1omw

From Proteopedia

(Difference between revisions)

Revision as of 07:25, 15 February 2018

Crystal Structure of the complex between G Protein-Coupled Receptor Kinase 2 and Heterotrimeric G Protein beta 1 and gamma 2 subunits

Structural highlights

1omw is a 3 chain structure with sequence from Bovin. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Gene:	GRK2 (BOVIN), GNB1 (BOVIN), GNG2 (BOVIN)
Activity:	[Beta-adrenergic-receptor_kinase [Beta-adrenergic-receptor] kinase], with EC number 2.7.11.15
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ARBK1_BOVIN] Specifically phosphorylates the agonist-occupied form of the beta-adrenergic and closely related receptors, probably inducing a desensitization of them. Key regulator of LPAR1 signaling. Competes with RALA for binding to LPAR1 thus affecting the signaling properties of the receptor. Desensitizes LPAR1 and LPAR2 in a phosphorylation-independent manner (By similarity). [GBG2_BOVIN] Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction. [GBB1_BOVIN] Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The phosphorylation of heptahelical receptors by heterotrimeric guanine nucleotide-binding protein (G protein)-coupled receptor kinases (GRKs) is a universal regulatory mechanism that leads to desensitization of G protein signaling and to the activation of alternative signaling pathways.We determined the crystallographic structure of bovine GRK2 in complex with G protein beta1gamma2 subunits.Our results show how the three domains of GRK2-the RGS (regulator of G protein signaling) homology, protein kinase, and pleckstrin homology domains-integrate their respective activities and recruit the enzyme to the cell membrane in an orientation that not only facilitates receptor phosphorylation, but also allows for the simultaneous inhibition of signaling by Galpha and Gbetagamma subunits.

Keeping G proteins at bay: a complex between G protein-coupled receptor kinase 2 and Gbetagamma.,Lodowski DT, Pitcher JA, Capel WD, Lefkowitz RJ, Tesmer JJ Science. 2003 May 23;300(5623):1256-62. PMID:12764189^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Lodowski DT, Pitcher JA, Capel WD, Lefkowitz RJ, Tesmer JJ. Keeping G proteins at bay: a complex between G protein-coupled receptor kinase 2 and Gbetagamma. Science. 2003 May 23;300(5623):1256-62. PMID:12764189 doi:http://dx.doi.org/10.1126/science.1082348

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1omw"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the complex between G Protein-Coupled Receptor Kinase 2 and Heterotrimeric G Protein beta 1 and gamma 2 subunits==
 <StructureSection load='1omw' size='340' side='right' caption='[[1omw]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GRK2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN]), GNB1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN]), GNG2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/[Beta-adrenergic-receptor]_kinase [Beta-adrenergic-receptor] kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.15 2.7.11.15] </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=1omw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1omw OCA], [http://pdbe.org/1omw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1omw RCSB], [http://www.ebi.ac.uk/pdbsum/1omw PDBsum]</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=1omw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1omw OCA], [http://pdbe.org/1omw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1omw RCSB], [http://www.ebi.ac.uk/pdbsum/1omw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1omw ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/om/1omw_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/om/1omw_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 31: / Line 32: @@
 ==See Also==
-*[[Beta-adrenergic receptor kinase|Beta-adrenergic receptor kinase]]
-*[[Guanine nucleotide-binding protein|Guanine nucleotide-binding protein]]
 *[[Transducin|Transducin]]
 == References ==

1omw

From Proteopedia

Revision as of 07:25, 15 February 2018

Crystal Structure of the complex between G Protein-Coupled Receptor Kinase 2 and Heterotrimeric G Protein beta 1 and gamma 2 subunits

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox