2h5a: Difference between revisions

New page: left|200px<br /><applet load="2h5a" size="450" color="white" frame="true" align="right" spinBox="true" caption="2h5a, resolution 1.72Å" /> '''Complex of the enzym...
 
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[[Image:2h5a.gif|left|200px]]<br /><applet load="2h5a" size="450" color="white" frame="true" align="right" spinBox="true"
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'''Complex of the enzyme PMM/PGM with xylose 1-phosphate'''<br />


==Overview==
==Complex of the enzyme PMM/PGM with xylose 1-phosphate==
Two complexes of the enzyme phosphomannomutase/phosphoglucomutase, (PMM/PGM) from Pseudomonas aeruginosa with a slow substrate and with an, inhibitor have been characterized by X-ray crystallography. Both ligands, induce an interdomain rearrangement in the enzyme that creates a highly, buried active site. Comparisons with enzyme-substrate complexes show that, the inhibitor xylose 1-phosphate utilizes many of the previously observed, enzyme-ligand interactions. In contrast, analysis of the ribose, 1-phosphate complex reveals a combination of new and conserved, enzyme-ligand interactions for binding. The ability of PMM/PGM to, accommodate these two pentose phosphosugars in its active site may be, relevant for future efforts towards inhibitor design.
<StructureSection load='2h5a' size='340' side='right'caption='[[2h5a]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2h5a]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2H5A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2H5A 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]] 1.72&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=X1P:1-O-PHOSPHONO-ALPHA-D-XYLOPYRANOSE'>X1P</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=2h5a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2h5a OCA], [https://pdbe.org/2h5a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2h5a RCSB], [https://www.ebi.ac.uk/pdbsum/2h5a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2h5a ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ALGC_PSEAE ALGC_PSEAE] The phosphomannomutase activity produces a precursor for alginate polymerization. The alginate layer causes a mucoid phenotype and provides a protective barrier against host immune defenses and antibiotics. Also involved in core-LPS biosynthesis due to its phosphoglucomutase activity. Essential for rhamnolipid production, an exoproduct correlated with pathogenicity, and for biofilm production.<ref>PMID:7515870</ref> <ref>PMID:10481091</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/h5/2h5a_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2h5a ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Two complexes of the enzyme phosphomannomutase/phosphoglucomutase (PMM/PGM) from Pseudomonas aeruginosa with a slow substrate and with an inhibitor have been characterized by X-ray crystallography. Both ligands induce an interdomain rearrangement in the enzyme that creates a highly buried active site. Comparisons with enzyme-substrate complexes show that the inhibitor xylose 1-phosphate utilizes many of the previously observed enzyme-ligand interactions. In contrast, analysis of the ribose 1-phosphate complex reveals a combination of new and conserved enzyme-ligand interactions for binding. The ability of PMM/PGM to accommodate these two pentose phosphosugars in its active site may be relevant for future efforts towards inhibitor design.


==About this Structure==
Complexes of the enzyme phosphomannomutase/phosphoglucomutase with a slow substrate and an inhibitor.,Regni C, Shackelford GS, Beamer LJ Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Aug 1;62(Pt, 8):722-6. Epub 2006 Jul 24. PMID:16880541<ref>PMID:16880541</ref>
2H5A is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa] with ZN and X1P as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2H5A OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Complexes of the enzyme phosphomannomutase/phosphoglucomutase with a slow substrate and an inhibitor., Regni C, Shackelford GS, Beamer LJ, Acta Crystallograph Sect F Struct Biol Cryst Commun. 2006 Aug 1;62(Pt, 8):722-6. Epub 2006 Jul 24. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16880541 16880541]
</div>
<div class="pdbe-citations 2h5a" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Phosphomannomutase|Phosphomannomutase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Single protein]]
[[Category: Beamer LJ]]
[[Category: Beamer, L.J.]]
[[Category: Regni C]]
[[Category: Regni, C.]]
[[Category: Shackelford GS]]
[[Category: Shackelford, G.S.]]
[[Category: X1P]]
[[Category: ZN]]
[[Category: enzyme-ligand complex]]
[[Category: inhibitor]]
 
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