4cbv: Difference between revisions
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The | ==X-ray structure of full-length ComE from Streptococcus pneumoniae.== | ||
<StructureSection load='4cbv' size='340' side='right'caption='[[4cbv]], [[Resolution|resolution]] 3.39Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4cbv]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_pneumoniae Streptococcus pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4CBV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4CBV 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]] 3.39Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=4cbv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4cbv OCA], [https://pdbe.org/4cbv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4cbv RCSB], [https://www.ebi.ac.uk/pdbsum/4cbv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4cbv ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q79CK7_STREE Q79CK7_STREE] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Natural transformation contributes to the maintenance and to the evolution of the bacterial genomes. In Streptococcus pneumoniae, this function is reached by achieving the competence state, which is under the control of the ComD-ComE two-component system. We present the crystal and solution structures of ComE. We mimicked the active and non-active states by using the phosphorylated mimetic ComED58E and the unphosphorylatable ComED58A mutants. In the crystal, full-length ComED58A dimerizes through its canonical REC receiver domain but with an atypical mode, which is also adopted by the isolated RECD58A and RECD58E. The LytTR domain adopts a tandem arrangement consistent with the two direct repeats of its promoters. However ComED58A is monomeric in solution, as seen by SAXS, by contrast to ComED58E that dimerizes. For both, a relative mobility between the two domains is assumed. Based on these results we propose two possible ways for activation of ComE by phosphorylation. | |||
Structural insights into the dimerization of the response regulator ComE from Streptococcus pneumoniae.,Boudes M, Sanchez D, Graille M, van Tilbeurgh H, Durand D, Quevillon-Cheruel S Nucleic Acids Res. 2014 Feb 5. PMID:24500202<ref>PMID:24500202</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4cbv" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Response regulator 3D structure|Response regulator 3D structure]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Streptococcus pneumoniae]] | |||
[[Category: Boudes M]] | |||
[[Category: Durand D]] | |||
[[Category: Graille M]] | |||
[[Category: Quevillon-Cheruel S]] | |||
[[Category: Van Tilbeurgh H]] | |||
Latest revision as of 13:43, 6 November 2024
X-ray structure of full-length ComE from Streptococcus pneumoniae.X-ray structure of full-length ComE from Streptococcus pneumoniae.
Structural highlights
FunctionPublication Abstract from PubMedNatural transformation contributes to the maintenance and to the evolution of the bacterial genomes. In Streptococcus pneumoniae, this function is reached by achieving the competence state, which is under the control of the ComD-ComE two-component system. We present the crystal and solution structures of ComE. We mimicked the active and non-active states by using the phosphorylated mimetic ComED58E and the unphosphorylatable ComED58A mutants. In the crystal, full-length ComED58A dimerizes through its canonical REC receiver domain but with an atypical mode, which is also adopted by the isolated RECD58A and RECD58E. The LytTR domain adopts a tandem arrangement consistent with the two direct repeats of its promoters. However ComED58A is monomeric in solution, as seen by SAXS, by contrast to ComED58E that dimerizes. For both, a relative mobility between the two domains is assumed. Based on these results we propose two possible ways for activation of ComE by phosphorylation. Structural insights into the dimerization of the response regulator ComE from Streptococcus pneumoniae.,Boudes M, Sanchez D, Graille M, van Tilbeurgh H, Durand D, Quevillon-Cheruel S Nucleic Acids Res. 2014 Feb 5. PMID:24500202[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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