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Searching the GPCR Heterodimer Network (GPCR-hetnet) Database for Information to Deduce the Receptor–Receptor Interface and Its Role in the Integration of Receptor Heterodimer Functions

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Receptor-Receptor Interactions in the Central Nervous System

Abstract

The G protein-coupled receptor heterocomplex network database (GPCR-hetnet) is a database designed to store information on GPCR heteroreceptor complexes and their allosteric receptor–receptor interactions. It is an expert-authored and peer-reviewed, curated collection of well-documented GPCR–GPCR interactions that span the gamut from classical GPCR–GPCR interactions to more complex receptor–receptor interactions (GPCR-Receptor Tyrosine Kinase and GPCR-ionotropic receptor/ligand gated ion channel). Although GPCR-hetnet contains interactions among GPCR from several different species, the curators have initially focused on receptor–receptor interactions in humans. Currently (August 2017) GPCR-hetnet contains information on 250 receptors (192 GPCR, 52 RTK, and 6 ionotropic receptors) and >1023 interactions. The GPCR-hetnet provides four searchable datasets: the hetnet, the non-hetnet, the rtknet, and the ionnet. Other supporting datasets include information about receptors that are present in GPCR-hetnet such as literature citations. This chapter describes in a basic protocol how to use, navigate, and browse through the GPCR-hetnet database to identify the clusters in which a receptor protomer of interest is involved, while further applicability are also described and introduced.

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Acknowledgments

The work was supported by the Swedish Medical Research Council (62X-00715-50-3) to K.F., by ParkinsonFonden 2015, AFA Försäkring (130328) to K.F., and by Hjärnfonden (FO2016-0302) and Karolinska Institutet Forskningsstiftelser (2016–2017) to D.O.B-E. D.O.B-E. belongs to the “Academia de Biólogos Cubanos” group.

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Brito, I. et al. (2018). Searching the GPCR Heterodimer Network (GPCR-hetnet) Database for Information to Deduce the Receptor–Receptor Interface and Its Role in the Integration of Receptor Heterodimer Functions. In: FUXE, K., Borroto-Escuela, D. (eds) Receptor-Receptor Interactions in the Central Nervous System. Neuromethods, vol 140. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-8576-0_18

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