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4i9c

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==Crystal structure of aspartyl phosphate phosphatase F from B.subtilis in complex with its inhibitory peptide==
==Crystal structure of aspartyl phosphate phosphatase F from B.subtilis in complex with its inhibitory peptide==
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<StructureSection load='4i9c' size='340' side='right' caption='[[4i9c]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
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<StructureSection load='4i9c' size='340' side='right'caption='[[4i9c]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4i9c]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacsu Bacsu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4I9C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4I9C FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4i9c]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis_subsp._subtilis_str._168 Bacillus subtilis subsp. subtilis str. 168]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4I9C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4I9C FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4i9e|4i9e]]</td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.1&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BSU37460, rapF, ywhJ ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=224308 BACSU])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4i9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4i9c OCA], [https://pdbe.org/4i9c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4i9c RCSB], [https://www.ebi.ac.uk/pdbsum/4i9c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4i9c ProSAT]</span></td></tr>
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<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=4i9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4i9c OCA], [http://pdbe.org/4i9c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4i9c RCSB], [http://www.ebi.ac.uk/pdbsum/4i9c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4i9c ProSAT]</span></td></tr>
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</table>
</table>
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<div style="background-color:#fffaf0;">
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== Function ==
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== Publication Abstract from PubMed ==
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[https://www.uniprot.org/uniprot/RAPF_BACSU RAPF_BACSU]
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Two-component systems, composed of a sensor histidine kinase and an effector response regulator (RR), are the main signal transduction devices in bacteria. In Bacillus, the Rap protein family modulates complex signaling processes mediated by two-component systems, such as competence, sporulation, or biofilm formation, by inhibiting the RR components involved in these pathways. Despite the high degree of sequence homology, Rap proteins exert their activity by two completely different mechanisms of action: inducing RR dephosphorylation or blocking RR binding to its target promoter. However the regulatory mechanism involving Rap proteins is even more complex since Rap activity is antagonized by specific signaling peptides (Phr) through a mechanism that remains unknown at the molecular level. Using X-ray analyses, we determined the structure of RapF, the anti-activator of competence RR ComA, alone and in complex with its regulatory peptide PhrF. The structural and functional data presented herein reveal that peptide PhrF blocks the RapF-ComA interaction through an allosteric mechanism. PhrF accommodates in the C-terminal tetratricopeptide repeat domain of RapF by inducing its constriction, a conformational change propagated by a pronounced rotation to the N-terminal ComA-binding domain. This movement partially disrupts the ComA binding site by triggering the ComA disassociation, whose interaction with RapF is also sterically impaired in the PhrF-induced conformation of RapF. Sequence analyses of the Rap proteins, guided by the RapF-PhrF structure, unveil the molecular basis of Phr recognition and discrimination, allowing us to relax the Phr specificity of RapF by a single residue change.
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Structural basis of Rap phosphatase inhibition by Phr peptides.,Gallego del Sol F, Marina A PLoS Biol. 2013;11(3):e1001511. doi: 10.1371/journal.pbio.1001511. Epub 2013 Mar , 19. PMID:23526880<ref>PMID:23526880</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 4i9c" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Bacsu]]
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[[Category: Bacillus subtilis subsp. subtilis str. 168]]
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[[Category: Gallego, F]]
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[[Category: Large Structures]]
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[[Category: Marina, A]]
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[[Category: Gallego F]]
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[[Category: Coma inhibitor]]
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[[Category: Marina A]]
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[[Category: Gene regulation]]
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[[Category: Phrf]]
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Current revision

Crystal structure of aspartyl phosphate phosphatase F from B.subtilis in complex with its inhibitory peptide

PDB ID 4i9c

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