منابع مشابه
Neuropeptide GPCRs in C. elegans
Like most organisms, the nematode Caenorhabditis elegans relies heavily on neuropeptidergic signaling. This tiny animal represents a suitable model system to study neuropeptidergic signaling networks with single cell resolution due to the availability of powerful molecular and genetic tools. The availability of the worm's complete genome sequence allows researchers to browse through it, uncover...
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G protein-coupled receptors (GPCRs) represent the single largest family of plasma membrane receptors, encompassing about 860 members in humans. During the last decades, considerable progress has been made regarding the biochemical identification, signaling mechanisms, allosteric modulation, structural characterization, and pathophysiological implication of GPCRs, which are considered as major t...
متن کاملLarge-Scale Combinatorial Deorphanization of Platynereis Neuropeptide GPCRs.
Neuropeptides, representing the largest class of neuromodulators, commonly signal by G-protein-coupled receptors (GPCRs). While the neuropeptide repertoire of several metazoans has been characterized, many GPCRs are orphans. Here, we develop a strategy to identify GPCR-peptide pairs using combinatorial screening with complex peptide mixtures. We screened 126 neuropeptides against 87 GPCRs of th...
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Neurotransmitter released from presynaptic terminals activates both ligand-gated ion channels (ionotropic receptors) and a variety of G protein-coupled receptors (GPCRs). These neurotransmitter receptors are expressed on both preand postsynaptic cells. Thus, each neurotransmitter acts on multiple receptor classes, generating a large repertoire of physiological responses. The impact of many iono...
متن کاملSerotonin and the Neuropeptide PDF Initiate and Extend Opposing Behavioral States in C. elegans
Foraging animals have distinct exploration and exploitation behaviors that are organized into discrete behavioral states. Here, we characterize a neuromodulatory circuit that generates long-lasting roaming and dwelling states in Caenorhabditis elegans. We find that two opposing neuromodulators, serotonin and the neuropeptide pigment dispersing factor (PDF), each initiate and extend one behavior...
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ژورنال
عنوان ژورنال: Frontiers in Endocrinology
سال: 2012
ISSN: 1664-2392
DOI: 10.3389/fendo.2012.00167