Wnt signaling pathway

The Wnt signaling pathways are a group of signal transduction pathways made of proteins that pass signals into a cell through cell surface receptors. Three Wnt signaling pathways have been characterized: the canonical Wnt pathway, the noncanonical planar cell polarity pathway and the noncanonical Wnt/calcium pathway. All three pathways are activated by binding a Wnt-protein ligand to a Frizzled family receptor, which passes the biological signal to the protein dishevelled inside the cell. The canonical Wnt pathway leads to regulation of gene transcription. The noncanonical planar cell polarity pathway regulates the cytoskeleton that is responsible for the shape of the cell. The noncanonical Wnt/calcium pathway regulates calcium inside the cell. Wnt signaling pathways use either nearby cell-cell communication (paracrine) or same-cell communication (autocrine). They are highly evolutionarily conserved in animals, which means they are similar across animal species from fruit flies to humans.

Wingless (book)

Wingless: A Fairly Weird Fairy Tale is a 2008 children's fairy tale book by Indian author Paro Anand. The book has "equally weird illustrations" in black and white by Atanu Roy.

Plot summary

The story is about a girl called Chutki. She is born wingless, though she's a princess, the much awaited baby of the King and Queen of the Heavens. She is rejected by the angels who are the citizens of the Heavens. Suspense continues when Chutki and her parents find a new home for her on Earth. Chutki's parents now must find her a home which is not too little and nor too big.

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