2pbi: Difference between revisions
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'''The multifunctional nature of Gbeta5/RGS9 revealed from its crystal structure''' | '''The multifunctional nature of Gbeta5/RGS9 revealed from its crystal structure''' | ||
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[[Category: Snyder, J T.]] | [[Category: Snyder, J T.]] | ||
[[Category: Sondek, J.]] | [[Category: Sondek, J.]] | ||
[[Category: | [[Category: Beta propeller]] | ||
[[Category: | [[Category: Dep domain]] | ||
[[Category: | [[Category: Dhex domain]] | ||
[[Category: | [[Category: Ggl domain]] | ||
[[Category: | [[Category: Helix wrap]] | ||
[[Category: | [[Category: Rgs domain]] | ||
[[Category: | [[Category: Signaling protein]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 12:46:54 2008'' | |||
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Revision as of 09:46, 4 May 2008
The multifunctional nature of Gbeta5/RGS9 revealed from its crystal structure
Overview
Regulators of G-protein signaling (RGS) proteins enhance the intrinsic GTPase activity of G protein alpha (Galpha) subunits and are vital for proper signaling kinetics downstream of G protein-coupled receptors (GPCRs). R7 subfamily RGS proteins specifically and obligately dimerize with the atypical G protein beta5 (Gbeta5) subunit through an internal G protein gamma (Ggamma)-subunit-like (GGL) domain. Here we present the 1.95-A crystal structure of the Gbeta5-RGS9 complex, which is essential for normal visual and neuronal signal transduction. This structure reveals a canonical RGS domain that is functionally integrated within a molecular complex that is poised for integration of multiple steps during G-protein activation and deactivation.
About this Structure
2PBI is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.
Reference
Crystal structure of the multifunctional Gbeta5-RGS9 complex., Cheever ML, Snyder JT, Gershburg S, Siderovski DP, Harden TK, Sondek J, Nat Struct Mol Biol. 2008 Feb;15(2):155-62. Epub 2008 Jan 20. PMID:18204463 Page seeded by OCA on Sun May 4 12:46:54 2008