 6-phosphogluconate dehydrogenase (LlPDH) in complex with substrate, cofactor, product and inhibitors have been determined. LlPDH shares significant sequence identity with the enzymes from sheep liver and the protozoan parasite Trypanosoma brucei for which structures have been reported. Comparisons indicate that the key residues in the active site are highly conserved, as are the interactions with the cofactor and the product ribulose 5-phosphate. However, there are differences in the conformation of the substrate 6-phosphogluconate which may reflect distinct states relevant to catalysis. Analysis of the complex formed with the potent inhibitor 4-phospho-d-erythronohydroxamic acid, suggests that this molecule does indeed mimic the high-energy intermediate state that it was designed to. The analysis also identified, as a contaminant by-product of the inhibitor synthesis, 4-phospho-d-erythronamide, which binds in similar fashion. LlPDH can now serve as a model system for structure-based inhibitor design targeting the enzyme from Trypanosoma species.


==Overview==
Crystal structures of a bacterial 6-phosphogluconate dehydrogenase reveal aspects of specificity, mechanism and mode of inhibition by analogues of high-energy reaction intermediates.,Sundaramoorthy R, Iulek J, Barrett MP, Bidet O, Ruda GF, Gilbert IH, Hunter WN FEBS J. 2007 Jan;274(1):275-86. PMID:17222187<ref>PMID:17222187</ref>
Crystal structures of recombinant Lactococcus lactis 6-phosphogluconate dehydrogenase (LlPDH) in complex with substrate, cofactor, product and inhibitors have been determined. LlPDH shares significant sequence identity with the enzymes from sheep liver and the protozoan parasite Trypanosoma brucei for which structures have been reported. Comparisons indicate that the key residues in the active site are highly conserved, as are the interactions with the cofactor and the product ribulose 5-phosphate. However, there are differences in the conformation of the substrate 6-phosphogluconate which may reflect distinct states relevant to catalysis. Analysis of the complex formed with the potent inhibitor 4-phospho-d-erythronohydroxamic acid, suggests that this molecule does indeed mimic the high-energy intermediate state that it was designed to. The analysis also identified, as a contaminant by-product of the inhibitor synthesis, 4-phospho-d-erythronamide, which binds in similar fashion. LlPDH can now serve as a model system for structure-based inhibitor design targeting the enzyme from Trypanosoma species.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2IYO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Lactococcus_lactis Lactococcus lactis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IYO OCA].
</div>
<div class="pdbe-citations 2iyo" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Crystal structures of a bacterial 6-phosphogluconate dehydrogenase reveal aspects of specificity, mechanism and mode of inhibition by analogues of high-energy reaction intermediates., Sundaramoorthy R, Iulek J, Barrett MP, Bidet O, Ruda GF, Gilbert IH, Hunter WN, FEBS J. 2007 Jan;274(1):275-86. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17222187 17222187]
*[[6-phosphogluconate dehydrogenase 3D structures|6-phosphogluconate dehydrogenase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Lactococcus lactis]]
[[Category: Lactococcus lactis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Hunter, W N.]]
[[Category: Hunter WN]]
[[Category: Iulek, J.]]
[[Category: Iulek J]]
[[Category: Sundaramoorthy, R.]]
[[Category: Sundaramoorthy R]]
[[Category: 6-phosphogluconate dehydrogenase,nadp]]
[[Category: Oxidoreductase,gluconate utilization]]
[[Category: Pentose shunt]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 08:05:12 2008''

Latest revision as of 14:29, 13 December 2023

Structural characterization of a bacterial 6PDH reveals aspects of specificity, mechanism and mode of inhibition

2iyo, resolution 2.40Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "https://proteopedia.org/index.php?title=2iyo&oldid=3985549"