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| | ==Universal Stress Protein TeaD from the TRAP transporter TeaABC of Halomonas elongata== | | ==Universal Stress Protein TeaD from the TRAP transporter TeaABC of Halomonas elongata== |
| - | <StructureSection load='3hgm' size='340' side='right' caption='[[3hgm]], [[Resolution|resolution]] 1.90Å' scene=''> | + | <StructureSection load='3hgm' size='340' side='right'caption='[[3hgm]], [[Resolution|resolution]] 1.90Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3hgm]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_33173 Atcc 33173]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HGM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3HGM FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3hgm]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Halomonas_elongata Halomonas elongata]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HGM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3HGM FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TeaD ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2746 ATCC 33173])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3hgm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hgm OCA], [http://pdbe.org/3hgm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3hgm RCSB], [http://www.ebi.ac.uk/pdbsum/3hgm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3hgm ProSAT]</span></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=3hgm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hgm OCA], [https://pdbe.org/3hgm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3hgm RCSB], [https://www.ebi.ac.uk/pdbsum/3hgm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3hgm ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/TEAD_HALED TEAD_HALED] ATP-binding protein that negatively regulates activity of the tripartite ATP-independent periplasmic (TRAP) ectoine transport system TeaABC. May regulate uptake according to the ATP status of the cell.<ref>PMID:20113006</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 33173]] | + | [[Category: Halomonas elongata]] |
| - | [[Category: Kuhlmann, S I]] | + | [[Category: Large Structures]] |
| - | [[Category: Schweikhard, E S]] | + | [[Category: Kuhlmann SI]] |
| - | [[Category: Ziegler, C M]] | + | [[Category: Schweikhard ES]] |
| - | [[Category: Rossmann fold]] | + | [[Category: Ziegler CM]] |
| - | [[Category: Signaling protein]]
| + | |
| - | [[Category: Universal stress protein]]
| + | |
| Structural highlights
Function
TEAD_HALED ATP-binding protein that negatively regulates activity of the tripartite ATP-independent periplasmic (TRAP) ectoine transport system TeaABC. May regulate uptake according to the ATP status of the cell.[1]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The halophilic bacterium Halomonas elongata takes up the compatible solute ectoine via the osmoregulated TRAP transporter TeaABC. A fourth orf (teaD) is located adjacent to the teaABC locus that encodes a putative universal stress protein (USP). By RT-PCR experiments we proved a cotranscription of teaD along with teaABC. Deletion of teaD resulted in an enhanced uptake for ectoine by the transporter TeaABC and hence a negative activity regulation of TeaABC by TeaD. A transcriptional regulation via DNA binding could be excluded. ATP binding to native TeaD was shown by HPLC, and the crystal structure of TeaD was solved in complex with ATP to a resolution of 1.9 A by molecular replacement. TeaD forms a dimer-dimer complex with one ATP molecule bound to each monomer, which has a Rossmann-like alpha/beta overall fold. Our results reveal an ATP-dependent oligomerization of TeaD, which might have a functional role in the regulatory mechanism of TeaD. USP-encoding orfs, which are located adjacent to genes encoding for TeaABC homologues, could be identified in several other organisms, and their physiological role in balancing the internal cellular ectoine pool is discussed.
Structure and Function of the Universal Stress Protein TeaD and Its Role in Regulating the Ectoine Transporter TeaABC of Halomonas elongata DSM 2581(T).,Schweikhard ES, Kuhlmann SI, Kunte HJ, Grammann K, Ziegler CM Biochemistry. 2010 Feb 22. PMID:20113006[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Schweikhard ES, Kuhlmann SI, Kunte HJ, Grammann K, Ziegler CM. Structure and Function of the Universal Stress Protein TeaD and Its Role in Regulating the Ectoine Transporter TeaABC of Halomonas elongata DSM 2581(T). Biochemistry. 2010 Feb 22. PMID:20113006 doi:10.1021/bi9017522
- ↑ Schweikhard ES, Kuhlmann SI, Kunte HJ, Grammann K, Ziegler CM. Structure and Function of the Universal Stress Protein TeaD and Its Role in Regulating the Ectoine Transporter TeaABC of Halomonas elongata DSM 2581(T). Biochemistry. 2010 Feb 22. PMID:20113006 doi:10.1021/bi9017522
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