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Hot topics: The orphan GPR139 receptor is activated by peptides

GPR139 is an orphan class A G protein-coupled receptor found mainly in the central nervous system. It has its highest expression in the striatum and hypothalamus, regions regulating locomotion and metabolism, respectively, and it has therefore been suggested as a

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Hot topics: X-ray crystallographic study defines binding domains for Ca2+ antagonist drugs and their molecular mechanism of action

This year witnessed a tremendous progress in our understanding of the structure-function relationship of voltage-gated Ca2+ channels. This is based on the cryo-electron microscopy structure of the rabbit Cav1.1 Ca2+ channel complex at a nominal resolution of 3.6 Å ([1]

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Hot topics: Will the real splice variants please stand up?

The number of alternative mRNA splice forms that map to human protein coding loci has increased to the point that nearly all proteins have such associated database records. This gives rise to the paradox that the gene build pipeline from

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Hot topics: X-ray structure of the endothelin ETB receptor

Endothelin is a peptide that acts via two G-protein coupled receptors. ETA mainly causes vasoconstriction. In contrast ETB  predominantly acts as a beneficial clearing receptor and by the release of endothelium derived relaxing factors, vasodilatation [1,2]. This paper  describes for

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Hot topics: Synthesis and SAR for depsipeptide natural products as selective G protein inhibitors

A team including the Gloriam Group at the University of Copenhagen (also the home of GPCRDB) have paper out in Nature Chemistry reporting the first total synthesis of YM-254890 and FR900359 [1] . These are related cyclic depsipeptide natural products that

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Hot topics: X-ray structure of P2X3 receptor

Extracellular ATP is able to activate two families of cell-surface receptors, one of which is the ligand-gated ion channel family of P2X receptors. This family of cation channels is distinct from the remainder of the ligand-gated ion channels, as they

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Hot topics: High resolution structure of the voltage-gated skeletal muscle Ca2+ channel complex

In a recent article in Nature [1], Wu et al. present the cryo-electron microscopy structure of the rabbit Cav1.1 complex at a nominal resolution of 3.6 Å.

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