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- W3204788202 abstract "Small Open Reading Frames (smORFs) coding for peptides of less than 100 amino-acids are an enigmatic and pervasive gene class, found in the tens of thousands in metazoan genomes. Here we reveal a short 80 amino-acid peptide (Pegasus) which enhances Wingless/Wnt1 protein short-range diffusion and signalling. During Drosophila wing development, Wingless has sequential functions, including late induction of proneural gene expression and wing margin development. Pegasus mutants produce wing margin defects and proneural expression loss similar to those of Wingless. Pegasus is secreted, and co-localizes and co-immunoprecipitates with Wingless, suggesting their physical interaction. Finally, measurements of fixed and in-vivo Wingless gradients support that Pegasus increases Wingless diffusion in order to enhance its signalling. Our results unveil a new element in Wingless signalling and clarify the patterning role of Wingless diffusion, while corroborating the link between small open reading frame peptides, and regulation of known proteins with membrane-related functions." @default.
- W3204788202 created "2021-10-11" @default.
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- W3204788202 date "2021-09-27" @default.
- W3204788202 modified "2023-10-02" @default.
- W3204788202 title "Pegasus, a small extracellular peptide enhancing short-range diffusion of Wingless" @default.
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- W3204788202 doi "https://doi.org/10.1038/s41467-021-25785-z" @default.
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