ReviewJournal of structural biology2025
Structure and self-association of Arrestin-1.
Review in Journal of structural biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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2 authors.
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Abstract
Arrestins halt cell signaling by binding to phosphorylated activated G protein-coupled receptors. Arrestin-1 binds to rhodopsin, arrestin-4 binds to cone opsins, and arrestins-2,3 bind to the rest of GPCRs. In addition, it has been reported that arrestin-1 is functionally expressed in mouse cone photoreceptors. The structural characterization of arrestins was spearheaded by the elucidation of the crystal structure of bovine arrestin-1. Further progress in arrestin structural biology showed that the general fold of the four vertebrate arrestin subtypes is conserved and that self-association seems to play important physiological roles. In solution, mammalian arrestin-1 has been proposed to exist in a species-dependent equilibrium between monomers, dimers, and tetramers, the activated monomer being the form that binds to photo-activated phosphorylated rhodopsin. However, the nature and function of the oligomers of the different arrestin subtypes are still under debate. This article reviews several structural aspects of arrestin-1 in light of two recent crystal structures of Xenopus arrestin-1, which have provided insights on the structure, self-association, activation, and evolution of arrestins in general, and of arrestin-1 in particular.
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