The solution structure and dynamics of the pleckstrin homology domain of G protein-coupled receptor kinase 2 (beta-adrenergic receptor kinase 1). A binding partner of Gbetagamma subunits.Fushman, D., Najmabadi-Haske, T., Cahill, S., Zheng, J., LeVine 3rd., H., Cowburn, D.
(1998) J.Biol.Chem. 273: 2835-2843
- PubMed: 9446593
- PubMed Abstract:
- Binding of G Protein Beta Gamma-Subunits to Pleckstrin Homology Domains
Touhara, K.,Inglese, J.,Pitcher, J.A.,Shaw, G.,Lefkowitz, R.J.
(1994) J.Biol.Chem. 269: 10217
- Structural Studies on the Ph Domains of Dbl, SOS1, Irs-1, and Beta Ark1 and Their Differential Binding to G Beta Gamma Subunits
Mahadevan, D.,Thanki, N.,Singh, J.,Mcphie, P.,Zangrilli, D.,Wang, L.M.,Guerrero, C.,Levine III, H.,Humblet, C.,Saldanha, J.,Gutkind, J.S.,Najmabadi-Haske, T.
(1995) Biochemistry 34: 9111
The solution structure of an extended pleckstrin homology (PH) domain from the beta-adrenergic receptor kinase is obtained by high resolution NMR. The structure establishes that the beta-adrenergic receptor kinase extended PH domain has the same fold ...
The solution structure of an extended pleckstrin homology (PH) domain from the beta-adrenergic receptor kinase is obtained by high resolution NMR. The structure establishes that the beta-adrenergic receptor kinase extended PH domain has the same fold and topology as other PH domains, and there are several unique features, most notably an extended C-terminal alpha-helix that behaves as a molten helix, and a surface charge polarity that is extensively modified by positive residues in the extended alpha-helix and the C terminus. These observations complement biochemical evidence that the C-terminal portion of this PH domain participates in protein-protein interactions with Gbetagamma subunits. This suggests that the C-terminal segment of the PH domain may function to mediate protein-protein interactions with the targets of PH domains.
Laboratory of Physical Biochemistry, The Rockefeller University, New York, New York 10021-6399, USA.