Intron retention of an adhesion GPCR generates 1TM isoforms required for 7TM-GPCR function

Protocol for extracellular recordings of mechanically stimulated pentascolopidial chordotonal neurons in Drosophila larvae

Chordotonal organs are sensory structures containing ciliated neurons specialized in detecting mechanical forces. Here, we present a protocol for recording the neuronal activity of mechanically stimulated pentascolopidial chordotonal organs (lch5) of Drosophila larvae. We describe steps for dissecting larvae, measuring electrical activity of chordotonal neurons, and quantifying action currents. This protocol is useful for studying the biology of larval lch5 neurons, as well as the molecular mechanisms and components that contribute to their mechanosensitive properties. For complete details on the use and execution of this protocol, please refer to Bormann et al.1.

Protocol to study the effects of mutations near splicing sites on pre-mRNA splicing

Mutations at RNA splicing sites or regulatory elements can alter splicing efficiency or patterns, affecting RNA functionality and tissue-specific expression. Here, we present a protocol to study the impact of mutations near splicing sites on precursor mRNA (pre-mRNA) splicing. We describe steps for constructing plasmids by cloning the target gene into the pEGFP-N1 vector, performing site-directed mutagenesis, and transiently transfecting HEK293 cells. We then detail procedures for conducting mini-gene splicing assays to analyze splicing patterns influenced by mutations. For complete details on the use and execution of this protocol, please refer to Peng et al.1.