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| | <StructureSection load='5h9b' size='340' side='right'caption='[[5h9b]], [[Resolution|resolution]] 2.25Å' scene=''> | | <StructureSection load='5h9b' size='340' side='right'caption='[[5h9b]], [[Resolution|resolution]] 2.25Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5h9b]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5H9B OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5H9B FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5h9b]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5H9B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5H9B FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AN2:AMP+PHOSPHORAMIDATE'>AN2</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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]] 2.25Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CaMKII, CaMKII-RA, CG18069, Dmel_CG18069 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME]), eag, CG10952 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AN2:AMP+PHOSPHORAMIDATE'>AN2</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=5h9b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5h9b OCA], [http://pdbe.org/5h9b PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5h9b RCSB], [http://www.ebi.ac.uk/pdbsum/5h9b PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5h9b ProSAT]</span></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=5h9b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5h9b OCA], [https://pdbe.org/5h9b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5h9b RCSB], [https://www.ebi.ac.uk/pdbsum/5h9b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5h9b ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/KCNAE_DROME KCNAE_DROME]] Structural component of a potassium channel. Mediates the potassium permeability of membranes; potassium current is regulated by CaMKII and CASK. Has a role in growth of the perineurial glial layer of the larval peripheral nerve.<ref>PMID:11517334</ref> <ref>PMID:11980904</ref> <ref>PMID:15901771</ref> <ref>PMID:1840699</ref> | + | [https://www.uniprot.org/uniprot/KCC2A_DROME KCC2A_DROME] A key regulator of plasticity in synaptic physiology and behavior, alterations in its activity produce pleiotrophic effects that involve synaptic transmission and development as well as various aspects of behavior. Directly modulates eag potassium channels.<ref>PMID:11980904</ref> <ref>PMID:14687552</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | ==See Also== | | ==See Also== |
| | *[[Calcium/calmodulin dependent protein kinase 3D structures|Calcium/calmodulin dependent protein kinase 3D structures]] | | *[[Calcium/calmodulin dependent protein kinase 3D structures|Calcium/calmodulin dependent protein kinase 3D structures]] |
| - | *[[Potassium Channel|Potassium Channel]] | + | *[[Potassium channel 3D structures|Potassium channel 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Drome]] | + | [[Category: Drosophila melanogaster]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Castro-Rodrigues, A F]] | + | [[Category: Castro-Rodrigues AF]] |
| - | [[Category: Morais-Cabral, J H]] | + | [[Category: Morais-Cabral JH]] |
| - | [[Category: Complex]]
| + | |
| - | [[Category: Potassium channel]]
| + | |
| - | [[Category: Protein kinase]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
KCC2A_DROME A key regulator of plasticity in synaptic physiology and behavior, alterations in its activity produce pleiotrophic effects that involve synaptic transmission and development as well as various aspects of behavior. Directly modulates eag potassium channels.[1] [2]
Publication Abstract from PubMed
The Drosophila EAG (dEAG) potassium channel is the founding member of the superfamily of KNCH channels, which are involved in cardiac repolarization, neuronal excitability and cellular proliferation. In flies, dEAG is involved in regulation of neuron firing and assembles with CaMKII to form a complex implicated in memory formation. We have characterized the interaction between the kinase domain of CaMKII and a 53-residue fragment of the dEAG channel that includes a canonical CaMKII recognition sequence. Crystal structures together with biochemical/biophysical analysis show a substrate-kinase complex with an unusually tight and extensive interface that appears to be strengthened by phosphorylation of the channel fragment. Electrophysiological recordings show that catalytically active CaMKII is required to observe active dEAG channels. A previously identified phosphorylation site in the recognition sequence is not the substrate for this crucial kinase activity, but rather contributes importantly to the tight interaction of the kinase with the channel. The available data suggest that the dEAG channel is a docking platform for the kinase and that phosphorylation of the channel's kinase recognition sequence modulates the strength of the interaction between the channel and the kinase.
The Interaction between the Drosophila EAG Potassium Channel and the Protein Kinase CaMKII Involves an Extensive Interface at the Active Site of the Kinase.,Castro-Rodrigues AF, Zhao Y, Fonseca F, Gabant G, Cadene M, Robertson GA, Morais-Cabral JH J Mol Biol. 2018 Dec 7;430(24):5029-5049. doi: 10.1016/j.jmb.2018.10.015. Epub, 2018 Oct 28. PMID:30381148[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Wang Z, Wilson GF, Griffith LC. Calcium/calmodulin-dependent protein kinase II phosphorylates and regulates the Drosophila eag potassium channel. J Biol Chem. 2002 Jul 5;277(27):24022-9. Epub 2002 Apr 29. PMID:11980904 doi:http://dx.doi.org/10.1074/jbc.M201949200
- ↑ Lu CS, Hodge JJ, Mehren J, Sun XX, Griffith LC. Regulation of the Ca2+/CaM-responsive pool of CaMKII by scaffold-dependent autophosphorylation. Neuron. 2003 Dec 18;40(6):1185-97. PMID:14687552
- ↑ Castro-Rodrigues AF, Zhao Y, Fonseca F, Gabant G, Cadene M, Robertson GA, Morais-Cabral JH. The Interaction between the Drosophila EAG Potassium Channel and the Protein Kinase CaMKII Involves an Extensive Interface at the Active Site of the Kinase. J Mol Biol. 2018 Dec 7;430(24):5029-5049. doi: 10.1016/j.jmb.2018.10.015. Epub, 2018 Oct 28. PMID:30381148 doi:http://dx.doi.org/10.1016/j.jmb.2018.10.015
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