6fgj

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Current revision (07:10, 15 February 2018) (edit) (undo)
 
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<StructureSection load='6fgj' size='340' side='right' caption='[[6fgj]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
<StructureSection load='6fgj' size='340' side='right' caption='[[6fgj]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6fgj]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FGJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6FGJ FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6fgj]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FGJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6FGJ FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ywaC, AB454_12730, AB466_12625, AB478_12605, AB526_12980, AFO97_10970, AFP37_10975, EP54_00695, EQ90_03295, ERS072738_01254, ERS074020_00750, HMPREF3211_00175 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1280 "Micrococcus aureus" (Rosenbach 1884) Zopf 1885])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/GTP_diphosphokinase GTP diphosphokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.6.5 2.7.6.5] </span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/GTP_diphosphokinase GTP diphosphokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.6.5 2.7.6.5] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6fgj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6fgj OCA], [http://pdbe.org/6fgj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6fgj RCSB], [http://www.ebi.ac.uk/pdbsum/6fgj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6fgj ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6fgj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6fgj OCA], [http://pdbe.org/6fgj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6fgj RCSB], [http://www.ebi.ac.uk/pdbsum/6fgj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6fgj ProSAT]</span></td></tr>
</table>
</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The nutritional alarmones ppGpp and pppGpp (collectively: (p)ppGpp) are nucleotide-based second messengers enabling bacteria to respond to environmental and stress conditions. Several bacterial species contain two highly homologous (p)ppGpp synthetases named RelP (SAS2, YwaC) and RelQ (SAS1, YjbM). It is established that RelQ forms homotetramers that are subject to positive allosteric regulation by pppGpp, but structural and mechanistic insights into RelP lack behind. Here we present a structural and mechanistic characterization of RelP. In stark contrast to RelQ, RelP is not allosterically regulated by pppGpp and displays a different enzyme kinetic behavior. This discrepancy is evoked by different conformational properties of the guanosine-substrate binding site (G-Loop) of both proteins. Our study shows how minor structural divergences between close homologues result in new functional features during the course of molecular evolution.
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Structural and mechanistic divergence of the small (p)ppGpp synthetases RelP and RelQ.,Steinchen W, Vogt MS, Altegoer F, Giammarinaro PI, Horvatek P, Wolz C, Bange G Sci Rep. 2018 Feb 1;8(1):2195. doi: 10.1038/s41598-018-20634-4. PMID:29391580<ref>PMID:29391580</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 6fgj" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>

Current revision

Crystal structure of the small alarmone synthethase 2 from Staphylococcus aureus

6fgj, resolution 2.25Å

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