1krw
From Proteopedia
(Difference between revisions)
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==SOLUTION STRUCTURE AND BACKBONE DYNAMICS OF BERYLLOFLUORIDE-ACTIVATED NTRC RECEIVER DOMAIN== | ==SOLUTION STRUCTURE AND BACKBONE DYNAMICS OF BERYLLOFLUORIDE-ACTIVATED NTRC RECEIVER DOMAIN== | ||
- | <StructureSection load='1krw' size='340' side='right'caption='[[1krw | + | <StructureSection load='1krw' size='340' side='right'caption='[[1krw]]' scene=''> |
== Structural highlights == | == Structural highlights == | ||
- | <table><tr><td colspan='2'>[[1krw]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KRW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KRW FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1krw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium Salmonella enterica subsp. enterica serovar Typhimurium]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KRW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KRW FirstGlance]. <br> |
- | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1krw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1krw OCA], [https://pdbe.org/1krw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1krw RCSB], [https://www.ebi.ac.uk/pdbsum/1krw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1krw 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=1krw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1krw OCA], [https://pdbe.org/1krw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1krw RCSB], [https://www.ebi.ac.uk/pdbsum/1krw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1krw ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
- | + | [https://www.uniprot.org/uniprot/NTRC_SALTY NTRC_SALTY] Member of the two-component regulatory system NtrB/NtrC involved in the activation of nitrogen assimilatory genes such as GlnA. NtrC is phosphorylated by NtrB and interacts with sigma-54. | |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1krw ConSurf]. | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1krw ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
- | <div style="background-color:#fffaf0;"> | ||
- | == Publication Abstract from PubMed == | ||
- | Bacterial receiver domains mediate the cellular response to environmental changes through conformational changes induced by phosphorylation of a conserved aspartate residue. While the structures of several activated receiver domains have recently been determined, there is substantial variation in the conformational changes occurring upon activation. Here we present the high-resolution structure of the activated NtrC receiver domain (BeF(3)(-)-NtrC(r) complex) determined using NMR data, including residual dipolar couplings, yielding a family of structures with a backbone rmsd of 0.57 +/- 0.08 A, which is compared with the previous lower-resolution structure of the phosphorylated protein. Both phosphorylation and beryllofluoride addition induce a shift in register and an axial rotation of alpha-helix 4. In this high-resolution structure, we are able to observe a concerted change in the positions of Thr82 and Tyr101; this correlated change in two conserved residues (termed Y-T coupling) has been considered a general feature of the conformational change in receiver domains upon activation. In NtrC, this correlated side chain shift, leading to the helix reorientation, is distinctly different from the smaller reorganization seen in other activated receiver domains, and involves numerous other residues which do not participate in conformational changes seen in the other systems. Titration of the activated receiver domain with peptides from the NtrC ATPase domain provides direct evidence for interactions on the rearranged face of the receiver domain, which are likely to be responsible for enabling assembly into the active aggregate. Analysis of the active structure also suggests that His84 may play a role in controlling the phosphate hydrolysis rate. | ||
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- | High-resolution solution structure of the beryllofluoride-activated NtrC receiver domain.,Hastings CA, Lee SY, Cho HS, Yan D, Kustu S, Wemmer DE Biochemistry. 2003 Aug 5;42(30):9081-90. PMID:12885241<ref>PMID:12885241</ref> | ||
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- | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
- | </div> | ||
- | <div class="pdbe-citations 1krw" style="background-color:#fffaf0;"></div> | ||
- | == References == | ||
- | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
- | [[Category: Cho | + | [[Category: Salmonella enterica subsp. enterica serovar Typhimurium]] |
- | [[Category: Hastings | + | [[Category: Cho HS]] |
- | [[Category: Kustu | + | [[Category: Hastings CA]] |
- | [[Category: Lee | + | [[Category: Kustu S]] |
- | [[Category: Wemmer | + | [[Category: Lee S-Y]] |
- | [[Category: Yan | + | [[Category: Wemmer DE]] |
- | + | [[Category: Yan D]] | |
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Revision as of 08:03, 3 April 2024
SOLUTION STRUCTURE AND BACKBONE DYNAMICS OF BERYLLOFLUORIDE-ACTIVATED NTRC RECEIVER DOMAIN
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