2ypp: Difference between revisions
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==3-deoxy-D-arabino-heptulosonate 7-phosphate synthase in complex with 3 tyrosine molecules== | ==3-deoxy-D-arabino-heptulosonate 7-phosphate synthase in complex with 3 tyrosine molecules== | ||
<StructureSection load='2ypp' size='340' side='right' caption='[[2ypp]], [[Resolution|resolution]] 2.30Å' scene=''> | <StructureSection load='2ypp' size='340' side='right'caption='[[2ypp]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ypp]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2ypp]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YPP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2YPP FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TYR:TYROSINE'>TYR</scene | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3Å</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=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TYR:TYROSINE'>TYR</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=2ypp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ypp OCA], [https://pdbe.org/2ypp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ypp RCSB], [https://www.ebi.ac.uk/pdbsum/2ypp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ypp ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/AROG_MYCTU AROG_MYCTU] Catalyzes an aldol-like condensation reaction between phosphoenolpyruvate (PEP) and D-erythrose 4-phosphate (E4P) to generate 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAH7P) and inorganic phosphate.<ref>PMID:16288916</ref> | |||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 16: | Line 18: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2ypp" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[DAHP synthase 3D structures|DAHP synthase 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Mycobacterium tuberculosis]] | [[Category: Mycobacterium tuberculosis]] | ||
[[Category: Baker | [[Category: Baker EN]] | ||
[[Category: Blackmore | [[Category: Blackmore NJ]] | ||
[[Category: Hutton | [[Category: Hutton RD]] | ||
[[Category: Jameson | [[Category: Jameson GB]] | ||
[[Category: Jiao | [[Category: Jiao W]] | ||
[[Category: Parker | [[Category: Parker EJ]] | ||
[[Category: Reichau | [[Category: Reichau S]] | ||
Latest revision as of 13:57, 20 December 2023
3-deoxy-D-arabino-heptulosonate 7-phosphate synthase in complex with 3 tyrosine molecules3-deoxy-D-arabino-heptulosonate 7-phosphate synthase in complex with 3 tyrosine molecules
Structural highlights
FunctionAROG_MYCTU Catalyzes an aldol-like condensation reaction between phosphoenolpyruvate (PEP) and D-erythrose 4-phosphate (E4P) to generate 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAH7P) and inorganic phosphate.[1] Publication Abstract from PubMed3-Deoxy-D-arabino-heptulosonate 7-phosphate synthase (DAH7PS) catalyzes the first step in the shikimate pathway, the pathway responsible for the biosynthesis of the aromatic amino acids, Trp, Phe and Tyr. Unlike many other organisms that produce up to three isozymes, each feedback-regulated by one of the aromatic amino acid pathway end-products, Mycobacterium tuberculosis expresses a single DAH7PS enzyme that can be controlled by combinations of aromatic amino acids. This study shows that the synergistic inhibition of this enzyme by a combination Trp and Phe can be significantly augmented by the addition of Tyr. We used X-ray crystallography, mutagenesis and isothermal titration calorimetry studies to show that DAH7PS from M. tuberculosis possesses a Tyr-selective site in addition to the Trp and Phe sites, revealing an unusual and highly sophisticated network of three synergistic allosteric sites on one enzyme. This ternary inhibitory response, by a combination of all three aromatic amino acids, allows a tunable response of the protein to changing metabolic demands. Three Sites and You Are Out: Ternary Synergistic Allostery Controls Aromatic Aminoacid Biosynthesis in Mycobacterium Tuberculosis.,Blackmore NJ, Reichau S, Jiao W, Hutton RD, Baker EN, Jameson GB, Parker EJ J Mol Biol. 2012 Dec 27. pii: S0022-2836(12)00952-7. doi:, 10.1016/j.jmb.2012.12.019. PMID:23274137[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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