3syn: Difference between revisions
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< | ==Crystal structure of FlhF in complex with its activator== | ||
<StructureSection load='3syn' size='340' side='right'caption='[[3syn]], [[Resolution|resolution]] 3.06Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3syn]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3SYN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3SYN 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]] 3.063Å</td></tr> | |||
-- | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AF3:ALUMINUM+FLUORIDE'>AF3</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=3syn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3syn OCA], [https://pdbe.org/3syn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3syn RCSB], [https://www.ebi.ac.uk/pdbsum/3syn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3syn ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/FLHF_BACSU FLHF_BACSU] Necessary for flagellar biosynthesis. May be involved in translocation of the flagellum. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Small G proteins have key roles in signal transduction pathways. They are switched from the signaling 'on' to the non-signaling 'off' state when GTPase-activating proteins (GAPs) provide a catalytic residue. The ancient signal recognition particle (SRP)-type GTPases form GTP-dependent homo- and heterodimers and deviate from the canonical switch paradigm in that no GAPs have been identified. Here we show that the YlxH protein activates the SRP-GTPase FlhF. The crystal structure of the Bacillus subtilis FlhF-effector complex revealed that the effector does not contribute a catalytic residue but positions the catalytic machinery already present in SRP-GTPases. We provide a general concept that might also apply to the RNA-driven activation of the universally conserved, co-translational protein-targeting machinery comprising the SRP-GTPases Ffh and FtsY. Our study exemplifies the evolutionary transition from RNA- to protein-driven activation in SRP-GTPases and suggests that the current view on SRP-mediated protein targeting is incomplete. | |||
Structural basis for the molecular evolution of SRP-GTPase activation by protein.,Bange G, Kummerer N, Grudnik P, Lindner R, Petzold G, Kressler D, Hurt E, Wild K, Sinning I Nat Struct Mol Biol. 2011 Nov 6;18(12):1376-80. doi: 10.1038/nsmb.2141. PMID:22056770<ref>PMID:22056770</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3syn" style="background-color:#fffaf0;"></div> | |||
== | |||
==See Also== | ==See Also== | ||
*[[GTP-binding protein|GTP-binding protein]] | *[[Flagellar biosynthetic protein|Flagellar biosynthetic protein]] | ||
*[[Flagellar protein 3D structures|Flagellar protein 3D structures]] | |||
== | *[[GTP-binding protein 3D structures|GTP-binding protein 3D structures]] | ||
< | == References == | ||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Bacillus subtilis]] | [[Category: Bacillus subtilis]] | ||
[[Category: Bange | [[Category: Large Structures]] | ||
[[Category: Kuemmerer | [[Category: Bange G]] | ||
[[Category: Sinning | [[Category: Kuemmerer N]] | ||
[[Category: Wild | [[Category: Sinning I]] | ||
[[Category: Wild K]] | |||
Latest revision as of 10:17, 13 August 2026
Crystal structure of FlhF in complex with its activator
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