3c4x: Difference between revisions

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[[Image:3c4x.png|left|200px]]


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==Crystal Structure of G protein coupled receptor kinase 1 bound to ATP and magnesium chloride at 2.9A==
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<StructureSection load='3c4x' size='340' side='right'caption='[[3c4x]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[3c4x]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C4X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3C4X FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.9&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
{{STRUCTURE_3c4x|  PDB=3c4x  |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3c4x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3c4x OCA], [https://pdbe.org/3c4x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3c4x RCSB], [https://www.ebi.ac.uk/pdbsum/3c4x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3c4x ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GRK1_BOVIN GRK1_BOVIN] Retina-specific kinase involved in the signal turnoff via phosphorylation of rhodopsin (RHO), the G protein- coupled receptor that initiates the phototransduction cascade (PubMed:12686556, PubMed:16675451, PubMed:21299498). This rapid desensitization is essential for scotopic vision and permits rapid adaptation to changes in illumination (By similarity). May play a role in the maintenance of the outer nuclear layer in the retina (By similarity).[UniProtKB:Q9WVL4]<ref>PMID:12686556</ref> <ref>PMID:16675451</ref> <ref>PMID:21299498</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c4/3c4x_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3c4x ConSurf].
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== Publication Abstract from PubMed ==
G protein-coupled receptor (GPCR) kinases (GRKs) phosphorylate activated heptahelical receptors, leading to their uncoupling from G proteins. Here we report six crystal structures of rhodopsin kinase (GRK1), revealing not only three distinct nucleotide-binding states of a GRK but also two key structural elements believed to be involved in the recognition of activated GPCRs. The first is the C-terminal extension of the kinase domain, which was observed in all nucleotide-bound GRK1 structures. The second is residues 5-30 of the N terminus, observed in one of the GRK1.(Mg2+)2.ATP structures. The N terminus was also clearly phosphorylated, leading to the identification of two novel phosphorylation sites by mass spectral analysis. Co-localization of the N terminus and the C-terminal extension near the hinge of the kinase domain suggests that activated GPCRs stimulate kinase activity by binding to this region to facilitate full closure of the kinase domain.


===Crystal Structure of G protein coupled receptor kinase 1 bound to ATP and magnesium chloride at 2.9A===
Structures of rhodopsin kinase in different ligand states reveal key elements involved in G protein-coupled receptor kinase activation.,Singh P, Wang B, Maeda T, Palczewski K, Tesmer JJ J Biol Chem. 2008 May 16;283(20):14053-62. Epub 2008 Mar 13. PMID:18339619<ref>PMID:18339619</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
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*[[Rhodopsin kinase|Rhodopsin kinase]]
(as it appears on PubMed at http://www.pubmed.gov), where 18339619 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_18339619}}
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</StructureSection>
==About this Structure==
3C4X is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C4X OCA].
 
==Reference==
<ref group="xtra">PMID:18339619</ref><references group="xtra"/>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Rhodopsin kinase]]
[[Category: Large Structures]]
[[Category: Singh, P.]]
[[Category: Singh P]]
[[Category: Tesmer, J J.G.]]
[[Category: Tesmer JJG]]
[[Category: Atp]]
[[Category: Atp-binding]]
[[Category: Autophosphorylation]]
[[Category: G protein coupled receptor kinase]]
[[Category: Grk]]
[[Category: Grk1]]
[[Category: Lipoprotein]]
[[Category: Membrane]]
[[Category: Methylation]]
[[Category: Nucleotide-binding]]
[[Category: P-loop]]
[[Category: Phosphoprotein]]
[[Category: Prenylation]]
[[Category: Rgs homology domain]]
[[Category: Rhodopsin kinase]]
[[Category: Ser/thr kinase]]
[[Category: Serine/threonine-protein kinase]]
[[Category: Transferase]]
 
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