6et7: Difference between revisions
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==Activated heterodimer of the bacteriophytochrome regulated diguanylyl cyclase variant - S505V A526V - from Idiomarina species A28L== | |||
<StructureSection load='6et7' size='340' side='right'caption='[[6et7]], [[Resolution|resolution]] 2.85Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6et7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Idiomarina_sp._A28L Idiomarina sp. A28L]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6ET7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6ET7 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]] 2.852Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=LBV:3-[2-[(Z)-[3-(2-CARBOXYETHYL)-5-[(Z)-(4-ETHENYL-3-METHYL-5-OXIDANYLIDENE-PYRROL-2-YLIDENE)METHYL]-4-METHYL-PYRROL-1-IUM-2-YLIDENE]METHYL]-5-[(Z)-[(3E)-3-ETHYLIDENE-4-METHYL-5-OXIDANYLIDENE-PYRROLIDIN-2-YLIDENE]METHYL]-4-METHYL-1H-PYRROL-3-YL]PROPANOIC+ACID'>LBV</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=6et7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6et7 OCA], [https://pdbe.org/6et7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6et7 RCSB], [https://www.ebi.ac.uk/pdbsum/6et7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6et7 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/F7RW09_9GAMM F7RW09_9GAMM] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Organisms adapt to environmental cues using diverse signaling networks. In order to sense and integrate light for regulating various biological functions, photoreceptor proteins have evolved in a modular way. This modularity is targeted in the development of optogenetic tools enabling the control of cellular events with high spatiotemporal precision. However, the limited understanding of signaling mechanisms impedes the rational design of innovative photoreceptor-effector couples. Here we reveal molecular details of signal transduction in phytochrome-regulated diguanylyl-cyclases. Asymmetric structural changes of the full-length homodimer result in a functional heterodimer featuring two different photoactivation states. Structural changes around the cofactors result in a quasi-translational rearrangement of the distant coiled-coil sensor-effector linker. Eventually, this regulates enzymatic activity by modulating the dimer interface of the output domains. Considering the importance of phytochrome heterodimerization in plant signaling, our mechanistic details of asymmetric photoactivation in a bacterial system reveal novel aspects of the evolutionary adaptation of phytochromes. | |||
Asymmetric activation mechanism of a homodimeric red light regulated photoreceptor.,Gourinchas G, Heintz U, Winkler A Elife. 2018 Jun 5;7. pii: 34815. doi: 10.7554/eLife.34815. PMID:29869984<ref>PMID:29869984</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 6et7" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Diguanylate cyclase|Diguanylate cyclase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Idiomarina sp. A28L]] | |||
[[Category: Large Structures]] | |||
[[Category: Gourinchas G]] | |||
[[Category: Winkler A]] | |||
Latest revision as of 11:59, 9 October 2024
Activated heterodimer of the bacteriophytochrome regulated diguanylyl cyclase variant - S505V A526V - from Idiomarina species A28LActivated heterodimer of the bacteriophytochrome regulated diguanylyl cyclase variant - S505V A526V - from Idiomarina species A28L
Structural highlights
FunctionPublication Abstract from PubMedOrganisms adapt to environmental cues using diverse signaling networks. In order to sense and integrate light for regulating various biological functions, photoreceptor proteins have evolved in a modular way. This modularity is targeted in the development of optogenetic tools enabling the control of cellular events with high spatiotemporal precision. However, the limited understanding of signaling mechanisms impedes the rational design of innovative photoreceptor-effector couples. Here we reveal molecular details of signal transduction in phytochrome-regulated diguanylyl-cyclases. Asymmetric structural changes of the full-length homodimer result in a functional heterodimer featuring two different photoactivation states. Structural changes around the cofactors result in a quasi-translational rearrangement of the distant coiled-coil sensor-effector linker. Eventually, this regulates enzymatic activity by modulating the dimer interface of the output domains. Considering the importance of phytochrome heterodimerization in plant signaling, our mechanistic details of asymmetric photoactivation in a bacterial system reveal novel aspects of the evolutionary adaptation of phytochromes. Asymmetric activation mechanism of a homodimeric red light regulated photoreceptor.,Gourinchas G, Heintz U, Winkler A Elife. 2018 Jun 5;7. pii: 34815. doi: 10.7554/eLife.34815. PMID:29869984[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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