4ok9: Difference between revisions
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==Crystal structure of the single-stranded RNA binding protein HutP from Geobacillus thermodenitrificans== | |||
<StructureSection load='4ok9' size='340' side='right'caption='[[4ok9]], [[Resolution|resolution]] 1.91Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4ok9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_thermodenitrificans_NG80-2 Geobacillus thermodenitrificans NG80-2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OK9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4OK9 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]] 1.91Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HIS:HISTIDINE'>HIS</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=4ok9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ok9 OCA], [https://pdbe.org/4ok9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ok9 RCSB], [https://www.ebi.ac.uk/pdbsum/4ok9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ok9 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HUTP_GEOTN HUTP_GEOTN] Antiterminator that binds to cis-acting regulatory sequences on the mRNA in the presence of histidine, thereby suppressing transcription termination and activating the hut operon for histidine utilization (By similarity). | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
RNA binding proteins control gene expression by the attenuation/antitermination mechanism. HutP is an RNA binding antitermination protein. It regulates the expression of hut operon when it binds with RNA by modulating the secondary structure of single-stranded hut mRNA. HutP necessitates the presence of l-histidine and divalent metal ion to bind with RNA. Herein, we report the crystal structures of ternary complex (HutP-l-histidine-Mg(2+)) and EDTA (0.5 M) treated ternary complex (HutP-l-histidine-Mg(2+)), solved at 1.9 A and 2.5 A resolutions, respectively, from Geobacillus thermodenitrificans. The addition of 0.5 M EDTA does not affect the overall metal-ion mediated ternary complex structure and however, the metal ions at the non-specific binding sites are chelated, as evidenced from the results of structural features. | |||
Crystal structure of the single-stranded RNA binding protein HutP from Geobacillus thermodenitrificans.,Thiruselvam V, Sivaraman P, Kumarevel T, Ponnuswamy MN Biochem Biophys Res Commun. 2014 Apr 18;446(4):945-51. doi:, 10.1016/j.bbrc.2014.03.036. Epub 2014 Mar 17. PMID:24650662<ref>PMID:24650662</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4ok9" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Geobacillus thermodenitrificans NG80-2]] | |||
[[Category: Large Structures]] | |||
[[Category: Kumarevel TS]] | |||
[[Category: Ponnuswamy MN]] | |||
[[Category: Thiruselvam V]] | |||
