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==Crystal Structure of Rad G-domain Q148A-GTP Analog Complex==
==Crystal Structure of Rad G-domain Q148A-GTP Analog Complex==
<StructureSection load='3q7q' size='340' side='right' caption='[[3q7q]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
<StructureSection load='3q7q' size='340' side='right'caption='[[3q7q]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3q7q]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3Q7Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3Q7Q FirstGlance]. <br>
<table><tr><td colspan='2'>[[3q7q]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3Q7Q OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3Q7Q FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</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]] 2.3&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2dpx|2dpx]], [[3q72|3q72]], [[3q7p|3q7p]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">RRAD, RAD ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=3q7q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3q7q OCA], [https://pdbe.org/3q7q PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3q7q RCSB], [https://www.ebi.ac.uk/pdbsum/3q7q PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3q7q 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=3q7q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3q7q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3q7q RCSB], [http://www.ebi.ac.uk/pdbsum/3q7q PDBsum]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/RAD_HUMAN RAD_HUMAN]] May play an important role in cardiac antiarrhythmia via the strong suppression of voltage-gated L-type Ca(2+) currents. Regulates voltage-dependent L-type calcium channel subunit alpha-1C trafficking to the cell membrane (By similarity). Inhibits cardiac hypertrophy through the calmodulin-dependent kinase II (CaMKII) pathway. Inhibits phosphorylation and activation of CAMK2D.<ref>PMID:18056528</ref> 
[https://www.uniprot.org/uniprot/RAD_HUMAN RAD_HUMAN] May play an important role in cardiac antiarrhythmia via the strong suppression of voltage-gated L-type Ca(2+) currents. Regulates voltage-dependent L-type calcium channel subunit alpha-1C trafficking to the cell membrane (By similarity). Inhibits cardiac hypertrophy through the calmodulin-dependent kinase II (CaMKII) pathway. Inhibits phosphorylation and activation of CAMK2D.<ref>PMID:18056528</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The RGK family of small G-proteins, including Rad, Gem, Rem1, and Rem2, is inducibly expressed in various mammalian tissues and interacts with voltage-dependent calcium channels and Rho kinase. Many questions remain regarding their physiological roles and molecular mechanism. Previous crystallographic studies reported RGK G-domain:guanosine di-phosphate structures. To test whether RGK proteins undergo a nucleotide-induced conformational change, we determined the crystallographic structures of Rad:GppNHp and Rem2:GppNHp to 1.7 and 1.8 A resolutions, respectively. Also, we characterized the nucleotide-binding properties and conformations for Gem, Rad, and several structure-based mutants using fluorescence spectroscopy. The results suggest that RGK G-proteins may not behave as Ras-like canonical nucleotide-induced molecular switches. Further, the RGK proteins have differing structures and nucleotide-binding properties, which may have implications for their varied action on effectors.
 
RGK Family G-Domain:GTP Analog Complex Structures and Nucleotide-Binding Properties.,Sasson Y, Navon-Perry L, Huppert D, Hirsch JA J Mol Biol. 2011 Aug 29. PMID:21903096<ref>PMID:21903096</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


==See Also==
==See Also==
*[[GTP-binding protein|GTP-binding protein]]
*[[GTP-binding protein 3D structures|GTP-binding protein 3D structures]]
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Hirsch, J A]]
[[Category: Large Structures]]
[[Category: Navon-Perry, L]]
[[Category: Hirsch JA]]
[[Category: Sasson, Y]]
[[Category: Navon-Perry L]]
[[Category: Cav2 beta]]
[[Category: Sasson Y]]
[[Category: G-domain]]
[[Category: G-protein]]
[[Category: Signaling protein]]

Latest revision as of 14:36, 14 March 2024

Crystal Structure of Rad G-domain Q148A-GTP Analog ComplexCrystal Structure of Rad G-domain Q148A-GTP Analog Complex

Structural highlights

3q7q is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RAD_HUMAN May play an important role in cardiac antiarrhythmia via the strong suppression of voltage-gated L-type Ca(2+) currents. Regulates voltage-dependent L-type calcium channel subunit alpha-1C trafficking to the cell membrane (By similarity). Inhibits cardiac hypertrophy through the calmodulin-dependent kinase II (CaMKII) pathway. Inhibits phosphorylation and activation of CAMK2D.[1]

See Also

References

  1. ↑ Chang L, Zhang J, Tseng YH, Xie CQ, Ilany J, Bruning JC, Sun Z, Zhu X, Cui T, Youker KA, Yang Q, Day SM, Kahn CR, Chen YE. Rad GTPase deficiency leads to cardiac hypertrophy. Circulation. 2007 Dec 18;116(25):2976-83. Epub 2007 Dec 3. PMID:18056528 doi:http://dx.doi.org/10.1161/CIRCULATIONAHA.107.707257

3q7q, resolution 2.30Å

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