5x03
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal structure of the C-terminal domain of Bacillus subtilis GabR reveals a closed conformation by the binding of gamma-aminobutyric acid, inducing the transcriptional activation== | |
| + | <StructureSection load='5x03' size='340' side='right' caption='[[5x03]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5x03]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5X03 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5X03 FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ABU:GAMMA-AMINO-BUTANOIC+ACID'>ABU</scene>, <scene name='pdbligand=PLP:PYRIDOXAL-5-PHOSPHATE'>PLP</scene></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=5x03 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5x03 OCA], [http://pdbe.org/5x03 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5x03 RCSB], [http://www.ebi.ac.uk/pdbsum/5x03 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5x03 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/GABR_BACSU GABR_BACSU]] Activates the transcription of the gabTD operon. Is also a repressor of its own expression, both in the presence and absence of GABA. Binds specifically to the DNA region overlapping the -35 region of the gabT promoter and the -10 and +1 regions of the gabR promoter. Principally regulates the utilization of gamma-aminobutyrate.<ref>PMID:12123465</ref> <ref>PMID:15223311</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Bacillus subtilis GabR (BsGabR) is involved in the gamma-aminobutyric acid (GABA) catabolism as a transcriptional regulator, consisting of an N-terminal helix-turn-helix DNA-binding domain and a C-terminal aminotransferase-like (AT-like) domain. Research on the C-terminal AT-like domain of BsGabR (BsGabR-CTD) has focused on the interaction with GABA as an effector, but most its functional details remain unclear. To understand the underlying mechanism, we report the crystal structure of BsGabR-CTD in complex with pyridoxal 5'-phosphate (PLP) and GABA at 2.0 A resolution. The structure of ligand-bound BsGabR-CTD revealed two distinct monomeric states in a homodimer. One subunit is a closed-form containing the PLP-GABA adduct, and the other subunit is a PLP-bound open-form. Our structural studies provide a detailed mechanism indicating that the open-to-closed transition by the binding of GABA induces the conformational rearrangement of BsGabR-CTD, which may trigger the activation of transcription. | ||
| - | + | Crystal structure of the C-terminal domain of Bacillus subtilis GabR reveals a closed conformation by gamma-aminobutyric acid binding, inducing transcriptional activation.,Park SA, Park YS, Lee KS Biochem Biophys Res Commun. 2017 May 27;487(2):287-291. doi:, 10.1016/j.bbrc.2017.04.052. Epub 2017 Apr 12. PMID:28412355<ref>PMID:28412355</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: Park, S | + | <div class="pdbe-citations 5x03" style="background-color:#fffaf0;"></div> |
| - | [[Category: | + | == References == |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Lee, K S]] | ||
| + | [[Category: Park, S A]] | ||
| + | [[Category: Aminotransferase-like domain]] | ||
| + | [[Category: External schiff base]] | ||
| + | [[Category: Transcription]] | ||
| + | [[Category: Transcriptional regulator]] | ||
Revision as of 13:41, 24 May 2017
Crystal structure of the C-terminal domain of Bacillus subtilis GabR reveals a closed conformation by the binding of gamma-aminobutyric acid, inducing the transcriptional activation
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