Patched (Ptc) is a conserved 12-pass transmembrane protein receptor that plays an obligate negative regulatory role in the Hedgehog signaling pathway in insects and vertebrates. Patched is an essential gene in embryogenesis for proper segmentation in the fly embryo, mutations in which may be embryonic lethal. Patched functions as the receptor for the Hedgehog protein and controls its spatial distribution, in part via endocytosis of bound Hedgehog protein, which is then targeted for lysosomal degradation.
Pinnace
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A small vessel propelled by sails or oars, formerly
employed as a tender, or for coast defence; -- called originally,
spynace or spyne.
Pinnace meaning & definition 1 of Pinnace.
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A boat consisting of 2 to 3 masts, bigger than a lifeboat but smaller than a tugboat.
Pinnace meaning & definition 2 of Pinnace.
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