Brian Kobilka

Postdoctoral Advisees

Ka Young Chung, Juan Jose Fung, Soren Rasmussen, Daniel Rosenbaum, Cheng Zhang, Yaozhong Zou

Web Site Links

• Personal Web site

Industry Relationships

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Research Interests

My laboratory is involved in studying several aspects of adrenergic receptor biology. Adrenergic receptors form the interface between the sympathetic nervous system and the cardiovascular system and play a critical role in the regulation of cardiovascular function. Specific projects include:

1- RECEPTOR STRUCTURE: We are interested in understanding the three dimensional structure of adrenergic receptors and learning about the conformational changes that mediate signal transduction. We are taking several experimental approaches including mutagenesis, biochemical, and biophysical studies.

2-INTRACELLULAR TRAFFICKING OF ADRENERGIC RECEPTORS: The function of receptors can be modulated by changes in receptor structure (phosphorylation) and by changes in subcellular localization. We are using immunocytochemical approaches to study the targeting of receptors to specific subcellular domains and agonist mediated redistribution of receptors. Our goal is to determine the functional significance of differences in targeting and trafficking that we have observed in several adrenergic receptors, and to identify cellular proteins that mediate receptor trafficking.

3-PHYSIOLOGIC RELEVANCE OF ADRENERGIC RECEPTOR SUBTYPE DIVERSITY: Multiple closely related subtypes of adrenergic receptors have been identified through cloning studies. We are using targeted gene modification in mice to study the physiologic role of these closely related subtypes. We have disrupted the genes for five adrenergic receptors (alpha 2a, alpha 2b, alpha 2c, beta 1, and beta2) and are investigating the consequence of these disruptions on neural and cardiovascular physiology.

Publications

• The effect of ligand efficacy on the formation and stability of a GPCR-G protein complex. Yao XJ, Vélez Ruiz G, Whorton MR, Rasmussen SG, DeVree BT, Deupi X, Sunahara RK, Kobilka B. Proc Natl Acad Sci U S A. 2009; 106 (23): 9501-6
• The structure and function of G-protein-coupled receptors. Rosenbaum DM, Rasmussen SG, Kobilka BK. Nature. 2009; 459 (7245): 356-63
• Ligand-regulated oligomerization of beta(2)-adrenoceptors in a model lipid bilayer. Fung JJ, Deupi X, Pardo L, Yao XJ, Velez-Ruiz GA, Devree BT, Sunahara RK, Kobilka BK. EMBO J. 2009; 28 (21): 3315-28
• Structural insights into G-protein-coupled receptor activation. Weis WI, Kobilka BK. Curr Opin Struct Biol. 2008; 18 (6): 734-40
• New G-protein-coupled receptor crystal structures: insights and limitations. Kobilka B, Schertler GF. Trends Pharmacol Sci. 2008; 29 (2): 79-83