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| | <StructureSection load='6hc1' size='340' side='right'caption='[[6hc1]], [[Resolution|resolution]] 1.49Å' scene=''> | | <StructureSection load='6hc1' size='340' side='right'caption='[[6hc1]], [[Resolution|resolution]] 1.49Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6hc1]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Bdeba Bdeba]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6HC1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6HC1 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6hc1]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Bdellovibrio_bacteriovorus_HD100 Bdellovibrio bacteriovorus HD100]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6HC1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6HC1 FirstGlance]. <br> |
| - | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</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]] 1.49Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6hbz|6hbz]], [[6hc0|6hc0]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Bd0742 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=264462 BDEBA])</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=6hc1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6hc1 OCA], [https://pdbe.org/6hc1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6hc1 RCSB], [https://www.ebi.ac.uk/pdbsum/6hc1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6hc1 ProSAT]</span></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=6hc1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6hc1 OCA], [http://pdbe.org/6hc1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6hc1 RCSB], [http://www.ebi.ac.uk/pdbsum/6hc1 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6hc1 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q6MPU8_BDEBA Q6MPU8_BDEBA] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bdeba]] | + | [[Category: Bdellovibrio bacteriovorus HD100]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Lovering, A L]] | + | [[Category: Lovering AL]] |
| - | [[Category: Meek, R W]] | + | [[Category: Meek RW]] |
| - | [[Category: C-di-gmp]]
| + | |
| - | [[Category: Diguanylate cyclase]]
| + | |
| - | [[Category: Fha]]
| + | |
| - | [[Category: Ggdef]]
| + | |
| - | [[Category: Signaling protein]]
| + | |
| Structural highlights
Function
Q6MPU8_BDEBA
Publication Abstract from PubMed
The bacterial second messenger cyclic-di-GMP is a widespread, prominent effector of lifestyle change. An example of this occurs in the predatory bacterium Bdellovibrio bacteriovorus, which cycles between free-living and intraperiplasmic phases after entering (and killing) another bacterium. The initiation of prey invasion is governed by DgcB (GGDEF enzyme) that produces cyclic-di-GMP in response to an unknown stimulus. Here, we report the structure of DgcB, and demonstrate that the GGDEF and sensory forkhead-associated (FHA) domains form an asymmetric dimer. Our structures indicate that the FHA domain is a consensus phosphopeptide sensor, and that the ligand for activation is surprisingly derived from the N-terminal region of DgcB itself. We confirm this hypothesis by determining the structure of a FHA:phosphopeptide complex, from which we design a constitutively-active mutant (confirmed via enzyme assays). Our results provide an understanding of the stimulus driving DgcB-mediated prey invasion and detail a unique mechanism of GGDEF enzyme regulation.
Structural basis for activation of a diguanylate cyclase required for bacterial predation in Bdellovibrio.,Meek RW, Cadby IT, Moynihan PJ, Lovering AL Nat Commun. 2019 Sep 9;10(1):4086. doi: 10.1038/s41467-019-12051-6. PMID:31501441[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Meek RW, Cadby IT, Moynihan PJ, Lovering AL. Structural basis for activation of a diguanylate cyclase required for bacterial predation in Bdellovibrio. Nat Commun. 2019 Sep 9;10(1):4086. doi: 10.1038/s41467-019-12051-6. PMID:31501441 doi:http://dx.doi.org/10.1038/s41467-019-12051-6
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